supplementary materials
[13,27-Dimethyl-3,6,9,17,20,23-hexaazatricyclo[23.3.1.111,15]triaconta-1(29),2,9,11,13,15(30),16,23,25,27-decaene-29,30-diol-
5N3,N6,N9,O29,O30]bis(nitrato-
2O,O')lutetium(III)-nitrate-water-ethyl acetate (1/1/0.5/0.25)
In the asymmetric unit of the title compound, [LuIII(C26H34N6O2)(NO3)2]NO3·0.5H2O·0.25C4H8O2, there are two cations and two anions of the title complex, together with a water molecule and half a molecule of ethyl acetate. The Lu atom exhibits a nine-coordinate distorted tricapped trigonal-prismatic coordination geometry. The water molecule is disordered, with occupation factors of 0.4 and 0.6.
- Related literature
- Experimental
- Refinement
- Computing details
- Figures
- [13,27-Dimethyl-3,6,9,17,20,23-hexaazatricyclo[23.3.1.111,15]triaconta-
1(29),2,9,11,13,15 (30),16,23,25,27-decaene-29,30-diol-
κ5N3,N6,N9,O29,O30]bis(nitrato-κ2O,O')lutetium(III)– nitrate–water–ethyl
acetate (1/1/0.5/0.25)
- Acknowledgements
- References
To a methanolic solution (20 ml) of 2,6-diformyl-4-methylphenol(1 mmol) and
Lu(NO3)3.6H2O (0.5 mmol), 1,5-diamino-3-azapentane (1 mmol) was added
dropwise. After refluxing 3 h, the solvent was removed. The resultant yellow
solid was recrystallized in methanol/ethyl acetate (4/1,v/v) to
yield yellow crystals suitable for X-ray analysis.
The carbon-bound H atoms were generated geometrically (C—H 0.93 to 0.97 Å)
and were included in the refinement in the riding model approximation, with
Uiso(H) set to 1.2Ueq(C). The nitrogen H were located in a
difference Fourier map, and were refined with an N—H distance restraint of
0.90 (1) Å for the sp3-N and 0.86 (1) Å for the sp2-N,
their temperature factors were set to 1.2Ueq(C). The water H atoms
were also located in a difference Fourier map, and was refined with an O—H
distance restraint of 0.85 (1) Å.
Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Bruker, 2000); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
[13,27-Dimethyl-3,6,9,17,20,23-hexaazatricyclo[23.3.1.1
11,15]triaconta-
1(29),2,9,11,13,15 (30),16,23,25,27-decaene-29,30-diol-
κ5N3,
N6,
N9,
O29,
O30]bis(nitrato-
κ2O,
O')lutetium(III)– nitrate–water–ethyl
acetate (1/1/0.5/0.25)
top
Crystal data top
| [Lu(C26H34N6O2)(NO3)2]NO3·0.5H2O·0.25C4H8O2 | F(000) = 3432 |
| Mr = 854.63 | Dx = 1.568 Mg m−3 |
| Monoclinic, Cc | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: C -2yc | Cell parameters from 5188 reflections |
| a = 24.649 (3) Å | θ = 2.7–25.6° |
| b = 14.0182 (11) Å | µ = 2.80 mm−1 |
| c = 21.4453 (17) Å | T = 291 K |
| β = 102.307 (2)° | Block, yellow |
| V = 7239.8 (11) Å3 | 0.32 × 0.26 × 0.24 mm |
| Z = 8 | |
Data collection top
Bruker SMART CCD area-detector diffractometer | 9791 independent reflections |
| Radiation source: sealed tube | 8284 reflections with I > 2σ(I) |
| graphite | Rint = 0.046 |
| φ and ω scans | θmax = 26.0°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | h = −28→30 |
| Tmin = 0.42, Tmax = 0.51 | k = −17→17 |
| 20514 measured reflections | l = −26→18 |
Refinement top
| Refinement on F2 | Secondary atom site location: difference Fourier map |
| Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
| R[F2 > 2σ(F2)] = 0.050 | H-atom parameters constrained |
| wR(F2) = 0.104 | w = 1/[σ2(Fo2) + (0.06P)2 + 1.55P] where P = (Fo2 + 2Fc2)/3 |
| S = 0.98 | (Δ/σ)max < 0.001 |
| 9791 reflections | Δρmax = 1.07 e Å−3 |
| 913 parameters | Δρmin = −1.58 e Å−3 |
| 2 restraints | Absolute structure: Flack (1983), with 2678 Friedel pairs |
| Primary atom site location: structure-invariant direct methods | Flack parameter: 0.016 (10) |
Crystal data top
| [Lu(C26H34N6O2)(NO3)2]NO3·0.5H2O·0.25C4H8O2 | V = 7239.8 (11) Å3 |
| Mr = 854.63 | Z = 8 |
| Monoclinic, Cc | Mo Kα radiation |
| a = 24.649 (3) Å | µ = 2.80 mm−1 |
| b = 14.0182 (11) Å | T = 291 K |
| c = 21.4453 (17) Å | 0.32 × 0.26 × 0.24 mm |
| β = 102.307 (2)° | |
Data collection top
Bruker SMART CCD area-detector diffractometer | 9791 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 8284 reflections with I > 2σ(I) |
| Tmin = 0.42, Tmax = 0.51 | Rint = 0.046 |
| 20514 measured reflections | θmax = 26.0° |
Refinement top
| R[F2 > 2σ(F2)] = 0.050 | H-atom parameters constrained |
| wR(F2) = 0.104 | Δρmax = 1.07 e Å−3 |
| S = 0.98 | Δρmin = −1.58 e Å−3 |
| 9791 reflections | Absolute structure: Flack (1983), with 2678 Friedel pairs |
| 913 parameters | Flack parameter: 0.016 (10) |
| 2 restraints | |
Special details top
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes)
are estimated using the full covariance matrix. The cell e.s.d.'s are taken
into account individually in the estimation of e.s.d.'s in distances, angles
and torsion angles; correlations between e.s.d.'s in cell parameters are only
used when they are defined by crystal symmetry. An approximate (isotropic)
treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s.
planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor
wR and goodness of fit S are based on F2, conventional
R-factors R are based on F, with F set to zero for
negative F2. The threshold expression of F2 >
σ(F2) is used only for calculating R-factors(gt) etc.
and is not relevant to the choice of reflections for refinement.
R-factors based on F2 are statistically about twice as large
as those based on F, and R- factors based on ALL data will be
even larger. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top| | x | y | z | Uiso*/Ueq | Occ. (<1) |
