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The molecule of the title compound, C48H60N4O12, is located on a crystallographic twofold rotation axis. It is found in the typical pinched cone conformation. The dihedral angles between the reference plane (defined by the C atoms of the methylene bridges) and the benzene rings are 83.33 (6) and 141.61 (5)°.
Supporting information
CCDC reference: 287662
Key indicators
- Single-crystal X-ray study
- T = 173 K
- Mean (C-C) = 0.005 Å
- R factor = 0.082
- wR factor = 0.247
- Data-to-parameter ratio = 16.8
checkCIF/PLATON results
No syntax errors found
Alert level A
PLAT220_ALERT_2_A Large Non-Solvent C Ueq(max)/Ueq(min) ... 5.71 Ratio
| Author Response: The pentyl chain is slightly disordered.
|
PLAT222_ALERT_3_A Large Non-Solvent H Ueq(max)/Ueq(min) ... 5.11 Ratio
| Author Response: The pentyl chain is slightly disordered.
|
PLAT241_ALERT_2_A Check High Ueq as Compared to Neighbors for C224
| Author Response: The atom shows an elongated ellipsoid which is a sign of disorder,
but refining it on two split positions, did not improve the refinement.
|
PLAT242_ALERT_2_A Check Low Ueq as Compared to Neighbors for C223
| Author Response: This happens because the displacement parameter of C224 bigger than
usual.
|
Alert level B
DIFMN02_ALERT_2_B The minimum difference density is < -0.1*ZMAX*1.00
_refine_diff_density_min given = -0.872
Test value = -0.800
PLAT098_ALERT_2_B Minimum (Negative) Residual Density ............ -0.87 e/A 3
PLAT230_ALERT_2_B Hirshfeld Test Diff for C223 - C224 .. 7.59 su
PLAT360_ALERT_2_B Short C(sp3)-C(sp3) Bond C223 - C224 ... 1.27 Ang.
Alert level C
DIFMN03_ALERT_1_C The minimum difference density is < -0.1*ZMAX*0.75
The relevant atom site should be identified.
DIFMX01_ALERT_2_C The maximum difference density is > 0.1*ZMAX*0.75
_refine_diff_density_max given = 0.714
Test value = 0.600
DIFMX02_ALERT_1_C The maximum difference density is > 0.1*ZMAX*0.75
The relevant atom site should be identified.
PLAT097_ALERT_2_C Maximum (Positive) Residual Density ............ 0.71 e/A 3
PLAT213_ALERT_2_C Atom C224 has ADP max/min Ratio ............. 3.30 prolat
PLAT242_ALERT_2_C Check Low Ueq as Compared to Neighbors for C123
| Author Response: This happens because the displacement parameter of C224 bigger than
usual.
|
PLAT340_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ... 5
PLAT360_ALERT_2_C Short C(sp3)-C(sp3) Bond C221 - C222 ... 1.41 Ang.
PLAT410_ALERT_2_C Short Intra H...H Contact H1A .. H22B .. 1.97 Ang.
4 ALERT level A = In general: serious problem
4 ALERT level B = Potentially serious problem
9 ALERT level C = Check and explain
0 ALERT level G = General alerts; check
2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
13 ALERT type 2 Indicator that the structure model may be wrong or deficient
2 ALERT type 3 Indicator that the structure quality may be low
0 ALERT type 4 Improvement, methodology, query or suggestion
The title compound was synthesized according to Jakobi et al. (1996). The single crystals were obtained by slow evaporation from a solution in chloroform/methanol.
Although the displacement ellipsoids of some atoms of the pentyl chains are rather large, the structure was refined without employing a disorder model because the current model does not show any significant peak in the final difference map (the highest peak is 0.714 e− Å−3). Furthermore, a disorder model did not refine satisfactorily, because several restraints had been necessary to drive the geometric parameters to sensible values and some atoms had to be refined isotropically to prevent them from going non-positive definite. H atoms were located in a difference electron-density map, but refined with fixed individual displacement parameters [Uiso(H) = 1.2Ueq(C) or 1.5 Ueq(methyl C)] using a riding model with C—H distances ranging from 0.95 to 0.99 Å.
