

Supporting information
![]() | Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807028863/is2177sup1.cif |
![]() | Structure factor file (CIF format) https://doi.org/10.1107/S1600536807028863/is2177Isup2.hkl |
CCDC reference: 654782
A methanol solution (30 ml) of Cu(BF4)2.6H2O (5 mmol, 1.726 g) was mixed with L-glutamic acid (5 mmol, 0.781 g) and the mixture was warmed on a water bath for 5 minutes. The resulting blue solution was added to a methanol solution (10 ml) of 2,2'-bipyridine (5 mmol, 0.780 g). The dark blue solution was stirred for 15 min. Blue crystals were obtained by slow evaporation of the mother liquor after two days. The crystals were analyzed as the title compound. For a direct preparation an aqueous solution (10 ml) of Cu(BF4)2.6H2O (2 mmol, 0.690 g) was mixed with a methanol solution (5 ml) of 2,2'-bipyridine (6 mmol, 0.937 g) and the mixture was refluxed for approximately 2 h. After two days at room temperature long light blue crystals were obtained (yield 68%). Analysis calculated for C30H24CuB2F8N6 (705.72): C 51.06, H 3.43, N 11.91%; found: C 51.30, H, 3.15, N 11.73%.
H atoms were positioned geometrically (C—H = 0.94 Å) and refined using a riding model (AFIX 43), with Uiso(H) = 1.2Ueq(C). The disordered F atoms on B2 were refined anisotropically by assigning them to different PART numbers of a disordered group. The atoms of PART 1 (F6A, F7A and F8) were found to have an occupation factor (sof) of 0.4. The atoms of PART 2 (F6B, F7B, F8B) had an occupation factor of 0.6. These occupation factors were initially found upon refinement and then fixed in subsequent refinement cycles.
Metal complexes with three (modified) 2,2'-bipyridine ligands are of continous interest (Janiak et al., 1999; Wu et al., 2003; Yang et al., 2004a,b). Tris(2,2'-bipyridine)copper structure are known with the anions tris(oxalato)chromate(III) (Juric et al., 2006), polyoxovanadate (Dong et al., 2006), polyoxotungstate (Niu et al., 2004), bis(bis(2-thioxo-1,3-dithiole-4,5-dithiolato)- nickelate(II) (Faulmann et al., 1998), tetraphenylborate (Murphy et al., 2006) and perchlorate (Anderson, 1972; Liu et al., 1991; Majumdar et al., 1998; Pavlishchuk et al., 1999). The closely related tris(5,5'-dimethyl-2,2'-bipyridine)copper(II) complexes have been reported as the hexafluorophosphate (Perkins et al., 2006) and tetrafluoroborate salt (van Albada et al., 2004).
The asymmetric unit of the title complex is shown in Fig. 1. The cation-anion packing view projected onto the bc plane is given in Fig. 2. Bond lengths and angles in the title complex (Table 1) are as expected from the related [Cu(2,2'-bipy)3]-compounds with other anions. The crystal packing is primarily governed by the electrostatic cation-anion interaction and separation. Some weak C—H···F interactions from the bipyridine to the BF4-anion can be discerned (Althoff et al., 2006). No relevant π—π or C—H···π interactions were found (Janiak, 2000; Nishio, 2004).
Noteworthy, the long Cu···N5 distortion apparently leads to a sizable tilt angle between the pyridyl ring planes of N5 and N6 of 32.1 (1)°, while the other two ring planes show tilt angles of 14.5 (1)° (N1,N2) or 11.0 (1)° (N3,N4).
For related literature, see: Althoff et al. (2006); Anderson (1972); Dong et al. (2006); Faulmann et al. (1998); Janiak et al. (1999); Janiak (2000); Juric et al. (2006); Liu et al. (1991); Majumdar et al. (1998); Murphy et al. (2006); Nishio (2004); Niu et al. (2004); Pavlishchuk et al. (1999); Perkins et al. (2006); van Albada et al. (2004); Yang et al. (2004a,b); Wu et al. (2003).