| C1 | 0.9197 (4) | 0.6393 (7) | 0.5542 (6) | 0.043 (2) | |
| C2 | 0.9711 (4) | 0.6880 (7) | 0.5549 (6) | 0.040 (2) | |
| C3 | 0.9722 (5) | 0.7835 (6) | 0.5339 (6) | 0.045 (3) | |
| H3 | 1.0062 | 0.8125 | 0.5342 | 0.054* | |
| C4 | 0.9244 (5) | 0.8340 (7) | 0.5132 (6) | 0.050 (3) | |
| C5 | 0.8765 (5) | 0.7906 (8) | 0.5130 (6) | 0.055 (3) | |
| H5 | 0.8442 | 0.8258 | 0.4995 | 0.066* | |
| C6 | 0.8709 (4) | 0.6956 (8) | 0.5316 (6) | 0.045 (3) | |
| C7 | 0.9282 (5) | 0.9340 (7) | 0.4926 (6) | 0.054 (3) | |
| H7A | 0.8916 | 0.9582 | 0.4757 | 0.080* | |
| H7B | 0.9497 | 0.9367 | 0.4602 | 0.080* | |
| H7C | 0.9458 | 0.9720 | 0.5284 | 0.080* | |
| C8 | 0.8162 (5) | 0.6599 (8) | 0.5362 (6) | 0.049 (3) | |
| H8 | 0.7878 | 0.7049 | 0.5283 | 0.059* | |
| C9 | 0.7438 (5) | 0.5612 (9) | 0.5532 (7) | 0.052 (3) | |
| H9A | 0.7247 | 0.5244 | 0.5168 | 0.063* | |
| H9B | 0.7251 | 0.6222 | 0.5528 | 0.063* | |
| C10 | 0.7423 (5) | 0.5092 (8) | 0.6134 (6) | 0.049 (3) | |
| H10A | 0.7599 | 0.5470 | 0.6500 | 0.059* | |
| H10B | 0.7042 | 0.4971 | 0.6163 | 0.059* | |
| C11 | 0.7781 (5) | 0.3693 (8) | 0.6744 (6) | 0.052 (3) | |
| H11A | 0.7420 | 0.3599 | 0.6846 | 0.062* | |
| H11B | 0.8007 | 0.4071 | 0.7080 | 0.062* | |
| C12 | 0.8055 (5) | 0.2746 (9) | 0.6691 (6) | 0.057 (3) | |
| H12A | 0.8178 | 0.2472 | 0.7112 | 0.069* | |
| H12B | 0.7789 | 0.2312 | 0.6438 | 0.069* | |
| C13 | 0.8871 (5) | 0.2180 (9) | 0.6469 (5) | 0.051 (3) | |
| H13 | 0.8802 | 0.1712 | 0.6749 | 0.062* | |
| C14 | 0.9349 (3) | 0.2014 (5) | 0.6188 (3) | 0.040 (3) | |
| C15 | 0.9667 (3) | 0.1209 (4) | 0.6392 (3) | 0.054 (4) | |
| H15 | 0.9573 | 0.0813 | 0.6701 | 0.065* | |
| C16 | 1.0125 (3) | 0.0996 (4) | 0.6135 (4) | 0.059 (4) | |
| C17 | 1.0265 (3) | 0.1588 (6) | 0.5674 (4) | 0.056 (3) | |
| H17 | 1.0571 | 0.1446 | 0.5502 | 0.067* | |
| C18 | 0.9947 (3) | 0.2393 (5) | 0.5470 (3) | 0.054 (3) | |
| C19 | 0.9489 (3) | 0.2606 (4) | 0.5727 (3) | 0.046 (3) | |
| C20 | 1.0465 (5) | 0.0076 (8) | 0.6313 (6) | 0.058 (3) | |
| H20A | 1.0267 | −0.0345 | 0.6539 | 0.088* | |
| H20B | 1.0818 | 0.0232 | 0.6580 | 0.088* | |
| H20C | 1.0520 | −0.0231 | 0.5932 | 0.088* | |
| C21 | 1.0143 (6) | 0.3040 (10) | 0.4989 (7) | 0.065 (4) | |
| H21 | 1.0444 | 0.2733 | 0.4831 | 0.078* | |
| C22 | 0.9861 (6) | 0.4177 (8) | 0.4176 (7) | 0.062 (3) | |
| H22A | 0.9938 | 0.4066 | 0.3757 | 0.074* | |
| H22B | 0.9578 | 0.4667 | 0.4142 | 0.074* | |
| C23 | 1.0382 (5) | 0.4466 (8) | 0.4648 (6) | 0.049 (3) | |
| H23A | 1.0713 | 0.4243 | 0.4516 | 0.059* | |
| H23B | 1.0404 | 0.5153 | 0.4705 | 0.059* | |
| C24 | 1.0743 (5) | 0.4001 (9) | 0.5807 (6) | 0.061 (3) | |
| H24A | 1.1089 | 0.3773 | 0.5714 | 0.073* | |
| H24B | 1.0640 | 0.3578 | 0.6121 | 0.073* | |
| C25 | 1.0821 (5) | 0.5007 (8) | 0.6073 (7) | 0.054 (3) | |
| H25A | 1.0968 | 0.4984 | 0.6530 | 0.064* | |
| H25B | 1.1083 | 0.5350 | 0.5877 | 0.064* | |
| C26 | 1.0234 (4) | 0.6374 (7) | 0.5722 (5) | 0.043 (2) | |
| H26 | 1.0555 | 0.6687 | 0.5675 | 0.052* | |
| C27 | 0.6628 (5) | −0.0607 (8) | 0.8491 (6) | 0.051 (3) | |
| C28 | 0.6884 (4) | −0.1463 (7) | 0.8727 (5) | 0.043 (2) | |
| C29 | 0.6701 (4) | −0.2323 (7) | 0.8434 (7) | 0.051 (3) | |
| H29 | 0.6879 | −0.2880 | 0.8604 | 0.061* | |
| C30 | 0.6263 (5) | −0.2399 (7) | 0.7895 (7) | 0.056 (3) | |
| C31 | 0.5985 (5) | −0.1562 (7) | 0.7699 (6) | 0.050 (3) | |
| H31 | 0.5670 | −0.1592 | 0.7372 | 0.060* | |
| C32 | 0.6154 (5) | −0.0653 (7) | 0.7970 (5) | 0.042 (2) | |
| C33 | 0.6069 (5) | −0.3341 (8) | 0.7597 (7) | 0.062 (4) | |
| H33A | 0.6329 | −0.3568 | 0.7355 | 0.093* | |
| H33B | 0.5711 | −0.3265 | 0.7319 | 0.093* | |
| H33C | 0.6044 | −0.3793 | 0.7926 | 0.093* | |
| C34 | 0.5814 (4) | 0.0168 (8) | 0.7729 (6) | 0.049 (3) | |
| H34 | 0.5461 | 0.0044 | 0.7486 | 0.059* | |
| C35 | 0.5516 (4) | 0.1746 (8) | 0.7561 (6) | 0.050 (3) | |
| H35A | 0.5271 | 0.1493 | 0.7182 | 0.060* | |
| H35B | 0.5295 | 0.1873 | 0.7876 | 0.060* | |
| C36 | 0.5767 (5) | 0.2641 (8) | 0.7401 (6) | 0.049 (3) | |
| H36A | 0.5938 | 0.2546 | 0.7038 | 0.059* | |
| H36B | 0.5486 | 0.3133 | 0.7293 | 0.059* | |
| C37 | 0.6478 (5) | 0.3853 (7) | 0.7905 (6) | 0.050 (3) | |
| H37A | 0.6624 | 0.3846 | 0.7519 | 0.060* | |
| H37B | 0.6213 | 0.4372 | 0.7871 | 0.060* | |
| C38 | 0.6937 (4) | 0.4018 (9) | 0.8460 (6) | 0.051 (3) | |
| H38A | 0.6797 | 0.4046 | 0.8850 | 0.061* | |
| H38B | 0.7123 | 0.4615 | 0.8412 | 0.061* | |
| C39 | 0.7845 (5) | 0.3431 (8) | 0.8509 (6) | 0.049 (3) | |
| H39 | 0.7936 | 0.4075 | 0.8555 | 0.059* | |
| C40 | 0.8274 (5) | 0.2798 (8) | 0.8475 (6) | 0.053 (3) | |
| C41 | 0.8802 (5) | 0.3194 (8) | 0.8479 (6) | 0.051 (3) | |
| H41 | 0.8848 | 0.3850 | 0.8531 | 0.061* | |
| C42 | 0.9261 (5) | 0.2645 (9) | 0.8407 (7) | 0.059 (3) | |
| C43 | 0.9177 (5) | 0.1680 (9) | 0.8314 (6) | 0.056 (3) | |
| H43 | 0.9469 | 0.1308 | 0.8241 | 0.067* | |
| C44 | 0.8659 (5) | 0.1219 (8) | 0.8326 (6) | 0.050 (3) | |
| C45 | 0.8203 (4) | 0.1779 (6) | 0.8436 (5) | 0.038 (2) | |
| C46 | 0.9822 (5) | 0.3050 (9) | 0.8427 (7) | 0.058 (3) | |
| H46A | 1.0025 | 0.2634 | 0.8204 | 0.088* | |
| H46B | 1.0018 | 0.3111 | 0.8863 | 0.088* | |
| H46C | 0.9786 | 0.3666 | 0.8227 | 0.088* | |
| C47 | 0.8622 (4) | 0.0231 (7) | 0.8258 (6) | 0.045 (3) | |
| H47 | 0.8922 | −0.0100 | 0.8166 | 0.054* | |
| C48 | 0.8125 (6) | −0.1293 (8) | 0.8313 (7) | 0.056 (3) | |
| H48A | 0.8399 | −0.1581 | 0.8107 | 0.068* | |
| H48B | 0.7759 | −0.1466 | 0.8071 | 0.068* | |