Data collection: X-AREA (Stoe & Cie, 2001); cell refinement: X-AREA; data reduction: X-AREA; program(s) used to solve structure: SHELXS97 (Sheldrick, 1990); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: XP in SHELXTL-Plus (Sheldrick, 1991) and Mercury (Version 1.4; Bruno et al., 2002); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2003).
5,11,17,23-Tetranitro-25,26,27,28-tetrapentyloxycalix[4]arene
top
Crystal data top
C48H60N4O12 | F(000) = 1888 |
Mr = 885.00 | Dx = 1.231 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 31383 reflections |
a = 22.5587 (11) Å | θ = 1.9–25.2° |
b = 11.8751 (4) Å | µ = 0.09 mm−1 |
c = 19.2336 (11) Å | T = 173 K |
β = 112.057 (4)° | Block, light yellow |
V = 4775.3 (4) Å3 | 0.38 × 0.35 × 0.29 mm |
Z = 4 | |
Data collection top
Stoe IPDS-II two-circle diffractometer | 3906 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.065 |
Graphite monochromator | θmax = 26.4°, θmin = 2.0° |
ω scans | h = −28→28 |
39302 measured reflections | k = −14→14 |
4859 independent reflections | l = −23→23 |
Refinement top
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.082 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.247 | H-atom parameters constrained |
S = 1.07 | w = 1/[σ2(Fo2) + (0.1304P)2 + 6.4471P] where P = (Fo2 + 2Fc2)/3 |
4859 reflections | (Δ/σ)max < 0.001 |
289 parameters | Δρmax = 0.71 e Å−3 |
0 restraints | Δρmin = −0.87 e Å−3 |
Crystal data top
C48H60N4O12 | V = 4775.3 (4) Å3 |
Mr = 885.00 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 22.5587 (11) Å | µ = 0.09 mm−1 |
b = 11.8751 (4) Å | T = 173 K |
c = 19.2336 (11) Å | 0.38 × 0.35 × 0.29 mm |
β = 112.057 (4)° | |
Data collection top
Stoe IPDS-II two-circle diffractometer | 3906 reflections with I > 2σ(I) |
39302 measured reflections | Rint = 0.065 |
4859 independent reflections | |
Refinement top
R[F2 > 2σ(F2)] = 0.082 | 0 restraints |
wR(F2) = 0.247 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.71 e Å−3 |
4859 reflections | Δρmin = −0.87 e Å−3 |
289 parameters | |
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 | |
C1 | 0.32765 (12) | 0.1913 (3) | 0.67257 (16) | 0.0509 (6) | |
H1A | 0.3291 | 0.2734 | 0.6646 | 0.061* | |
H1B | 0.2835 | 0.1649 | 0.6444 | 0.061* | |
C11 | 0.37390 (11) | 0.1311 (2) | 0.64399 (14) | 0.0445 (6) | |
C12 | 0.41166 (11) | 0.1901 (2) | 0.61240 (13) | 0.0435 (6) | |
C13 | 0.45786 (11) | 0.1359 (2) | 0.59221 (13) | 0.0417 (5) | |
C14 | 0.46319 (12) | 0.0192 (2) | 0.59983 (14) | 0.0464 (6) | |