Data collection: SMART (Bruker, 1997); cell refinement: SAINT (Bruker, 1997); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: DIAMOND (Crystal Impact, 2006); software used to prepare material for publication: publCIF (Westrip, 2007).
[Cu(C10H8N2)3](BF4)2 | Z = 2 |
Mr = 705.72 | F(000) = 714 |
Triclinic, P1 | Dx = 1.555 Mg m−3 |
a = 7.8633 (2) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 10.7810 (2) Å | Cell parameters from 9932 reflections |
c = 18.3211 (4) Å | θ = 4.9–57.9° |
α = 101.118 (1)° | µ = 0.81 mm−1 |
β = 90.750 (1)° | T = 203 K |
γ = 98.091 (1)° | Needle, blue |
V = 1507.54 (6) Å3 | 0.29 × 0.09 × 0.06 mm |
Bruker APEXII CCD diffractometer | 6145 independent reflections |
Radiation source: fine-focus sealed tube | 4809 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.081 |
ω scans | θmax = 26.4°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −9→9 |
Tmin = 0.799, Tmax = 0.955 | k = −13→13 |
35533 measured reflections | l = −22→22 |
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)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.088 | H-atom parameters constrained |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0432P)2 + 0.2354P] where P = (Fo2 + 2Fc2)/3 |
6145 reflections | (Δ/σ)max = 0.001 |
451 parameters | Δρmax = 0.68 e Å−3 |
0 restraints | Δρmin = −0.30 e Å−3 |
[Cu(C10H8N2)3](BF4)2 | γ = 98.091 (1)° |
Mr = 705.72 | V = 1507.54 (6) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.8633 (2) Å | Mo Kα radiation |
b = 10.7810 (2) Å | µ = 0.81 mm−1 |
c = 18.3211 (4) Å | T = 203 K |
α = 101.118 (1)° | 0.29 × 0.09 × 0.06 mm |
β = 90.750 (1)° |
Bruker APEXII CCD diffractometer | 6145 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 4809 reflections with I > 2σ(I) |
Tmin = 0.799, Tmax = 0.955 | Rint = 0.081 |
35533 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 0 restraints |
wR(F2) = 0.088 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.68 e Å−3 |
6145 reflections | Δρmin = −0.30 e Å−3 |
451 parameters |
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. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
Cu | 0.49641 (3) | 0.26662 (2) | 0.259958 (10) | 0.02981 (9) | |
N1 | 0.6154 (2) | 0.14377 (15) | 0.18640 (7) | 0.0324 (4) | |
N2 | 0.6720 (2) | 0.39431 (15) | 0.22253 (7) | 0.0323 (4) | |