| C49 | 0.8200 (6) | −0.1655 (8) | 0.8978 (7) | 0.057 (3) | |
| H49A | 0.8088 | −0.2320 | 0.8968 | 0.068* | |
| H49B | 0.8589 | −0.1619 | 0.9186 | 0.068* | |
| C50 | 0.8126 (5) | −0.1082 (9) | 1.0030 (6) | 0.053 (3) | |
| H50A | 0.8464 | −0.0707 | 1.0113 | 0.064* | |
| H50B | 0.8206 | −0.1718 | 1.0202 | 0.064* | |
| C51 | 0.7663 (5) | −0.0596 (10) | 1.0305 (6) | 0.058 (3) | |
| H51A | 0.7636 | −0.0869 | 1.0713 | 0.070* | |
| H51B | 0.7722 | 0.0086 | 1.0353 | 0.070* | |
| C52 | 0.7310 (5) | −0.1478 (7) | 0.9330 (6) | 0.045 (3) | |
| H52 | 0.7338 | −0.2126 | 0.9505 | 0.054* | |
| C53 | 0.7210 (8) | 0.7880 (17) | 0.6733 (11) | 0.048 (5) | 0.50 |
| H53A | 0.7306 | 0.7770 | 0.7185 | 0.072* | 0.50 |
| H53B | 0.7231 | 0.7290 | 0.6512 | 0.072* | 0.50 |
| H53C | 0.6839 | 0.8128 | 0.6617 | 0.072* | 0.50 |
| C54 | 0.7593 (9) | 0.8558 (15) | 0.6559 (9) | 0.041 (5) | 0.50 |
| H54A | 0.7586 | 0.9148 | 0.6793 | 0.049* | 0.50 |
| H54B | 0.7488 | 0.8699 | 0.6106 | 0.049* | 0.50 |
| C55 | 0.8599 (8) | 0.8684 (18) | 0.6700 (14) | 0.054 (7) | 0.50 |
| C56 | 0.9091 (9) | 0.8130 (16) | 0.6889 (11) | 0.048 (5) | 0.50 |
| H56A | 0.9384 | 0.8525 | 0.7120 | 0.072* | 0.50 |
| H56B | 0.9198 | 0.7875 | 0.6518 | 0.072* | 0.50 |
| H56C | 0.9023 | 0.7615 | 0.7158 | 0.072* | 0.50 |
| Lu1 | 0.861690 (18) | 0.43572 (3) | 0.58012 (2) | 0.04135 (12) | |
| Lu2 | 0.686348 (16) | 0.16395 (2) | 0.834229 (18) | 0.03540 (10) | |
| N1 | 0.8014 (4) | 0.5761 (6) | 0.5494 (5) | 0.046 (2) | |
| N2 | 0.7720 (4) | 0.4191 (6) | 0.6124 (5) | 0.046 (2) | |
| H2 | 0.7502 | 0.3815 | 0.5827 | 0.055* | |
| N3 | 0.8538 (4) | 0.2866 (6) | 0.6385 (4) | 0.045 (2) | |
| N4 | 0.9676 (5) | 0.3261 (7) | 0.4451 (5) | 0.057 (3) | |
| H4A | 0.9359 | 0.3351 | 0.4588 | 0.069* | |
| H4B | 0.9625 | 0.2790 | 0.4159 | 0.069* | |
| N5 | 1.0309 (4) | 0.3991 (6) | 0.5223 (5) | 0.055 (2) | |
| N6 | 1.0278 (4) | 0.5506 (6) | 0.5939 (5) | 0.052 (2) | |
| H6A | 0.9988 | 0.5216 | 0.6006 | 0.062* | |
| N7 | 0.8102 (5) | 0.4138 (7) | 0.4465 (6) | 0.056 (3) | |
| N8 | 0.9215 (4) | 0.4878 (8) | 0.7090 (5) | 0.057 (3) | |
| N9 | 0.7326 (4) | 0.3201 (6) | 0.8481 (6) | 0.051 (3) | |
| N10 | 0.6186 (4) | 0.2922 (6) | 0.7962 (5) | 0.048 (2) | |
| H10 | 0.5997 | 0.3011 | 0.8279 | 0.058* | |
| N11 | 0.5950 (3) | 0.1032 (6) | 0.7817 (4) | 0.042 (2) | |
| N12 | 0.7163 (4) | −0.0818 (6) | 0.9802 (5) | 0.050 (2) | |
| H12C | 0.6901 | −0.1084 | 0.9981 | 0.061* | |
| H12D | 0.7024 | −0.0275 | 0.9607 | 0.061* | |
| N13 | 0.7873 (3) | −0.1108 (6) | 0.9349 (4) | 0.041 (2) | |
| N14 | 0.8188 (4) | −0.0240 (6) | 0.8319 (4) | 0.042 (2) | |
| H14A | 0.7905 | 0.0089 | 0.8368 | 0.050* | |
| N15 | 0.7020 (4) | 0.1155 (7) | 0.7101 (5) | 0.049 (2) | |
| N16 | 0.6773 (5) | 0.2001 (7) | 0.9653 (6) | 0.057 (3) | |
| N17 | 0.6489 (4) | 0.7472 (7) | 0.0480 (5) | 0.056 (2) | |
| N18 | 0.9898 (5) | 0.1321 (8) | 0.3560 (5) | 0.059 (3) | |
| O1 | 0.9185 (3) | 0.5520 (5) | 0.5724 (4) | 0.0416 (17) | |
| O2 | 0.9172 (3) | 0.3362 (5) | 0.5484 (4) | 0.0427 (17) | |
| O3 | 0.8551 (4) | 0.4623 (6) | 0.4596 (4) | 0.057 (2) | |
| O4 | 0.7950 (4) | 0.3748 (6) | 0.4930 (4) | 0.060 (2) | |
| O5 | 0.7842 (4) | 0.4060 (6) | 0.3895 (5) | 0.070 (3) | |
| O6 | 0.9455 (4) | 0.4326 (6) | 0.6774 (4) | 0.059 (2) | |
| O7 | 0.8713 (3) | 0.5109 (5) | 0.6807 (4) | 0.051 (2) | |
| O8 | 0.9429 (4) | 0.5204 (6) | 0.7596 (4) | 0.066 (2) | |
| O9 | 0.7745 (3) | 0.1369 (5) | 0.8477 (4) | 0.0429 (17) | |
| O10 | 0.6809 (3) | 0.0204 (5) | 0.8760 (3) | 0.0414 (17) | |
| O11 | 0.6952 (3) | 0.1997 (5) | 0.7290 (4) | 0.050 (2) | |
| O12 | 0.7000 (4) | 0.0487 (6) | 0.7474 (4) | 0.054 (2) | |
| O13 | 0.7098 (4) | 0.1021 (6) | 0.6571 (4) | 0.056 (2) | |
| O14 | 0.7238 (4) | 0.1754 (6) | 0.9538 (4) | 0.052 (2) | |
| O15 | 0.6371 (4) | 0.2078 (6) | 0.9178 (4) | 0.054 (2) | |
| O16 | 0.6708 (3) | 0.2150 (6) | 1.0200 (4) | 0.056 (2) | |
| O17 | 0.6216 (3) | 0.6988 (5) | 0.0788 (4) | 0.052 (2) | |
| O18 | 0.6296 (3) | 0.8255 (6) | 0.0222 (4) | 0.054 (2) | |
| O19 | 0.6943 (3) | 0.7219 (6) | 0.0393 (4) | 0.054 (2) | |
| O20 | 1.0301 (4) | 0.1780 (6) | 0.3784 (4) | 0.060 (2) | |
| O21 | 0.9908 (3) | 0.0624 (6) | 0.3228 (5) | 0.059 (2) | |
| O22 | 0.9461 (3) | 0.1601 (5) | 0.3690 (4) | 0.055 (2) | |
| O23 | 0.8155 (6) | 0.8141 (9) | 0.6712 (7) | 0.039 (3) | 0.50 |
| O24 | 0.8546 (6) | 0.9498 (14) | 0.6541 (10) | 0.065 (5) | 0.50 |
| O25 | 0.8703 (6) | 0.6513 (10) | 0.8171 (8) | 0.066 (4) | 0.60 |
| H25F | 0.8771 | 0.6497 | 0.7799 | 0.079* | 0.60 |
| H25C | 0.8395 | 0.6238 | 0.8167 | 0.079* | 0.60 |
| O26 | 0.5948 (7) | 0.5428 (14) | 0.9459 (10) | 0.056 (5) | 0.40 |
| H26A | 0.6012 | 0.5507 | 0.9861 | 0.067* | 0.40 |
| H26B | 0.5846 | 0.4856 | 0.9370 | 0.067* | 0.40 |
Atomic displacement parameters (Å2) top| | U11 | U22 | U33 | U12 | U13 | U23 |
| C1 | 0.046 (6) | 0.027 (5) | 0.053 (7) | −0.003 (4) | 0.006 (5) | −0.004 (5) |
| C2 | 0.031 (5) | 0.038 (5) | 0.057 (7) | −0.012 (4) | 0.019 (4) | −0.010 (5) |
| C3 | 0.057 (6) | 0.024 (5) | 0.057 (7) | −0.004 (4) | 0.018 (5) | −0.006 (5) |
| C4 | 0.058 (7) | 0.032 (5) | 0.053 (7) | −0.006 (5) | −0.004 (5) | −0.009 (5) |
| C5 | 0.061 (7) | 0.036 (6) | 0.065 (8) | 0.020 (5) | 0.009 (6) | 0.007 (6) |
| C6 | 0.041 (6) | 0.043 (6) | 0.053 (7) | 0.014 (5) | 0.015 (5) | −0.004 (5) |
| C7 | 0.063 (7) | 0.038 (6) | 0.049 (7) | 0.007 (5) | −0.010 (6) | 0.002 (5) |
| C8 | 0.044 (6) | 0.051 (6) | 0.050 (7) | 0.013 (5) | 0.005 (5) | −0.014 (5) |
| C9 | 0.037 (6) | 0.057 (7) | 0.061 (9) | 0.007 (5) | 0.007 (6) | 0.001 (6) |