H14 | 0.4936 | −0.0202 | 0.5857 | 0.056* | |
C15 | 0.42435 (13) | −0.0385 (2) | 0.62775 (15) | 0.0498 (6) | |
C16 | 0.38093 (13) | 0.0154 (2) | 0.65177 (15) | 0.0505 (6) | |
H16 | 0.3563 | −0.0266 | 0.6733 | 0.061* | |
O12 | 0.40590 (8) | 0.30550 (15) | 0.60494 (11) | 0.0500 (5) | |
C121 | 0.35507 (14) | 0.3428 (3) | 0.53705 (17) | 0.0618 (8) | |
H12A | 0.3130 | 0.3195 | 0.5373 | 0.074* | |
H12B | 0.3603 | 0.3094 | 0.4925 | 0.074* | |
C122 | 0.35903 (16) | 0.4697 (3) | 0.5347 (2) | 0.0676 (9) | |
H12C | 0.4014 | 0.4916 | 0.5348 | 0.081* | |
H12D | 0.3550 | 0.5016 | 0.5803 | 0.081* | |
C123 | 0.30686 (16) | 0.5185 (3) | 0.4656 (2) | 0.0777 (11) | |
H12E | 0.3093 | 0.4820 | 0.4204 | 0.093* | |
H12F | 0.2647 | 0.4998 | 0.4674 | 0.093* | |
C124 | 0.3111 (2) | 0.6451 (4) | 0.4579 (4) | 0.121 (2) | |
H12G | 0.3069 | 0.6820 | 0.5020 | 0.145* | |
H12H | 0.3537 | 0.6643 | 0.4577 | 0.145* | |
C125 | 0.2608 (3) | 0.6902 (6) | 0.3882 (5) | 0.183 (4) | |
H12I | 0.2659 | 0.7719 | 0.3858 | 0.275* | |
H12J | 0.2184 | 0.6735 | 0.3887 | 0.275* | |
H12K | 0.2650 | 0.6548 | 0.3442 | 0.275* | |
N15 | 0.42950 (14) | −0.1620 (2) | 0.63294 (17) | 0.0670 (7) | |
O151 | 0.40652 (19) | −0.2114 (2) | 0.6721 (2) | 0.1086 (12) | |
O152 | 0.45627 (15) | −0.2101 (2) | 0.59706 (17) | 0.0847 (8) | |
C2 | 0.50429 (12) | 0.2003 (2) | 0.56618 (15) | 0.0476 (6) | |
H2A | 0.4970 | 0.1799 | 0.5137 | 0.057* | |
H2B | 0.4972 | 0.2823 | 0.5682 | 0.057* | |
C21 | 0.57228 (12) | 0.1709 (2) | 0.61694 (14) | 0.0431 (6) | |
C22 | 0.59615 (11) | 0.2081 (2) | 0.69183 (15) | 0.0421 (6) | |
C23 | 0.65393 (11) | 0.1671 (2) | 0.74445 (15) | 0.0452 (6) | |
C24 | 0.69011 (12) | 0.0951 (2) | 0.71960 (16) | 0.0487 (6) | |
H24 | 0.7298 | 0.0671 | 0.7538 | 0.058* | |
C25 | 0.66815 (12) | 0.0642 (2) | 0.64445 (16) | 0.0479 (6) | |
C26 | 0.60950 (13) | 0.0996 (2) | 0.59307 (15) | 0.0471 (6) | |
H26 | 0.5951 | 0.0754 | 0.5423 | 0.057* | |
O22 | 0.55846 (8) | 0.27841 (15) | 0.71432 (11) | 0.0489 (5) | |
C221 | 0.58061 (18) | 0.3928 (3) | 0.7330 (2) | 0.0767 (10) | |
H22A | 0.5601 | 0.4252 | 0.7658 | 0.092* | |
H22B | 0.6274 | 0.3917 | 0.7618 | 0.092* | |
C222 | 0.5676 (3) | 0.4632 (3) | 0.6696 (3) | 0.0917 (13) | |
H22C | 0.5209 | 0.4635 | 0.6405 | 0.110* | |
H22D | 0.5886 | 0.4313 | 0.6372 | 0.110* | |
C223 | 0.5905 (3) | 0.5854 (3) | 0.6897 (3) | 0.0910 (13) | |
H22E | 0.5594 | 0.6220 | 0.7076 | 0.109* | |
H22F | 0.6315 | 0.5814 | 0.7334 | 0.109* | |