N3 | 0.6455 (2) | 0.23049 (16) | 0.35676 (8) | 0.0362 (4) | |
N4 | 0.3385 (2) | 0.12645 (15) | 0.29363 (8) | 0.0351 (4) | |
N5 | 0.3100 (2) | 0.30720 (16) | 0.16155 (8) | 0.0356 (4) | |
N6 | 0.3548 (2) | 0.39973 (15) | 0.31069 (7) | 0.0317 (4) | |
C1 | 0.5892 (3) | 0.0164 (2) | 0.17581 (10) | 0.0410 (5) | |
H1A | 0.5004 | −0.0236 | 0.2009 | 0.049* | |
C2 | 0.6876 (3) | −0.0589 (2) | 0.12940 (11) | 0.0506 (6) | |
H2A | 0.6664 | −0.1484 | 0.1233 | 0.061* | |
C3 | 0.8163 (3) | −0.0012 (3) | 0.09252 (12) | 0.0569 (7) | |
H3A | 0.8854 | −0.0507 | 0.0610 | 0.068* | |
C4 | 0.8438 (3) | 0.1303 (2) | 0.10199 (11) | 0.0507 (6) | |
H4A | 0.9316 | 0.1713 | 0.0769 | 0.061* | |
C5 | 0.7400 (3) | 0.2015 (2) | 0.14913 (9) | 0.0354 (5) | |
C6 | 0.7582 (3) | 0.3416 (2) | 0.16347 (9) | 0.0355 (5) | |
C7 | 0.8520 (3) | 0.4170 (2) | 0.12031 (10) | 0.0489 (6) | |
H7A | 0.9077 | 0.3790 | 0.0786 | 0.059* | |
C8 | 0.8627 (3) | 0.5479 (3) | 0.13910 (12) | 0.0543 (6) | |
H8A | 0.9243 | 0.6002 | 0.1100 | 0.065* | |
C9 | 0.7822 (3) | 0.6010 (2) | 0.20101 (12) | 0.0489 (6) | |
H9B | 0.7917 | 0.6903 | 0.2158 | 0.059* | |
C10 | 0.6867 (3) | 0.5218 (2) | 0.24154 (11) | 0.0397 (5) | |
H10A | 0.6307 | 0.5587 | 0.2835 | 0.048* | |
C11 | 0.1779 (3) | 0.0876 (2) | 0.26544 (11) | 0.0454 (5) | |
H11A | 0.1367 | 0.1283 | 0.2292 | 0.055* | |
C12 | 0.0703 (3) | −0.0097 (2) | 0.28738 (12) | 0.0560 (6) | |
H12A | −0.0427 | −0.0343 | 0.2671 | 0.067* | |
C13 | 0.1320 (4) | −0.0700 (2) | 0.33951 (13) | 0.0621 (7) | |
H13A | 0.0619 | −0.1370 | 0.3554 | 0.074* | |
C14 | 0.2974 (4) | −0.0314 (2) | 0.36820 (11) | 0.0552 (7) | |
H14A | 0.3413 | −0.0731 | 0.4033 | 0.066* | |
C15 | 0.3999 (3) | 0.06876 (18) | 0.34562 (9) | 0.0391 (5) | |
C16 | 0.5772 (3) | 0.12056 (19) | 0.37568 (9) | 0.0390 (5) | |
C17 | 0.6688 (4) | 0.0604 (2) | 0.42061 (11) | 0.0513 (6) | |
H17A | 0.6200 | −0.0173 | 0.4329 | 0.062* | |
C18 | 0.8314 (4) | 0.1164 (3) | 0.44662 (12) | 0.0572 (7) | |
H18A | 0.8949 | 0.0773 | 0.4771 | 0.069* | |
C19 | 0.9016 (3) | 0.2303 (2) | 0.42800 (11) | 0.0515 (6) | |
H19A | 1.0126 | 0.2701 | 0.4455 | 0.062* | |
C20 | 0.8033 (3) | 0.2841 (2) | 0.38278 (10) | 0.0436 (5) | |
H20A | 0.8499 | 0.3617 | 0.3698 | 0.052* | |
C21 | 0.2698 (3) | 0.46343 (18) | 0.26934 (9) | 0.0335 (4) | |
C22 | 0.1715 (3) | 0.5548 (2) | 0.30129 (11) | 0.0462 (5) | |