| C10 | 0.048 (6) | 0.041 (6) | 0.058 (8) | 0.004 (5) | 0.013 (5) | 0.006 (5) |
| C11 | 0.067 (8) | 0.044 (6) | 0.055 (7) | −0.019 (5) | 0.037 (6) | −0.016 (5) |
| C12 | 0.056 (7) | 0.062 (7) | 0.055 (8) | −0.027 (6) | 0.015 (6) | −0.002 (6) |
| C13 | 0.054 (7) | 0.061 (7) | 0.033 (6) | −0.018 (6) | −0.006 (5) | 0.007 (5) |
| C14 | 0.056 (7) | 0.018 (4) | 0.039 (6) | 0.002 (4) | −0.005 (5) | 0.009 (4) |
| C15 | 0.066 (8) | 0.028 (5) | 0.055 (7) | −0.003 (5) | −0.020 (6) | 0.011 (5) |
| C16 | 0.068 (8) | 0.053 (7) | 0.046 (7) | 0.010 (6) | −0.013 (6) | −0.025 (6) |
| C17 | 0.039 (6) | 0.058 (7) | 0.062 (8) | 0.008 (5) | −0.009 (5) | −0.016 (6) |
| C18 | 0.065 (8) | 0.052 (7) | 0.040 (6) | 0.007 (5) | −0.003 (6) | −0.014 (5) |
| C19 | 0.049 (7) | 0.040 (6) | 0.040 (6) | −0.002 (5) | −0.010 (5) | −0.008 (5) |
| C20 | 0.064 (8) | 0.046 (6) | 0.052 (8) | 0.017 (5) | −0.015 (6) | −0.011 (6) |
| C21 | 0.057 (8) | 0.066 (8) | 0.068 (9) | 0.024 (6) | 0.005 (7) | −0.006 (7) |
| C22 | 0.073 (9) | 0.052 (7) | 0.066 (9) | 0.015 (6) | 0.032 (7) | 0.014 (6) |
| C23 | 0.048 (6) | 0.050 (6) | 0.055 (7) | 0.010 (5) | 0.027 (5) | −0.020 (5) |
| C24 | 0.056 (7) | 0.065 (7) | 0.054 (8) | 0.019 (6) | −0.003 (6) | −0.015 (6) |
| C25 | 0.040 (6) | 0.048 (6) | 0.070 (9) | 0.006 (5) | 0.007 (5) | 0.006 (6) |
| C26 | 0.032 (5) | 0.046 (6) | 0.051 (7) | −0.002 (4) | 0.010 (5) | 0.008 (5) |
| C27 | 0.047 (6) | 0.047 (6) | 0.058 (8) | −0.012 (5) | 0.015 (6) | 0.019 (6) |
| C28 | 0.044 (6) | 0.042 (6) | 0.045 (6) | −0.007 (4) | 0.014 (5) | −0.012 (5) |
| C29 | 0.049 (6) | 0.022 (4) | 0.078 (9) | 0.002 (4) | 0.007 (6) | 0.011 (5) |
| C30 | 0.066 (7) | 0.019 (5) | 0.077 (9) | −0.010 (4) | 0.006 (6) | −0.013 (5) |
| C31 | 0.037 (6) | 0.040 (6) | 0.070 (8) | −0.004 (4) | 0.007 (5) | 0.007 (6) |
| C32 | 0.044 (6) | 0.041 (5) | 0.039 (6) | −0.001 (4) | 0.002 (5) | −0.003 (5) |
| C33 | 0.057 (7) | 0.046 (6) | 0.070 (9) | −0.014 (5) | −0.015 (6) | −0.018 (6) |
| C34 | 0.031 (5) | 0.058 (7) | 0.051 (7) | −0.011 (5) | −0.009 (5) | −0.013 (6) |
| C35 | 0.038 (5) | 0.050 (6) | 0.057 (7) | 0.008 (4) | 0.003 (5) | 0.020 (6) |
| C36 | 0.055 (7) | 0.043 (6) | 0.048 (7) | 0.010 (5) | 0.009 (5) | −0.003 (5) |
| C37 | 0.071 (8) | 0.034 (5) | 0.050 (7) | 0.009 (5) | 0.026 (6) | 0.018 (5) |
| C38 | 0.032 (6) | 0.067 (7) | 0.055 (8) | −0.002 (5) | 0.011 (5) | −0.003 (6) |
| C39 | 0.060 (7) | 0.039 (6) | 0.054 (8) | −0.007 (5) | 0.022 (6) | −0.014 (5) |
| C40 | 0.051 (7) | 0.049 (6) | 0.057 (8) | −0.009 (5) | 0.007 (6) | −0.004 (6) |
| C41 | 0.061 (7) | 0.039 (6) | 0.049 (7) | −0.016 (5) | 0.005 (6) | 0.016 (5) |
| C42 | 0.040 (6) | 0.062 (7) | 0.078 (9) | −0.013 (5) | 0.018 (6) | 0.023 (7) |
| C43 | 0.055 (7) | 0.062 (7) | 0.057 (8) | 0.001 (6) | 0.026 (6) | 0.002 (6) |
| C44 | 0.053 (7) | 0.042 (6) | 0.054 (7) | −0.006 (5) | 0.006 (5) | −0.002 (5) |
| C45 | 0.038 (5) | 0.030 (5) | 0.048 (6) | −0.010 (4) | 0.018 (4) | −0.006 (4) |
| C46 | 0.053 (7) | 0.048 (6) | 0.072 (9) | −0.020 (5) | 0.008 (6) | 0.020 (6) |
| C47 | 0.034 (5) | 0.047 (6) | 0.053 (7) | 0.016 (5) | 0.008 (4) | 0.016 (6) |
| C48 | 0.066 (8) | 0.037 (6) | 0.074 (9) | −0.011 (5) | 0.031 (7) | 0.003 (6) |
| C49 | 0.059 (8) | 0.048 (6) | 0.069 (9) | 0.011 (5) | 0.027 (7) | 0.025 (6) |
| C50 | 0.043 (6) | 0.052 (7) | 0.059 (8) | −0.005 (5) | −0.001 (5) | 0.002 (6) |
| C51 | 0.056 (7) | 0.074 (9) | 0.045 (7) | −0.016 (6) | 0.010 (6) | −0.003 (6) |
| C52 | 0.051 (6) | 0.039 (6) | 0.049 (7) | 0.001 (4) | 0.019 (5) | 0.014 (5) |
| C53 | 0.033 (10) | 0.067 (14) | 0.044 (12) | −0.009 (9) | 0.007 (9) | −0.022 (11) |
| C54 | 0.060 (14) | 0.044 (11) | 0.023 (10) | 0.030 (10) | 0.018 (9) | 0.013 (8) |
| C55 | 0.026 (10) | 0.053 (13) | 0.082 (19) | 0.015 (9) | 0.011 (11) | −0.023 (13) |
| C56 | 0.037 (11) | 0.060 (13) | 0.049 (13) | 0.027 (10) | 0.011 (9) | 0.001 (11) |
| Lu1 | 0.0338 (2) | 0.0395 (2) | 0.0515 (3) | −0.00315 (19) | 0.01054 (18) | −0.0019 (2) |
| Lu2 | 0.0344 (2) | 0.02812 (18) | 0.0447 (2) | −0.00110 (17) | 0.01064 (16) | 0.0027 (2) |
| N1 | 0.035 (5) | 0.045 (5) | 0.056 (6) | 0.005 (4) | 0.004 (4) | −0.001 (4) |
| N2 | 0.042 (5) | 0.035 (4) | 0.062 (6) | −0.010 (4) | 0.016 (4) | −0.006 (4) |
| N3 | 0.045 (5) | 0.050 (5) | 0.038 (5) | −0.015 (4) | 0.008 (4) | 0.009 (4) |
| N4 | 0.062 (6) | 0.070 (7) | 0.039 (6) | 0.004 (5) | 0.009 (5) | 0.000 (5) |
| N5 | 0.062 (6) | 0.042 (5) | 0.058 (6) | 0.004 (4) | 0.007 (5) | 0.000 (5) |
| N6 | 0.033 (5) | 0.044 (5) | 0.079 (7) | −0.005 (4) | 0.011 (5) | −0.002 (5) |
| N7 | 0.071 (7) | 0.040 (5) | 0.051 (7) | 0.001 (5) | −0.001 (6) | 0.006 (5) |
| N8 | 0.041 (5) | 0.069 (6) | 0.059 (7) | −0.018 (5) | 0.005 (5) | −0.021 (6) |
| N9 | 0.046 (5) | 0.025 (4) | 0.080 (8) | −0.008 (4) | 0.008 (5) | −0.013 (5) |
| N10 | 0.033 (4) | 0.042 (5) | 0.069 (7) | 0.005 (4) | 0.008 (4) | 0.015 (5) |
| N11 | 0.030 (4) | 0.047 (5) | 0.043 (5) | 0.006 (4) | −0.001 (4) | 0.009 (4) |
| N12 | 0.042 (5) | 0.035 (5) | 0.073 (7) | 0.003 (4) | 0.010 (5) | 0.002 (5) |
| N13 | 0.040 (5) | 0.036 (4) | 0.045 (5) | −0.003 (3) | 0.002 (4) | 0.001 (4) |
| N14 | 0.039 (5) | 0.031 (4) | 0.054 (6) | 0.009 (3) | 0.008 (4) | −0.002 (4) |
| N15 | 0.034 (5) | 0.069 (7) | 0.045 (6) | −0.005 (4) | 0.014 (4) | 0.000 (5) |
| N16 | 0.070 (7) | 0.042 (5) | 0.063 (8) | −0.024 (5) | 0.021 (6) | 0.005 (5) |
| N17 | 0.058 (6) | 0.062 (6) | 0.055 (6) | 0.010 (5) | 0.026 (5) | 0.007 (5) |