C224 | 0.5992 (6) | 0.6525 (5) | 0.6433 (7) | 0.238 (6) | |
H22G | 0.5576 | 0.6584 | 0.6006 | 0.286* | |
H22H | 0.6287 | 0.6140 | 0.6238 | 0.286* | |
C225 | 0.6240 (3) | 0.7722 (4) | 0.6620 (4) | 0.1162 (18) | |
H22I | 0.6253 | 0.8086 | 0.6168 | 0.174* | |
H22J | 0.6672 | 0.7705 | 0.7008 | 0.174* | |
H22K | 0.5956 | 0.8147 | 0.6804 | 0.174* | |
N25 | 0.70763 (12) | −0.0104 (2) | 0.61853 (16) | 0.0589 (6) | |
O251 | 0.68793 (13) | −0.0370 (2) | 0.55225 (14) | 0.0816 (8) | |
O252 | 0.75841 (11) | −0.0432 (2) | 0.66435 (15) | 0.0807 (8) | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
C1 | 0.0357 (12) | 0.0598 (16) | 0.0562 (15) | 0.0079 (11) | 0.0161 (11) | 0.0108 (12) |
C11 | 0.0341 (11) | 0.0521 (14) | 0.0424 (12) | 0.0024 (10) | 0.0085 (10) | 0.0058 (10) |
C12 | 0.0367 (12) | 0.0459 (14) | 0.0413 (12) | 0.0029 (10) | 0.0071 (10) | 0.0058 (10) |
C13 | 0.0386 (12) | 0.0459 (13) | 0.0362 (11) | −0.0004 (10) | 0.0089 (9) | 0.0036 (10) |
C14 | 0.0461 (13) | 0.0467 (14) | 0.0454 (13) | 0.0017 (11) | 0.0161 (11) | −0.0008 (10) |
C15 | 0.0528 (14) | 0.0447 (14) | 0.0510 (14) | −0.0006 (11) | 0.0183 (12) | 0.0033 (11) |
C16 | 0.0478 (14) | 0.0532 (15) | 0.0509 (14) | −0.0017 (11) | 0.0190 (12) | 0.0071 (12) |
O12 | 0.0439 (9) | 0.0456 (10) | 0.0565 (11) | 0.0089 (8) | 0.0142 (8) | 0.0127 (8) |
C121 | 0.0536 (16) | 0.0645 (19) | 0.0586 (17) | 0.0106 (14) | 0.0113 (13) | 0.0227 (14) |
C122 | 0.0585 (17) | 0.0594 (19) | 0.078 (2) | 0.0069 (14) | 0.0179 (16) | 0.0184 (16) |
C123 | 0.0575 (18) | 0.074 (2) | 0.092 (2) | 0.0012 (16) | 0.0176 (18) | 0.0384 (19) |
C124 | 0.077 (3) | 0.081 (3) | 0.170 (5) | −0.014 (2) | 0.008 (3) | 0.063 (3) |
C125 | 0.103 (4) | 0.140 (5) | 0.247 (8) | −0.021 (4) | −0.004 (5) | 0.132 (6) |
N15 | 0.0801 (18) | 0.0478 (14) | 0.0839 (19) | 0.0009 (13) | 0.0429 (16) | 0.0094 (13) |
O151 | 0.153 (3) | 0.0590 (15) | 0.160 (3) | 0.0089 (16) | 0.111 (3) | 0.0289 (17) |
O152 | 0.114 (2) | 0.0500 (13) | 0.113 (2) | 0.0026 (13) | 0.0684 (18) | −0.0037 (13) |
C2 | 0.0448 (13) | 0.0487 (14) | 0.0510 (14) | 0.0028 (11) | 0.0199 (11) | 0.0083 (11) |
C21 | 0.0414 (12) | 0.0390 (12) | 0.0524 (14) | −0.0024 (10) | 0.0215 (11) | 0.0051 (10) |
C22 | 0.0377 (12) | 0.0353 (12) | 0.0568 (14) | −0.0056 (9) | 0.0218 (11) | −0.0026 (10) |
C23 | 0.0373 (12) | 0.0438 (13) | 0.0567 (14) | −0.0083 (10) | 0.0200 (11) | −0.0030 (11) |
C24 | 0.0375 (12) | 0.0487 (15) | 0.0610 (16) | 0.0001 (10) | 0.0198 (11) | 0.0012 (12) |