H22A | 0.1144 | 0.5991 | 0.2715 | 0.055* | |
C23 | 0.1587 (3) | 0.5800 (2) | 0.37805 (11) | 0.0517 (6) | |
H23A | 0.0922 | 0.6414 | 0.4009 | 0.062* | |
C24 | 0.2440 (3) | 0.5144 (2) | 0.42011 (10) | 0.0449 (5) | |
H24A | 0.2360 | 0.5298 | 0.4721 | 0.054* | |
C25 | 0.3416 (3) | 0.4256 (2) | 0.38535 (9) | 0.0375 (5) | |
H25A | 0.4010 | 0.3816 | 0.4145 | 0.045* | |
C26 | 0.2875 (3) | 0.5179 (2) | 0.14170 (10) | 0.0401 (5) | |
H26A | 0.2726 | 0.6026 | 0.1616 | 0.048* | |
C27 | 0.3104 (3) | 0.4783 (2) | 0.06585 (11) | 0.0462 (5) | |
H27A | 0.3122 | 0.5363 | 0.0335 | 0.055* | |
C28 | 0.3300 (3) | 0.3536 (2) | 0.03931 (10) | 0.0454 (5) | |
H28A | 0.3433 | 0.3246 | −0.0118 | 0.054* | |
C29 | 0.3300 (3) | 0.2709 (2) | 0.08831 (10) | 0.0405 (5) | |
H29A | 0.3447 | 0.1857 | 0.0695 | 0.049* | |
C30 | 0.2876 (2) | 0.42833 (19) | 0.18674 (9) | 0.0321 (4) | |
B1 | 0.2109 (4) | 0.8267 (2) | 0.08406 (13) | 0.0473 (6) | |
F1 | 0.3396 (2) | 0.77651 (16) | 0.04220 (9) | 0.0756 (5) | |
F2 | 0.05285 (19) | 0.76224 (13) | 0.05089 (7) | 0.0608 (4) | |
F3 | 0.21961 (19) | 0.95517 (12) | 0.08408 (7) | 0.0577 (4) | |
F4 | 0.2248 (3) | 0.80748 (14) | 0.15576 (7) | 0.0805 (5) | |
B2 | 0.3042 (3) | 0.2767 (2) | 0.57012 (12) | 0.0416 (6) | |
F5 | 0.2891 (2) | 0.40217 (15) | 0.57208 (9) | 0.0755 (5) | |
F6A | 0.3457 (11) | 0.2434 (5) | 0.6377 (3) | 0.103 (3) | 0.40 |
F7A | 0.4247 (8) | 0.2392 (6) | 0.5222 (4) | 0.097 (2) | 0.40 |
F8A | 0.1552 (8) | 0.1886 (6) | 0.5459 (4) | 0.099 (2) | 0.40 |
F6B | 0.4403 (5) | 0.2725 (4) | 0.6134 (2) | 0.0805 (12) | 0.60 |
F7B | 0.3161 (7) | 0.2142 (5) | 0.50027 (17) | 0.1027 (16) | 0.60 |
F8B | 0.1604 (5) | 0.2332 (4) | 0.5983 (3) | 0.1105 (16) | 0.60 |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cu | 0.03426 (15) | 0.02520 (13) | 0.03177 (11) | 0.00620 (10) | 0.00703 (9) | 0.00832 (8) |
N1 | 0.0350 (10) | 0.0322 (9) | 0.0305 (6) | 0.0084 (7) | 0.0020 (6) | 0.0053 (6) |
N2 | 0.0315 (9) | 0.0327 (9) | 0.0338 (7) | 0.0015 (7) | −0.0009 (6) | 0.0116 (6) |
N3 | 0.0471 (11) | 0.0314 (9) | 0.0332 (7) | 0.0103 (8) | 0.0042 (7) | 0.0108 (6) |
N4 | 0.0413 (11) | 0.0275 (9) | 0.0374 (7) | 0.0060 (8) | 0.0106 (7) | 0.0073 (6) |
N5 | 0.0382 (10) | 0.0329 (9) | 0.0358 (7) | 0.0054 (8) | −0.0022 (7) | 0.0072 (6) |