| N18 | 0.062 (7) | 0.062 (6) | 0.056 (7) | −0.011 (5) | 0.022 (5) | −0.012 (6) |
| O1 | 0.033 (3) | 0.041 (4) | 0.052 (5) | −0.003 (3) | 0.011 (3) | 0.002 (3) |
| O2 | 0.053 (4) | 0.035 (4) | 0.041 (4) | 0.012 (3) | 0.011 (3) | 0.005 (3) |
| O3 | 0.055 (5) | 0.054 (5) | 0.059 (6) | −0.007 (4) | 0.007 (4) | −0.001 (4) |
| O4 | 0.062 (5) | 0.058 (5) | 0.054 (5) | −0.007 (4) | 0.001 (4) | 0.002 (4) |
| O5 | 0.056 (5) | 0.066 (5) | 0.072 (7) | 0.005 (4) | −0.020 (5) | 0.012 (5) |
| O6 | 0.059 (5) | 0.066 (5) | 0.051 (5) | −0.005 (4) | 0.010 (4) | 0.000 (4) |
| O7 | 0.035 (4) | 0.055 (5) | 0.064 (5) | −0.018 (3) | 0.011 (4) | −0.018 (4) |
| O8 | 0.068 (6) | 0.063 (5) | 0.057 (6) | −0.009 (4) | −0.007 (4) | −0.031 (5) |
| O9 | 0.046 (4) | 0.033 (3) | 0.053 (5) | 0.003 (3) | 0.017 (4) | 0.001 (3) |
| O10 | 0.044 (4) | 0.035 (3) | 0.041 (4) | −0.012 (3) | −0.001 (3) | 0.004 (3) |
| O11 | 0.052 (5) | 0.035 (4) | 0.068 (6) | 0.011 (3) | 0.021 (4) | 0.008 (4) |
| O12 | 0.060 (5) | 0.051 (5) | 0.056 (5) | −0.002 (4) | 0.022 (4) | 0.004 (4) |
| O13 | 0.066 (5) | 0.062 (5) | 0.054 (5) | −0.014 (4) | 0.044 (4) | −0.011 (4) |
| O14 | 0.048 (5) | 0.056 (5) | 0.053 (5) | −0.023 (4) | 0.012 (4) | −0.014 (4) |
| O15 | 0.058 (5) | 0.052 (5) | 0.052 (5) | 0.002 (4) | 0.014 (4) | −0.003 (4) |
| O16 | 0.054 (5) | 0.056 (5) | 0.057 (6) | −0.012 (4) | 0.013 (4) | −0.012 (4) |
| O17 | 0.054 (5) | 0.049 (4) | 0.057 (5) | −0.010 (4) | 0.018 (4) | 0.017 (4) |
| O18 | 0.049 (5) | 0.053 (5) | 0.067 (6) | 0.015 (4) | 0.027 (4) | 0.027 (4) |
| O19 | 0.046 (4) | 0.063 (5) | 0.055 (5) | 0.013 (4) | 0.012 (4) | 0.022 (4) |
| O20 | 0.058 (5) | 0.065 (5) | 0.059 (6) | −0.025 (4) | 0.015 (4) | −0.023 (4) |
| O21 | 0.049 (5) | 0.058 (5) | 0.070 (6) | −0.004 (4) | 0.015 (4) | −0.009 (5) |
| O22 | 0.049 (5) | 0.054 (4) | 0.064 (6) | −0.015 (4) | 0.014 (4) | −0.016 (4) |
| O23 | 0.035 (7) | 0.036 (7) | 0.041 (8) | 0.011 (5) | −0.006 (6) | 0.001 (6) |
| O24 | 0.031 (8) | 0.081 (13) | 0.082 (14) | −0.011 (8) | 0.011 (8) | 0.008 (10) |
| O25 | 0.068 (10) | 0.061 (9) | 0.075 (11) | −0.009 (7) | 0.028 (8) | 0.020 (8) |
| O26 | 0.034 (9) | 0.072 (13) | 0.061 (13) | −0.028 (9) | 0.009 (9) | −0.027 (11) |
Geometric parameters (Å, °) top
| C1—O1 | 1.286 (12) | C39—C40 | 1.394 (17) |
| C1—C6 | 1.434 (14) | C39—H39 | 0.9300 |
| C1—C2 | 1.436 (14) | C40—C41 | 1.414 (17) |
| C2—C3 | 1.416 (14) | C40—C45 | 1.439 (14) |
| C2—C26 | 1.449 (14) | C41—C42 | 1.404 (18) |
| C3—C4 | 1.365 (15) | C41—H41 | 0.9300 |
| C3—H3 | 0.9300 | C42—C43 | 1.376 (18) |
| C4—C5 | 1.328 (18) | C42—C46 | 1.488 (15) |
| C4—C7 | 1.479 (15) | C43—C44 | 1.434 (17) |
| C5—C6 | 1.405 (16) | C43—H43 | 0.9300 |
| C5—H5 | 0.9300 | C44—C47 | 1.393 (15) |
| C6—C8 | 1.460 (17) | C44—C45 | 1.432 (16) |
| C7—H7A | 0.9600 | C45—O9 | 1.287 (12) |
| C7—H7B | 0.9600 | C46—H46A | 0.9600 |
| C7—H7C | 0.9600 | C46—H46B | 0.9600 |
| C8—N1 | 1.279 (15) | C46—H46C | 0.9600 |
| C8—H8 | 0.9300 | C47—N14 | 1.287 (14) |
| C9—N1 | 1.456 (15) | C47—H47 | 0.9300 |
| C9—C10 | 1.489 (18) | C48—N14 | 1.483 (13) |
| C9—H9A | 0.9700 | C48—C49 | 1.489 (18) |
| C9—H9B | 0.9700 | C48—H48A | 0.9700 |
| C10—N2 | 1.462 (13) | C48—H48B | 0.9700 |
| C10—H10A | 0.9700 | C49—N13 | 1.464 (15) |
| C10—H10B | 0.9700 | C49—H49A | 0.9700 |
| C11—N2 | 1.479 (15) | C49—H49B | 0.9700 |
| C11—C12 | 1.504 (17) | C50—N13 | 1.461 (15) |
| C11—H11A | 0.9700 | C50—C51 | 1.550 (19) |
| C11—H11B | 0.9700 | C50—H50A | 0.9700 |
| C12—N3 | 1.486 (15) | C50—H50B | 0.9700 |
| C12—H12A | 0.9700 | C51—N12 | 1.486 (15) |
| C12—H12B | 0.9700 | C51—H51A | 0.9700 |
| C13—N3 | 1.252 (15) | C51—H51B | 0.9700 |
| C13—C14 | 1.452 (14) | C52—N13 | 1.472 (13) |
| C13—H13 | 0.9300 | C52—N12 | 1.474 (15) |
| C14—C15 | 1.3900 | C52—H52 | 0.9800 |
| C14—C19 | 1.3900 | C53—C54 | 1.44 (3) |
| C15—C16 | 1.3900 | C53—H53A | 0.9600 |
| C15—H15 | 0.9300 | C53—H53B | 0.9600 |
| C16—C17 | 1.3900 | C53—H53C | 0.9600 |
| C16—C20 | 1.541 (11) | C54—O23 | 1.47 (2) |
| C17—C18 | 1.3900 | C54—H54A | 0.9700 |
| C17—H17 | 0.9300 | C54—H54B | 0.9700 |
| C18—C19 | 1.3900 | C55—O24 | 1.19 (3) |
| C18—C21 | 1.526 (17) | C55—O23 | 1.34 (3) |
| C19—O2 | 1.353 (8) | C55—C56 | 1.43 (3) |
| C20—H20A | 0.9600 | C56—H56A | 0.9600 |
| C20—H20B | 0.9600 | C56—H56B | 0.9600 |
| C20—H20C | 0.9600 | C56—H56C | 0.9600 |
| C21—N5 | 1.452 (17) | Lu1—O2 | 2.163 (7) |
| C21—N4 | 1.478 (16) | Lu1—O1 | 2.178 (7) |
| C21—H21 | 0.9800 | Lu1—O7 | 2.366 (8) |
| C22—C23 | 1.512 (18) | Lu1—O4 | 2.368 (8) |
| C22—N4 | 1.522 (15) | Lu1—N2 | 2.465 (9) |
| C22—H22A | 0.9700 | Lu1—N3 | 2.466 (9) |
| C22—H22B | 0.9700 | Lu1—N1 | 2.469 (9) |
| C23—N5 | 1.446 (16) | Lu1—O3 | 2.582 (9) |
| C23—H23A | 0.9700 | Lu1—O6 | 2.605 (8) |
| C23—H23B | 0.9700 | Lu1—N7 | 2.892 (11) |
| C24—N5 | 1.462 (14) | Lu2—O9 | 2.163 (7) |
| C24—C25 | 1.519 (16) | Lu2—O10 | 2.218 (7) |
| C24—H24A | 0.9700 | Lu2—O11 | 2.366 (9) |
| C24—H24B | 0.9700 | Lu2—N11 | 2.446 (8) |
| C25—N6 | 1.482 (13) | Lu2—O15 | 2.447 (9) |
| C25—H25A | 0.9700 | Lu2—N9 | 2.457 (8) |
| C25—H25B | 0.9700 | Lu2—N10 | 2.471 (8) |
| C26—N6 | 1.299 (13) | Lu2—O14 | 2.539 (9) |
| C26—H26 | 0.9300 | Lu2—O12 | 2.542 (9) |
| C27—O10 | 1.310 (13) | Lu2—N15 | 2.852 (10) |
| C27—C28 | 1.399 (15) | Lu2—N16 | 2.912 (12) |
| C27—C32 | 1.436 (16) | N2—H2 | 0.9100 |
| C28—C29 | 1.389 (14) | N4—H4A | 0.9000 |
| C28—C52 | 1.482 (15) | N4—H4B | 0.9000 |
| C29—C30 | 1.408 (16) | N6—H6A | 0.8600 |
| C29—H29 | 0.9300 | N7—O5 | 1.258 (14) |