C25 | 0.0447 (13) | 0.0436 (14) | 0.0608 (16) | 0.0014 (11) | 0.0260 (12) | −0.0025 (11) |
C26 | 0.0479 (13) | 0.0457 (14) | 0.0518 (14) | −0.0040 (11) | 0.0233 (11) | −0.0015 (11) |
O22 | 0.0423 (9) | 0.0418 (10) | 0.0627 (11) | −0.0001 (7) | 0.0199 (8) | −0.0094 (8) |
C221 | 0.072 (2) | 0.0505 (18) | 0.096 (3) | 0.0002 (15) | 0.0189 (19) | −0.0095 (17) |
C222 | 0.124 (4) | 0.064 (2) | 0.116 (3) | 0.004 (2) | 0.078 (3) | 0.001 (2) |
C223 | 0.124 (4) | 0.058 (2) | 0.099 (3) | −0.014 (2) | 0.051 (3) | −0.006 (2) |
C224 | 0.367 (13) | 0.056 (3) | 0.461 (16) | −0.033 (5) | 0.349 (14) | −0.028 (5) |
C225 | 0.147 (5) | 0.058 (2) | 0.167 (5) | −0.024 (3) | 0.085 (4) | 0.005 (3) |
N25 | 0.0522 (14) | 0.0556 (14) | 0.0735 (17) | 0.0046 (11) | 0.0288 (13) | −0.0062 (12) |
O251 | 0.0786 (16) | 0.101 (2) | 0.0718 (15) | 0.0199 (14) | 0.0356 (13) | −0.0180 (13) |
O252 | 0.0576 (13) | 0.0856 (17) | 0.0925 (17) | 0.0249 (12) | 0.0207 (13) | −0.0158 (14) |
Geometric parameters (Å, º) top
C1—C23i | 1.518 (4) | C2—C21 | 1.517 (4) |
C1—C11 | 1.527 (4) | C2—H2A | 0.9900 |
C1—H1A | 0.9900 | C2—H2B | 0.9900 |
C1—H1B | 0.9900 | C21—C26 | 1.386 (4) |
C11—C16 | 1.385 (4) | C21—C22 | 1.406 (4) |
C11—C12 | 1.405 (4) | C22—O22 | 1.373 (3) |
C12—O12 | 1.379 (3) | C22—C23 | 1.403 (4) |
C12—C13 | 1.399 (4) | C23—C24 | 1.385 (4) |
C13—C14 | 1.393 (4) | C23—C1i | 1.518 (4) |
C13—C2 | 1.525 (3) | C24—C25 | 1.390 (4) |
C14—C15 | 1.371 (4) | C24—H24 | 0.9500 |
C14—H14 | 0.9500 | C25—C26 | 1.386 (4) |
C15—C16 | 1.386 (4) | C25—N25 | 1.469 (3) |
C15—N15 | 1.472 (4) | C26—H26 | 0.9500 |
C16—H16 | 0.9500 | O22—C221 | 1.445 (4) |
O12—C121 | 1.446 (3) | C221—C222 | 1.414 (6) |
C121—C122 | 1.511 (5) | C221—H22A | 0.9900 |
C121—H12A | 0.9900 | C221—H22B | 0.9900 |
C121—H12B | 0.9900 | C222—C223 | 1.541 (6) |
C122—C123 | 1.522 (4) | C222—H22C | 0.9900 |
C122—H12C | 0.9900 | C222—H22D | 0.9900 |
C122—H12D | 0.9900 | C223—C224 | 1.267 (8) |
C123—C124 | 1.517 (6) | C223—H22E | 0.9900 |
C123—H12E | 0.9900 | C223—H22F | 0.9900 |
C123—H12F | 0.9900 | C224—C225 | 1.521 (7) |
C124—C125 | 1.493 (7) | C224—H22G | 0.9900 |
C124—H12G | 0.9900 | C224—H22H | 0.9900 |
C124—H12H | 0.9900 | C225—H22I | 0.9800 |
C125—H12I | 0.9800 | C225—H22J | 0.9800 |
C125—H12J | 0.9800 | C225—H22K | 0.9800 |
C125—H12K | 0.9800 | N25—O252 | 1.217 (3) |
N15—O151 | 1.214 (4) | N25—O251 | 1.223 (3) |
N15—O152 | 1.216 (4) | | |
| | | |
C23i—C1—C11 | 109.6 (2) | C21—C2—C13 | 109.0 (2) |