N6 | 0.0346 (9) | 0.0276 (9) | 0.0333 (7) | 0.0062 (7) | 0.0036 (6) | 0.0060 (6) |
C1 | 0.0488 (14) | 0.0369 (12) | 0.0385 (9) | 0.0126 (10) | 0.0031 (9) | 0.0057 (8) |
C2 | 0.0652 (17) | 0.0406 (13) | 0.0471 (10) | 0.0237 (12) | −0.0017 (11) | 0.0003 (9) |
C3 | 0.0567 (16) | 0.0674 (18) | 0.0480 (11) | 0.0321 (14) | 0.0063 (11) | −0.0022 (11) |
C4 | 0.0393 (13) | 0.0699 (17) | 0.0436 (10) | 0.0148 (12) | 0.0114 (9) | 0.0076 (10) |
C5 | 0.0298 (11) | 0.0486 (12) | 0.0296 (7) | 0.0096 (9) | −0.0003 (7) | 0.0090 (8) |
C6 | 0.0272 (11) | 0.0484 (13) | 0.0314 (8) | 0.0016 (9) | −0.0012 (7) | 0.0122 (8) |
C7 | 0.0403 (13) | 0.0667 (16) | 0.0397 (9) | −0.0062 (12) | 0.0034 (9) | 0.0204 (10) |
C8 | 0.0478 (15) | 0.0636 (17) | 0.0539 (11) | −0.0126 (12) | −0.0048 (10) | 0.0330 (11) |
C9 | 0.0442 (14) | 0.0379 (12) | 0.0645 (12) | −0.0063 (11) | −0.0150 (11) | 0.0199 (10) |
C10 | 0.0373 (12) | 0.0354 (12) | 0.0470 (9) | 0.0006 (9) | −0.0055 (9) | 0.0132 (8) |
C11 | 0.0485 (14) | 0.0379 (12) | 0.0482 (10) | 0.0035 (11) | 0.0108 (10) | 0.0058 (9) |
C12 | 0.0567 (16) | 0.0459 (14) | 0.0581 (12) | −0.0090 (12) | 0.0134 (11) | 0.0033 (10) |
C13 | 0.076 (2) | 0.0440 (14) | 0.0608 (13) | −0.0149 (13) | 0.0203 (13) | 0.0121 (11) |
C14 | 0.082 (2) | 0.0408 (13) | 0.0459 (10) | 0.0038 (13) | 0.0152 (11) | 0.0188 (9) |
C15 | 0.0572 (14) | 0.0269 (10) | 0.0346 (8) | 0.0085 (10) | 0.0158 (9) | 0.0072 (7) |
C16 | 0.0556 (15) | 0.0344 (11) | 0.0313 (8) | 0.0154 (10) | 0.0138 (8) | 0.0099 (7) |
C17 | 0.0686 (18) | 0.0457 (14) | 0.0507 (11) | 0.0240 (13) | 0.0144 (11) | 0.0251 (10) |
C18 | 0.0683 (19) | 0.0680 (17) | 0.0495 (11) | 0.0368 (15) | 0.0094 (11) | 0.0269 (11) |
C19 | 0.0518 (15) | 0.0650 (16) | 0.0429 (10) | 0.0210 (13) | 0.0015 (10) | 0.0144 (10) |
C20 | 0.0500 (15) | 0.0440 (13) | 0.0385 (9) | 0.0088 (11) | 0.0007 (9) | 0.0107 (8) |
C21 | 0.0329 (11) | 0.0309 (10) | 0.0366 (8) | 0.0065 (9) | 0.0008 (8) | 0.0052 (7) |
C22 | 0.0461 (14) | 0.0461 (13) | 0.0483 (10) | 0.0203 (11) | −0.0029 (9) | 0.0046 (9) |
C23 | 0.0513 (15) | 0.0514 (14) | 0.0517 (11) | 0.0233 (12) | 0.0061 (10) | −0.0036 (10) |
C24 | 0.0497 (14) | 0.0462 (13) | 0.0372 (9) | 0.0125 (11) | 0.0082 (9) | 0.0004 (9) |
C25 | 0.0398 (12) | 0.0376 (11) | 0.0355 (8) | 0.0053 (9) | 0.0045 (8) | 0.0082 (8) |