| C30—C31 | 1.378 (15) | N7—O4 | 1.263 (14) |
| C30—C33 | 1.500 (13) | N7—O3 | 1.277 (13) |
| C31—C32 | 1.425 (15) | N8—O8 | 1.191 (12) |
| C31—H31 | 0.9300 | N8—O6 | 1.257 (13) |
| C32—C34 | 1.453 (15) | N8—O7 | 1.298 (12) |
| C33—H33A | 0.9600 | N10—H10 | 0.9100 |
| C33—H33B | 0.9600 | N12—H12C | 0.9000 |
| C33—H33C | 0.9600 | N12—H12D | 0.9000 |
| C34—N11 | 1.260 (14) | N14—H14A | 0.8600 |
| C34—H34 | 0.9300 | N15—O13 | 1.209 (12) |
| C35—C36 | 1.472 (16) | N15—O12 | 1.239 (12) |
| C35—N11 | 1.483 (12) | N15—O11 | 1.271 (12) |
| C35—H35A | 0.9700 | N16—O16 | 1.234 (14) |
| C35—H35B | 0.9700 | N16—O15 | 1.265 (14) |
| C36—N10 | 1.462 (14) | N16—O14 | 1.271 (14) |
| C36—H36A | 0.9700 | N17—O19 | 1.224 (12) |
| C36—H36B | 0.9700 | N17—O17 | 1.241 (12) |
| C37—C38 | 1.476 (16) | N17—O18 | 1.275 (12) |
| C37—N10 | 1.508 (14) | N18—O20 | 1.194 (12) |
| C37—H37A | 0.9700 | N18—O21 | 1.211 (13) |
| C37—H37B | 0.9700 | N18—O22 | 1.234 (13) |
| C38—N9 | 1.489 (15) | O25—H25F | 0.8499 |
| C38—H38A | 0.9700 | O25—H25C | 0.8500 |
| C38—H38B | 0.9700 | O26—H26A | 0.8499 |
| C39—N9 | 1.309 (15) | O26—H26B | 0.8500 |
| | | |
| O1—C1—C6 | 123.7 (10) | N13—C52—C28 | 120.6 (9) |
| O1—C1—C2 | 121.7 (9) | N12—C52—C28 | 110.9 (9) |
| C6—C1—C2 | 114.6 (9) | N13—C52—H52 | 109.1 |
| C3—C2—C1 | 121.6 (10) | N12—C52—H52 | 109.1 |
| C3—C2—C26 | 117.9 (9) | C28—C52—H52 | 109.1 |
| C1—C2—C26 | 120.3 (9) | C54—C53—H53A | 109.5 |
| C4—C3—C2 | 121.3 (10) | C54—C53—H53B | 109.5 |
| C4—C3—H3 | 119.4 | H53A—C53—H53B | 109.5 |
| C2—C3—H3 | 119.4 | C54—C53—H53C | 109.5 |
| C5—C4—C3 | 118.0 (10) | H53A—C53—H53C | 109.5 |
| C5—C4—C7 | 123.1 (11) | H53B—C53—H53C | 109.5 |
| C3—C4—C7 | 118.9 (11) | C53—C54—O23 | 108.4 (16) |
| C4—C5—C6 | 125.2 (11) | C53—C54—H54A | 110.0 |
| C4—C5—H5 | 117.4 | O23—C54—H54A | 110.0 |
| C6—C5—H5 | 117.4 | C53—C54—H54B | 110.0 |
| C5—C6—C1 | 119.4 (10) | O23—C54—H54B | 110.0 |
| C5—C6—C8 | 119.6 (10) | H54A—C54—H54B | 108.4 |
| C1—C6—C8 | 120.5 (10) | O24—C55—O23 | 120.7 (18) |
| C4—C7—H7A | 109.5 | O24—C55—C56 | 130 (2) |
| C4—C7—H7B | 109.5 | O23—C55—C56 | 110 (2) |
| H7A—C7—H7B | 109.5 | C55—C56—H56A | 109.5 |
| C4—C7—H7C | 109.5 | C55—C56—H56B | 109.5 |
| H7A—C7—H7C | 109.5 | H56A—C56—H56B | 109.5 |
| H7B—C7—H7C | 109.5 | C55—C56—H56C | 109.5 |
| N1—C8—C6 | 129.8 (10) | H56A—C56—H56C | 109.5 |
| N1—C8—H8 | 115.1 | H56B—C56—H56C | 109.5 |
| C6—C8—H8 | 115.1 | O2—Lu1—O1 | 90.0 (3) |
| N1—C9—C10 | 108.9 (10) | O2—Lu1—O7 | 128.8 (3) |
| N1—C9—H9A | 109.9 | O1—Lu1—O7 | 78.1 (3) |
| C10—C9—H9A | 109.9 | O2—Lu1—O4 | 84.2 (3) |
| N1—C9—H9B | 109.9 | O1—Lu1—O4 | 124.0 (3) |
| C10—C9—H9B | 109.9 | O7—Lu1—O4 | 142.9 (3) |
| H9A—C9—H9B | 108.3 | O2—Lu1—N2 | 133.9 (3) |
| N2—C10—C9 | 107.8 (10) | O1—Lu1—N2 | 136.2 (3) |
| N2—C10—H10A | 110.1 | O7—Lu1—N2 | 73.0 (3) |
| C9—C10—H10A | 110.1 | O4—Lu1—N2 | 71.0 (3) |
| N2—C10—H10B | 110.1 | O2—Lu1—N3 | 74.7 (3) |
| C9—C10—H10B | 110.1 | O1—Lu1—N3 | 142.6 (3) |
| H10A—C10—H10B | 108.5 | O7—Lu1—N3 | 85.3 (3) |
| N2—C11—C12 | 108.1 (9) | O4—Lu1—N3 | 88.7 (3) |
| N2—C11—H11A | 110.1 | N2—Lu1—N3 | 66.7 (3) |
| C12—C11—H11A | 110.1 | O2—Lu1—N1 | 144.6 (3) |
| N2—C11—H11B | 110.1 | O1—Lu1—N1 | 75.1 (3) |
| C12—C11—H11B | 110.1 | O7—Lu1—N1 | 80.0 (3) |
| H11A—C11—H11B | 108.4 | O4—Lu1—N1 | 78.5 (3) |
| N3—C12—C11 | 110.3 (9) | N2—Lu1—N1 | 68.0 (3) |
| N3—C12—H12A | 109.6 | N3—Lu1—N1 | 134.7 (3) |
| C11—C12—H12A | 109.6 | O2—Lu1—O3 | 71.8 (3) |
| N3—C12—H12B | 109.6 | O1—Lu1—O3 | 73.8 (3) |
| C11—C12—H12B | 109.6 | O7—Lu1—O3 | 145.2 (3) |
| H12A—C12—H12B | 108.1 | O4—Lu1—O3 | 51.5 (3) |
| N3—C13—C14 | 129.0 (10) | N2—Lu1—O3 | 115.2 (3) |
| N3—C13—H13 | 115.5 | N3—Lu1—O3 | 129.5 (3) |
| C14—C13—H13 | 115.5 | N1—Lu1—O3 | 73.2 (3) |
| C15—C14—C19 | 120.0 | O2—Lu1—O6 | 78.1 (3) |
| C15—C14—C13 | 116.9 (6) | O1—Lu1—O6 | 70.2 (3) |
| C19—C14—C13 | 123.1 (6) | O7—Lu1—O6 | 50.9 (3) |
| C14—C15—C16 | 120.0 | O4—Lu1—O6 | 157.5 (3) |
| C14—C15—H15 | 120.0 | N2—Lu1—O6 | 112.3 (3) |
| C16—C15—H15 | 120.0 | N3—Lu1—O6 | 73.4 (3) |
| C17—C16—C15 | 120.0 | N1—Lu1—O6 | 123.8 (3) |
| C17—C16—C20 | 118.2 (8) | O3—Lu1—O6 | 132.4 (3) |
| C15—C16—C20 | 121.7 (8) | O2—Lu1—N7 | 78.1 (3) |
| C18—C17—C16 | 120.0 | O1—Lu1—N7 | 99.1 (3) |
| C18—C17—H17 | 120.0 | O7—Lu1—N7 | 152.6 (3) |
| C16—C17—H17 | 120.0 | O4—Lu1—N7 | 25.4 (3) |
| C19—C18—C17 | 120.0 | N2—Lu1—N7 | 92.2 (3) |
| C19—C18—C21 | 122.7 (7) | N3—Lu1—N7 | 110.4 (3) |
| C17—C18—C21 | 117.2 (7) | N1—Lu1—N7 | 73.0 (3) |
| O2—C19—C18 | 117.8 (6) | O3—Lu1—N7 | 26.2 (3) |
| O2—C19—C14 | 122.1 (6) | O6—Lu1—N7 | 153.8 (3) |
| C18—C19—C14 | 120.0 | O9—Lu2—O10 | 86.1 (3) |
| C16—C20—H20A | 109.5 | O9—Lu2—O11 | 82.6 (3) |
| C16—C20—H20B | 109.5 | O10—Lu2—O11 | 127.1 (3) |
| H20A—C20—H20B | 109.5 | O9—Lu2—N11 | 143.1 (3) |
| C16—C20—H20C | 109.5 | O10—Lu2—N11 | 75.0 (3) |
| H20A—C20—H20C | 109.5 | O11—Lu2—N11 | 84.1 (3) |
| H20B—C20—H20C | 109.5 | O9—Lu2—O15 | 125.9 (3) |
| N5—C21—N4 | 101.2 (10) | O10—Lu2—O15 | 81.4 (3) |
| N5—C21—C18 | 114.8 (11) | O11—Lu2—O15 | 143.7 (3) |
| N4—C21—C18 | 110.3 (11) | N11—Lu2—O15 | 82.7 (3) |
| N5—C21—H21 | 110.1 | O9—Lu2—N9 | 73.3 (3) |
| N4—C21—H21 | 110.1 | O10—Lu2—N9 | 145.6 (3) |
| C18—C21—H21 | 110.1 | O11—Lu2—N9 | 78.0 (3) |
| C23—C22—N4 | 104.4 (10) | N11—Lu2—N9 | 136.4 (3) |
| C23—C22—H22A | 110.9 | O15—Lu2—N9 | 88.7 (3) |
| N4—C22—H22A | 110.9 | O9—Lu2—N10 | 139.5 (3) |
| C23—C22—H22B | 110.9 | O10—Lu2—N10 | 134.3 (3) |