C23i—C1—H1A | 109.7 | C21—C2—H2A | 109.9 |
C11—C1—H1A | 109.7 | C13—C2—H2A | 109.9 |
C23i—C1—H1B | 109.8 | C21—C2—H2B | 109.9 |
C11—C1—H1B | 109.7 | C13—C2—H2B | 109.9 |
H1A—C1—H1B | 108.2 | H2A—C2—H2B | 108.3 |
C16—C11—C12 | 118.6 (2) | C26—C21—C22 | 119.0 (2) |
C16—C11—C1 | 119.4 (2) | C26—C21—C2 | 121.3 (2) |
C12—C11—C1 | 121.9 (2) | C22—C21—C2 | 119.5 (2) |
O12—C12—C13 | 118.6 (2) | O22—C22—C23 | 120.1 (2) |
O12—C12—C11 | 119.5 (2) | O22—C22—C21 | 118.0 (2) |
C13—C12—C11 | 121.8 (2) | C23—C22—C21 | 121.6 (2) |
C14—C13—C12 | 118.2 (2) | C24—C23—C22 | 118.2 (2) |
C14—C13—C2 | 119.4 (2) | C24—C23—C1i | 121.0 (2) |
C12—C13—C2 | 122.4 (2) | C22—C23—C1i | 120.4 (2) |
C15—C14—C13 | 119.7 (2) | C23—C24—C25 | 119.7 (2) |
C15—C14—H14 | 120.1 | C23—C24—H24 | 120.1 |
C13—C14—H14 | 120.1 | C25—C24—H24 | 120.1 |
C14—C15—C16 | 122.4 (3) | C26—C25—C24 | 122.2 (2) |
C14—C15—N15 | 118.6 (3) | C26—C25—N25 | 118.6 (2) |
C16—C15—N15 | 119.0 (2) | C24—C25—N25 | 119.2 (2) |
C11—C16—C15 | 119.2 (2) | C25—C26—C21 | 118.9 (2) |
C11—C16—H16 | 120.4 | C25—C26—H26 | 120.5 |
C15—C16—H16 | 120.4 | C21—C26—H26 | 120.5 |
C12—O12—C121 | 114.2 (2) | C22—O22—C221 | 116.9 (2) |
O12—C121—C122 | 107.2 (3) | C222—C221—O22 | 113.6 (3) |
O12—C121—H12A | 110.3 | C222—C221—H22A | 108.8 |
C122—C121—H12A | 110.3 | O22—C221—H22A | 108.8 |
O12—C121—H12B | 110.3 | C222—C221—H22B | 108.8 |
C122—C121—H12B | 110.3 | O22—C221—H22B | 108.8 |
H12A—C121—H12B | 108.5 | H22A—C221—H22B | 107.7 |
C121—C122—C123 | 111.8 (3) | C221—C222—C223 | 113.5 (4) |
C121—C122—H12C | 109.3 | C221—C222—H22C | 108.9 |
C123—C122—H12C | 109.3 | C223—C222—H22C | 108.9 |
C121—C122—H12D | 109.3 | C221—C222—H22D | 108.9 |
C123—C122—H12D | 109.3 | C223—C222—H22D | 108.9 |
H12C—C122—H12D | 107.9 | H22C—C222—H22D | 107.7 |
C124—C123—C122 | 114.0 (3) | C224—C223—C222 | 122.8 (6) |
C124—C123—H12E | 108.8 | C224—C223—H22E | 106.6 |
C122—C123—H12E | 108.8 | C222—C223—H22E | 106.6 |
C124—C123—H12F | 108.8 | C224—C223—H22F | 106.6 |
C122—C123—H12F | 108.8 | C222—C223—H22F | 106.6 |
H12E—C123—H12F | 107.7 | H22E—C223—H22F | 106.6 |
C125—C124—C123 | 112.9 (5) | C223—C224—C225 | 124.2 (9) |
C125—C124—H12G | 109.0 | C223—C224—H22G | 106.3 |
C123—C124—H12G | 109.0 | C225—C224—H22G | 106.3 |
C125—C124—H12H | 109.0 | C223—C224—H22H | 106.3 |
C123—C124—H12H | 109.0 | C225—C224—H22H | 106.3 |
H12G—C124—H12H | 107.8 | H22G—C224—H22H | 106.4 |
C124—C125—H12I | 109.5 | C224—C225—H22I | 109.5 |