C26 | 0.0428 (13) | 0.0332 (11) | 0.0464 (9) | 0.0099 (10) | −0.0024 (9) | 0.0097 (8) |
C27 | 0.0496 (14) | 0.0498 (14) | 0.0446 (10) | 0.0083 (11) | 0.0005 (9) | 0.0216 (9) |
C28 | 0.0494 (14) | 0.0519 (14) | 0.0344 (8) | 0.0071 (11) | −0.0007 (9) | 0.0077 (9) |
C29 | 0.0457 (13) | 0.0370 (12) | 0.0367 (8) | 0.0078 (10) | −0.0033 (8) | 0.0013 (8) |
C30 | 0.0270 (11) | 0.0324 (11) | 0.0368 (8) | 0.0057 (8) | −0.0022 (7) | 0.0062 (7) |
B1 | 0.0596 (18) | 0.0304 (13) | 0.0518 (12) | 0.0077 (12) | −0.0008 (12) | 0.0069 (10) |
F1 | 0.0628 (11) | 0.0641 (11) | 0.0981 (11) | 0.0240 (9) | 0.0108 (8) | 0.0003 (8) |
F2 | 0.0574 (9) | 0.0529 (9) | 0.0687 (8) | −0.0077 (7) | 0.0027 (7) | 0.0154 (7) |
F3 | 0.0666 (10) | 0.0331 (7) | 0.0749 (8) | 0.0067 (7) | 0.0047 (7) | 0.0149 (6) |
F4 | 0.1436 (17) | 0.0460 (9) | 0.0540 (7) | 0.0211 (10) | −0.0122 (9) | 0.0108 (6) |
B2 | 0.0395 (15) | 0.0437 (15) | 0.0414 (10) | 0.0055 (12) | −0.0028 (10) | 0.0091 (10) |
F5 | 0.0962 (13) | 0.0488 (9) | 0.0854 (9) | 0.0195 (9) | −0.0092 (9) | 0.0170 (8) |
F6A | 0.209 (9) | 0.056 (4) | 0.047 (2) | 0.057 (4) | −0.040 (4) | −0.008 (2) |
F7A | 0.084 (4) | 0.084 (4) | 0.116 (5) | 0.009 (4) | 0.064 (4) | 0.003 (4) |
F8A | 0.075 (4) | 0.072 (4) | 0.147 (5) | −0.023 (3) | −0.056 (5) | 0.046 (4) |
F6B | 0.064 (2) | 0.063 (2) | 0.114 (3) | 0.0096 (17) | −0.045 (2) | 0.021 (2) |
F7B | 0.159 (5) | 0.103 (3) | 0.0495 (14) | 0.061 (4) | 0.004 (2) | −0.0062 (16) |
F8B | 0.051 (2) | 0.096 (3) | 0.206 (5) | 0.010 (2) | 0.051 (3) | 0.079 (3) |
Cu—N4 | 2.0144 (16) | C13—H13A | 0.9400 |
Cu—N2 | 2.0309 (16) | C14—C15 | 1.387 (3) |
Cu—N6 | 2.0313 (16) | C14—H14A | 0.9400 |
Cu—N1 | 2.0347 (15) | C15—C16 | 1.483 (3) |
Cu—N3 | 2.2388 (16) | C16—C17 | 1.392 (3) |
Cu—N5 | 2.4506 (16) | C17—C18 | 1.372 (4) |
N1—C1 | 1.335 (3) | C17—H17A | 0.9400 |
N1—C5 | 1.350 (2) | C18—C19 | 1.380 (3) |
N2—C10 | 1.339 (3) | C18—H18A | 0.9400 |
N2—C6 | 1.358 (2) | C19—C20 | 1.383 (3) |
N3—C20 | 1.333 (3) | C19—H19A | 0.9400 |
N3—C16 | 1.341 (3) | C20—H20A | 0.9400 |
N4—C11 | 1.337 (3) | C21—C22 | 1.383 (3) |
N4—C15 | 1.352 (3) | C21—C30 | 1.501 (2) |
N5—C30 | 1.336 (2) | C22—C23 | 1.388 (3) |
N5—C29 | 1.341 (2) | C22—H22A | 0.9400 |
N6—C21 | 1.345 (3) | C23—C24 | 1.369 (3) |
N6—C25 | 1.351 (2) | C23—H23A | 0.9400 |
C1—C2 | 1.381 (3) | C24—C25 | 1.377 (3) |