| N4—C22—H22B | 110.9 | O11—Lu2—N10 | 74.0 (3) |
| H22A—C22—H22B | 108.9 | N11—Lu2—N10 | 67.1 (3) |
| N5—C23—C22 | 101.8 (10) | O15—Lu2—N10 | 69.7 (3) |
| N5—C23—H23A | 111.4 | N9—Lu2—N10 | 69.9 (3) |
| C22—C23—H23A | 111.4 | O9—Lu2—O14 | 74.8 (3) |
| N5—C23—H23B | 111.4 | O10—Lu2—O14 | 71.9 (3) |
| C22—C23—H23B | 111.4 | O11—Lu2—O14 | 149.6 (3) |
| H23A—C23—H23B | 109.3 | N11—Lu2—O14 | 126.0 (3) |
| N5—C24—C25 | 110.0 (10) | O15—Lu2—O14 | 51.3 (3) |
| N5—C24—H24A | 109.7 | N9—Lu2—O14 | 76.2 (3) |
| C25—C24—H24A | 109.7 | N10—Lu2—O14 | 111.2 (3) |
| N5—C24—H24B | 109.7 | O9—Lu2—O12 | 72.6 (3) |
| C25—C24—H24B | 109.7 | O10—Lu2—O12 | 75.4 (3) |
| H24A—C24—H24B | 108.2 | O11—Lu2—O12 | 51.9 (3) |
| N6—C25—C24 | 109.2 (9) | N11—Lu2—O12 | 72.2 (3) |
| N6—C25—H25A | 109.8 | O15—Lu2—O12 | 149.3 (3) |
| C24—C25—H25A | 109.8 | N9—Lu2—O12 | 121.7 (3) |
| N6—C25—H25B | 109.8 | N10—Lu2—O12 | 114.0 (3) |
| C24—C25—H25B | 109.8 | O14—Lu2—O12 | 134.8 (3) |
| H25A—C25—H25B | 108.3 | O9—Lu2—N15 | 75.6 (3) |
| N6—C26—C2 | 123.6 (9) | O10—Lu2—N15 | 101.1 (3) |
| N6—C26—H26 | 118.2 | O11—Lu2—N15 | 26.1 (3) |
| C2—C26—H26 | 118.2 | N11—Lu2—N15 | 77.4 (3) |
| O10—C27—C28 | 120.0 (10) | O15—Lu2—N15 | 158.4 (3) |
| O10—C27—C32 | 121.8 (10) | N9—Lu2—N15 | 100.0 (3) |
| C28—C27—C32 | 118.2 (10) | N10—Lu2—N15 | 94.7 (3) |
| C29—C28—C27 | 120.2 (10) | O14—Lu2—N15 | 150.0 (3) |
| C29—C28—C52 | 118.9 (10) | O12—Lu2—N15 | 25.7 (3) |
| C27—C28—C52 | 120.6 (9) | O9—Lu2—N16 | 100.5 (3) |
| C28—C29—C30 | 123.7 (9) | O10—Lu2—N16 | 75.1 (3) |
| C28—C29—H29 | 118.2 | O11—Lu2—N16 | 157.7 (3) |
| C30—C29—H29 | 118.2 | N11—Lu2—N16 | 104.6 (3) |
| C31—C30—C29 | 115.5 (9) | O15—Lu2—N16 | 25.5 (3) |
| C31—C30—C33 | 121.8 (11) | N9—Lu2—N16 | 81.8 (3) |
| C29—C30—C33 | 122.3 (10) | N10—Lu2—N16 | 90.4 (4) |
| C30—C31—C32 | 123.6 (10) | O14—Lu2—N16 | 25.8 (3) |
| C30—C31—H31 | 118.2 | O12—Lu2—N16 | 150.2 (3) |
| C32—C31—H31 | 118.2 | N15—Lu2—N16 | 175.0 (3) |
| C31—C32—C27 | 118.5 (10) | C8—N1—C9 | 118.1 (9) |
| C31—C32—C34 | 117.8 (9) | C8—N1—Lu1 | 127.4 (7) |
| C27—C32—C34 | 123.6 (9) | C9—N1—Lu1 | 114.2 (7) |
| C30—C33—H33A | 109.5 | C10—N2—C11 | 110.5 (9) |
| C30—C33—H33B | 109.5 | C10—N2—Lu1 | 113.8 (7) |
| H33A—C33—H33B | 109.5 | C11—N2—Lu1 | 111.7 (7) |
| C30—C33—H33C | 109.5 | C10—N2—H2 | 106.8 |
| H33A—C33—H33C | 109.5 | C11—N2—H2 | 106.8 |
| H33B—C33—H33C | 109.5 | Lu1—N2—H2 | 106.8 |
| N11—C34—C32 | 126.3 (9) | C13—N3—C12 | 114.3 (10) |
| N11—C34—H34 | 116.8 | C13—N3—Lu1 | 127.1 (8) |
| C32—C34—H34 | 116.8 | C12—N3—Lu1 | 118.5 (7) |
| C36—C35—N11 | 110.8 (9) | C21—N4—C22 | 103.4 (11) |
| C36—C35—H35A | 109.5 | C21—N4—H4A | 111.1 |
| N11—C35—H35A | 109.5 | C22—N4—H4A | 111.1 |
| C36—C35—H35B | 109.5 | C21—N4—H4B | 111.1 |
| N11—C35—H35B | 109.5 | C22—N4—H4B | 111.1 |
| H35A—C35—H35B | 108.1 | H4A—N4—H4B | 109.0 |
| N10—C36—C35 | 107.2 (10) | C23—N5—C21 | 101.9 (10) |
| N10—C36—H36A | 110.3 | C23—N5—C24 | 121.6 (11) |
| C35—C36—H36A | 110.3 | C21—N5—C24 | 113.9 (9) |
| N10—C36—H36B | 110.3 | C26—N6—C25 | 121.0 (9) |
| C35—C36—H36B | 110.3 | C26—N6—H6A | 119.5 |
| H36A—C36—H36B | 108.5 | C25—N6—H6A | 119.5 |
| C38—C37—N10 | 111.6 (9) | O5—N7—O4 | 123.6 (11) |
| C38—C37—H37A | 109.3 | O5—N7—O3 | 119.9 (12) |
| N10—C37—H37A | 109.3 | O4—N7—O3 | 116.4 (10) |
| C38—C37—H37B | 109.3 | O5—N7—Lu1 | 175.4 (10) |
| N10—C37—H37B | 109.3 | O4—N7—Lu1 | 53.4 (5) |
| H37A—C37—H37B | 108.0 | O3—N7—Lu1 | 63.2 (6) |
| C37—C38—N9 | 106.4 (10) | O8—N8—O6 | 124.0 (11) |
| C37—C38—H38A | 110.5 | O8—N8—O7 | 121.6 (11) |
| N9—C38—H38A | 110.5 | O6—N8—O7 | 114.3 (9) |
| C37—C38—H38B | 110.5 | C39—N9—C38 | 115.4 (9) |
| N9—C38—H38B | 110.5 | C39—N9—Lu2 | 130.5 (7) |
| H38A—C38—H38B | 108.6 | C38—N9—Lu2 | 113.8 (7) |
| N9—C39—C40 | 125.8 (10) | C36—N10—C37 | 115.6 (9) |
| N9—C39—H39 | 117.1 | C36—N10—Lu2 | 112.6 (7) |
| C40—C39—H39 | 117.1 | C37—N10—Lu2 | 110.8 (6) |
| C39—C40—C41 | 117.2 (11) | C36—N10—H10 | 105.7 |
| C39—C40—C45 | 123.4 (11) | C37—N10—H10 | 105.7 |
| C41—C40—C45 | 119.4 (11) | Lu2—N10—H10 | 105.7 |
| C42—C41—C40 | 123.1 (11) | C34—N11—C35 | 116.4 (9) |
| C42—C41—H41 | 118.5 | C34—N11—Lu2 | 126.4 (7) |
| C40—C41—H41 | 118.5 | C35—N11—Lu2 | 117.1 (6) |
| C43—C42—C41 | 117.0 (10) | C52—N12—C51 | 110.1 (9) |
| C43—C42—C46 | 119.4 (12) | C52—N12—H12C | 109.6 |
| C41—C42—C46 | 123.6 (11) | C51—N12—H12C | 109.6 |
| C42—C43—C44 | 123.2 (11) | C52—N12—H12D | 109.6 |
| C42—C43—H43 | 118.4 | C51—N12—H12D | 109.6 |
| C44—C43—H43 | 118.4 | H12C—N12—H12D | 108.2 |
| C47—C44—C45 | 121.6 (10) | C50—N13—C49 | 112.9 (9) |
| C47—C44—C43 | 119.1 (11) | C50—N13—C52 | 103.7 (9) |
| C45—C44—C43 | 119.2 (10) | C49—N13—C52 | 115.1 (9) |
| O9—C45—C44 | 119.8 (9) | C47—N14—C48 | 126.7 (9) |
| O9—C45—C40 | 122.5 (9) | C47—N14—H14A | 116.6 |
| C44—C45—C40 | 117.6 (9) | C48—N14—H14A | 116.6 |
| C42—C46—H46A | 109.5 | O13—N15—O12 | 121.7 (11) |
| C42—C46—H46B | 109.5 | O13—N15—O11 | 120.2 (10) |
| H46A—C46—H46B | 109.5 | O12—N15—O11 | 118.1 (10) |
| C42—C46—H46C | 109.5 | O13—N15—Lu2 | 175.0 (8) |
| H46A—C46—H46C | 109.5 | O12—N15—Lu2 | 63.0 (6) |
| H46B—C46—H46C | 109.5 | O11—N15—Lu2 | 55.1 (5) |
| N14—C47—C44 | 122.6 (10) | O16—N16—O15 | 120.9 (12) |
| N14—C47—H47 | 118.7 | O16—N16—O14 | 122.3 (11) |
| C44—C47—H47 | 118.7 | O15—N16—O14 | 116.8 (11) |
| N14—C48—C49 | 109.9 (11) | O16—N16—Lu2 | 177.0 (9) |
| N14—C48—H48A | 109.7 | O15—N16—Lu2 | 56.3 (6) |
| C49—C48—H48A | 109.7 | O14—N16—Lu2 | 60.5 (6) |