C124—C125—H12J | 109.5 | C224—C225—H22J | 109.5 |
H12I—C125—H12J | 109.5 | H22I—C225—H22J | 109.5 |
C124—C125—H12K | 109.5 | C224—C225—H22K | 109.5 |
H12I—C125—H12K | 109.5 | H22I—C225—H22K | 109.5 |
H12J—C125—H12K | 109.5 | H22J—C225—H22K | 109.5 |
O151—N15—O152 | 123.0 (3) | O252—N25—O251 | 123.1 (3) |
O151—N15—C15 | 118.8 (3) | O252—N25—C25 | 118.2 (3) |
O152—N15—C15 | 118.2 (3) | O251—N25—C25 | 118.7 (2) |
| | | |
C23i—C1—C11—C16 | 57.5 (3) | C12—C13—C2—C21 | 122.7 (2) |
C23i—C1—C11—C12 | −120.1 (3) | C13—C2—C21—C26 | 105.0 (3) |
C22i—C23i—C1—C11 | 66.6 (3) | C13—C2—C21—C22 | −69.1 (3) |
C16—C11—C12—O12 | −179.3 (2) | C26—C21—C22—O22 | −179.9 (2) |
C1—C11—C12—O12 | −1.7 (3) | C2—C21—C22—O22 | −5.6 (3) |
C16—C11—C12—C13 | −3.1 (4) | C26—C21—C22—C23 | −5.8 (4) |
C1—C11—C12—C13 | 174.4 (2) | C2—C21—C22—C23 | 168.5 (2) |
O12—C12—C13—C14 | −179.9 (2) | O22—C22—C23—C24 | 179.2 (2) |
C11—C12—C13—C14 | 3.9 (3) | C21—C22—C23—C24 | 5.2 (4) |
O12—C12—C13—C2 | 3.3 (3) | O22—C22—C23—C1i | 5.6 (4) |
C11—C12—C13—C2 | −172.9 (2) | C21—C22—C23—C1i | −168.4 (2) |
C12—C13—C14—C15 | −1.1 (4) | C22—C23—C24—C25 | −1.1 (4) |
C2—C13—C14—C15 | 175.8 (2) | C1i—C23—C24—C25 | 172.5 (2) |
C13—C14—C15—C16 | −2.5 (4) | C23—C24—C25—C26 | −2.4 (4) |
C13—C14—C15—N15 | 178.0 (2) | C23—C24—C25—N25 | 178.8 (2) |
C12—C11—C16—C15 | −0.5 (4) | C24—C25—C26—C21 | 1.8 (4) |
C1—C11—C16—C15 | −178.1 (2) | N25—C25—C26—C21 | −179.3 (2) |
C14—C15—C16—C11 | 3.4 (4) | C22—C21—C26—C25 | 2.2 (4) |
N15—C15—C16—C11 | −177.2 (3) | C2—C21—C26—C25 | −172.0 (2) |
C13—C12—O12—C121 | 98.2 (3) | C23—C22—O22—C221 | 73.3 (3) |
C11—C12—O12—C121 | −85.5 (3) | C21—C22—O22—C221 | −112.4 (3) |
C12—O12—C121—C122 | −175.4 (2) | C22—O22—C221—C222 | 80.1 (4) |
O12—C121—C122—C123 | −179.3 (3) | O22—C221—C222—C223 | 179.3 (3) |
C121—C122—C123—C124 | −176.4 (4) | C221—C222—C223—C224 | 160.5 (7) |
C122—C123—C124—C125 | 178.0 (5) | C222—C223—C224—C225 | −177.7 (7) |
C14—C15—N15—O151 | 163.8 (3) | C26—C25—N25—O252 | −178.4 (3) |
C16—C15—N15—O151 | −15.7 (5) | C24—C25—N25—O252 | 0.5 (4) |
C14—C15—N15—O152 | −16.8 (4) | C26—C25—N25—O251 | 1.3 (4) |
C16—C15—N15—O152 | 163.7 (3) | C24—C25—N25—O251 | −179.8 (3) |
C14—C13—C2—C21 | −54.1 (3) | | |
Symmetry code: (i) −x+1, y, −z+3/2. |
Experimental details
Crystal data |
Chemical formula | C48H60N4O12 |
Mr | 885.00 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 173 |
a, b, c (Å) | 22.5587 (11), 11.8751 (4), 19.2336 (11) |
β (°) | 112.057 (4) |