| N14—C48—H48B | 109.7 | O19—N17—O17 | 122.7 (10) |
| C49—C48—H48B | 109.7 | O19—N17—O18 | 116.9 (10) |
| H48A—C48—H48B | 108.2 | O17—N17—O18 | 120.4 (10) |
| N13—C49—C48 | 111.8 (10) | O20—N18—O21 | 123.6 (11) |
| N13—C49—H49A | 109.3 | O20—N18—O22 | 115.3 (10) |
| C48—C49—H49A | 109.3 | O21—N18—O22 | 121.2 (10) |
| N13—C49—H49B | 109.3 | C1—O1—Lu1 | 142.3 (7) |
| C48—C49—H49B | 109.3 | C19—O2—Lu1 | 137.4 (6) |
| H49A—C49—H49B | 107.9 | N7—O3—Lu1 | 90.6 (7) |
| N13—C50—C51 | 101.5 (9) | N7—O4—Lu1 | 101.2 (7) |
| N13—C50—H50A | 111.5 | N8—O6—Lu1 | 92.2 (6) |
| C51—C50—H50A | 111.5 | N8—O7—Lu1 | 102.5 (7) |
| N13—C50—H50B | 111.5 | C45—O9—Lu2 | 141.6 (6) |
| C51—C50—H50B | 111.5 | C27—O10—Lu2 | 130.8 (7) |
| H50A—C50—H50B | 109.3 | N15—O11—Lu2 | 98.8 (6) |
| N12—C51—C50 | 101.3 (10) | N15—O12—Lu2 | 91.2 (6) |
| N12—C51—H51A | 111.5 | N16—O14—Lu2 | 93.7 (7) |
| C50—C51—H51A | 111.5 | N16—O15—Lu2 | 98.2 (8) |
| N12—C51—H51B | 111.5 | C55—O23—C54 | 120.3 (16) |
| C50—C51—H51B | 111.5 | H25F—O25—H25C | 109.5 |
| H51A—C51—H51B | 109.3 | H26A—O26—H26B | 109.5 |
| N13—C52—N12 | 97.4 (8) | | |
Hydrogen-bond geometry (Å, °) top
| D—H···A | D—H | H···A | D···A | D—H···A |
| N4—H4A···O2 | 0.90 | 2.07 | 2.765 (13) | 133 |
| N4—H4B···O22 | 0.90 | 1.94 | 2.826 (13) | 166 |
| N4—H4B···O20 | 0.90 | 2.45 | 3.108 (14) | 130 |
| N4—H4B···N18 | 0.90 | 2.59 | 3.435 (15) | 156 |
| N6—H6A···O1 | 0.86 | 1.99 | 2.635 (11) | 131 |
| N6—H6A···O6 | 0.86 | 2.63 | 3.407 (14) | 151 |
| N10—H10···O15 | 0.91 | 2.35 | 2.810 (13) | 111 |
| N12—H12D···O10 | 0.90 | 1.90 | 2.641 (12) | 138 |
| N14—H14A···O9 | 0.86 | 1.86 | 2.560 (10) | 137 |
| O25—H25F···O8 | 0.85 | 2.53 | 3.007 (19) | 116 |
| O25—H25C···O5i | 0.85 | 2.32 | 2.992 (19) | 137 |
| N2—H2···O19i | 0.91 | 2.08 | 2.959 (11) | 163 |
| N10—H10···O20ii | 0.91 | 2.24 | 3.112 (14) | 161 |
| N12—H12C···O18iii | 0.90 | 1.92 | 2.810 (13) | 170 |
| N12—H12C···O19iii | 0.90 | 2.53 | 3.126 (12) | 124 |
| N12—H12C···N17iii | 0.90 | 2.59 | 3.413 (14) | 152 |
| Symmetry codes: (i) x, −y+1, z+1/2; (ii) x−1/2, −y+1/2, z+1/2; (iii) x, y−1, z+1. |
Table 1
Hydrogen-bond geometry (Å, °) top
| D—H···A | D—H | H···A | D···A | D—H···A |
| N4—H4A···O2 | 0.90 | 2.07 | 2.765 (13) | 133 |
| N4—H4B···O22 | 0.90 | 1.94 | 2.826 (13) | 166 |
| N4—H4B···O20 | 0.90 | 2.45 | 3.108 (14) | 130 |
| N4—H4B···N18 | 0.90 | 2.59 | 3.435 (15) | 156 |
| N6—H6A···O1 | 0.86 | 1.99 | 2.635 (11) | 131 |
| N6—H6A···O6 | 0.86 | 2.63 | 3.407 (14) | 151 |
| N10—H10···O15 | 0.91 | 2.35 | 2.810 (13) | 111 |
| N12—H12D···O10 | 0.90 | 1.90 | 2.641 (12) | 138 |
| N14—H14A···O9 | 0.86 | 1.86 | 2.560 (10) | 137 |
| O25—H25F···O8 | 0.85 | 2.53 | 3.007 (19) | 116 |
| O25—H25C···O5i | 0.85 | 2.32 | 2.992 (19) | 137 |
| N2—H2···O19i | 0.91 | 2.08 | 2.959 (11) | 163 |
| N10—H10···O20ii | 0.91 | 2.24 | 3.112 (14) | 161 |
| N12—H12C···O18iii | 0.90 | 1.92 | 2.810 (13) | 170 |
| N12—H12C···O19iii | 0.90 | 2.53 | 3.126 (12) | 124 |
| N12—H12C···N17iii | 0.90 | 2.59 | 3.413 (14) | 152 |
| Symmetry codes: (i) x, −y+1, z+1/2; (ii) x−1/2, −y+1/2, z+1/2; (iii) x, y−1, z+1. |
This work was supported by the Education Office of Hubei Province, China (grant
No. D200515004), and Hubei Key Laboratory of Novel Chemical Reactor and Green
Chemical Technology, Wuhan Institute of Technology, China (grant No.
RCT2004007).
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Lanthanide macrocyclic complexes are of particular interest because they have many possible applications in biological systems, material science and chemical processes (Alexander, 1995). Our research is focused on the syntheses, crystal structures and properties of lanthanide(III) complexes with macrocyclic Schiff bases (Hu et al., 2003; Hu et al., 2004). Recently, we have reported the crystal structure of a gadolinium(III) complex with the macrocyclic ligand dervided from 2,6-diformyl-4-methylphenol and 1,5-diamino-3-azapentane ([Gd(III)(C26H34N6O2)(NO3)2]+.(NO3)-.H20), in which the central ion is nine-coordinate, being bound to five donor atoms from the cyclic polydentate ligand and to four O atoms of two bidentae nitrates (Hu et al., 2007). As a part of a continuing study, herein we report a new lutecium analogue [Lu(III)(C26H34N6O2)(NO3)2]+. (NO3)-. 0.5H20. 0.25CH3COOC2H5 (I), but which is a different solvate, belonging to a different space group (space group Cc, compared with C2/c).
In the asymmetric unit (Fig. 1), there are two molecules of the title complex (I) which exhibit a similar coordinate geometry with the previous complex (Hu et al., 2007)(Fig. 2). Lu1 is encapsulated within the macrocyclic ligand which provided five donor atoms (the two O atoms O1,O2 from the phenolates and the three N atoms N1, N2, N3 from one end of the macrocycle). The ninefold coordination is completed around Lu1 by two bidentate nitrates which locate on the opposite sides of the bisphenoidal positions. The third nitrate is ionic. At the free end of the macrocycle, a five-membered imidazole rings is formed. The coordination polyhedron can be described as a distorted tricapped trigonal prism in which N2, O3 and O6 are located at capped sites, as shown in Fig.2. When the phenol oxygen atoms coordinate to the lanthanide ion, the phenol H atoms dissociate and are transferred to the neigbouring imidazole nitrogen to give a zwitterionic structure. This proton transfer has been conformed by NMR study of the tetraiminodiphenol analogue (Spodine et al., 2000).