V (Å3) | 4775.3 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.38 × 0.35 × 0.29 |
|
Data collection |
Diffractometer | Stoe IPDS-II two-circle diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 39302, 4859, 3906 |
Rint | 0.065 |
(sin θ/λ)max (Å−1) | 0.625 |
|
Refinement |
R[F2 > 2σ(F2)], wR(F2), S | 0.082, 0.247, 1.07 |
No. of reflections | 4859 |
No. of parameters | 289 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.71, −0.87 |
Selected torsion angles (º) topC23i—C1—C11—C12 | −120.1 (3) | C12—C13—C2—C21 | 122.7 (2) |
C22i—C23i—C1—C11 | 66.6 (3) | C13—C2—C21—C22 | −69.1 (3) |
Symmetry code: (i) −x+1, y, −z+3/2. |
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5,11,17,23-Tetranitro-25,26,27,28-tetrapentyloxycalix[4]arene, (I), was prepared by ipso-nitration of the corresponding tetrapentyloxycalix[4]arene with four tert-butyl groups at the wide rim (Jakobi et al., 1996). It can be easily reduced to the tetraamino derivative, (II) (see scheme) (Jakobi et al., 1996), the starting material for the synthesis of various derivatives, e.g. tetra-CMPO and tetraurea-calix[4]arenes CMPO (carbamoylmethylphosphineoxide) calix[4]arenes are highly efficient extractants for lanthanides and actinides (Arnaud-Neu et al., 1996); tetraurea-calix[4]arenes are able to form hydrogen-bonded dimeric capsules in apolar aprotic solvents (Rebek, 2000) via self-assembly. Both areas have been intensively studied during the last decade.
A perspective view of the title compound is shown in Fig. 1. Bond lengths and angles can be regarded as normal (Cambridge Strructural Database, Version 1.6 plus three updates; Mogul Version 1.0; Allen, 2002).
The molecule adopts the typical pinched cone conformation of tetraether derivatives. The reference plane of the calixarene, defined as the mean plane of the bridging C atoms [here C1, C2, C1i and C2i; symmetry code: (i) 1 − x, y, 3/2 − z], is almost planar (r.m.s. deviation = 0.0536 Å); the rings C11–C16 and C21–C26 subtend angles of 83.33 (6) and 141.61 (5)°, respectively, with this plane. Thus, the former rings are slightly bent inwards, whereas the others are clearly bent outwards. The rings C11–C16 and C11i–C16i are almost coplanar [13.34 (14)°], whereas the other two are almost perpendicular to each other [75.94 (7)°]. In Table 1, the torsion angles describing the orientation of the aromatic rings respective to the reference plane are listed.
Both pentyloxy chains adopt all trans conformations.