C1—H1A | 0.9400 | C24—H24A | 0.9400 |
C2—C3 | 1.368 (4) | C25—H25A | 0.9400 |
C2—H2A | 0.9400 | C26—C30 | 1.386 (3) |
C3—C4 | 1.380 (4) | C26—C27 | 1.395 (3) |
C3—H3A | 0.9400 | C26—H26A | 0.9400 |
C4—C5 | 1.393 (3) | C27—C28 | 1.370 (3) |
C4—H4A | 0.9400 | C27—H27A | 0.9400 |
C5—C6 | 1.468 (3) | C28—C29 | 1.382 (3) |
C6—C7 | 1.387 (3) | C28—H28A | 0.9400 |
C7—C8 | 1.377 (3) | C29—H29A | 0.9400 |
C7—H7A | 0.9400 | B1—F4 | 1.374 (3) |
C8—C9 | 1.373 (3) | B1—F3 | 1.377 (3) |
C8—H8A | 0.9400 | B1—F1 | 1.386 (3) |
C9—C10 | 1.387 (3) | B1—F2 | 1.404 (3) |
C9—H9B | 0.9400 | B2—F8B | 1.313 (4) |
C10—H10A | 0.9400 | B2—F6B | 1.334 (4) |
C11—C12 | 1.379 (3) | B2—F7B | 1.337 (4) |
C11—H11A | 0.9400 | B2—F7A | 1.351 (5) |
C12—C13 | 1.373 (4) | B2—F5 | 1.368 (3) |
C12—H12A | 0.9400 | B2—F6A | 1.402 (5) |
C13—C14 | 1.373 (4) | B2—F8A | 1.409 (6) |
N4—Cu—N2 | 174.08 (6) | C12—C13—H13A | 120.3 |
N4—Cu—N6 | 91.04 (6) | C13—C14—C15 | 120.3 (2) |
N2—Cu—N6 | 94.81 (6) | C13—C14—H14A | 119.8 |
N4—Cu—N1 | 94.04 (6) | C15—C14—H14A | 119.8 |
N2—Cu—N1 | 80.47 (6) | N4—C15—C14 | 119.9 (2) |
N6—Cu—N1 | 166.16 (6) | N4—C15—C16 | 115.94 (17) |
N4—Cu—N3 | 77.31 (7) | C14—C15—C16 | 124.2 (2) |
N2—Cu—N3 | 100.51 (6) | N3—C16—C17 | 121.4 (2) |
N6—Cu—N3 | 101.71 (6) | N3—C16—C15 | 115.58 (18) |
N1—Cu—N3 | 91.97 (6) | C17—C16—C15 | 123.0 (2) |
N4—Cu—N5 | 99.13 (6) | C18—C17—C16 | 118.8 (2) |
N2—Cu—N5 | 83.42 (6) | C18—C17—H17A | 120.6 |
N6—Cu—N5 | 74.14 (6) | C16—C17—H17A | 120.6 |
N1—Cu—N5 | 92.33 (6) | C17—C18—C19 | 120.0 (2) |
N3—Cu—N5 | 174.61 (6) | C17—C18—H18A | 120.0 |
C1—N1—C5 | 119.01 (17) | C19—C18—H18A | 120.0 |
C1—N1—Cu | 126.67 (13) | C18—C19—C20 | 117.9 (2) |
C5—N1—Cu | 114.18 (13) | C18—C19—H19A | 121.0 |
C10—N2—C6 | 118.84 (17) | C20—C19—H19A | 121.0 |
C10—N2—Cu | 126.24 (13) | N3—C20—C19 | 122.8 (2) |
C6—N2—Cu | 113.80 (13) | N3—C20—H20A | 118.6 |
C20—N3—C16 | 119.03 (18) | C19—C20—H20A | 118.6 |
C20—N3—Cu | 128.30 (13) | N6—C21—C22 | 121.80 (16) |
C16—N3—Cu | 110.50 (13) | N6—C21—C30 | 115.75 (17) |
C11—N4—C15 | 119.49 (18) | C22—C21—C30 | 122.44 (18) |
C11—N4—Cu | 122.36 (14) | C21—C22—C23 | 119.0 (2) |
C15—N4—Cu | 118.14 (14) | C21—C22—H22A | 120.5 |
C30—N5—C29 | 117.54 (18) | C23—C22—H22A | 120.5 |
C30—N5—Cu | 102.31 (11) | C24—C23—C22 | 119.2 (2) |
C29—N5—Cu | 124.94 (14) | C24—C23—H23A | 120.4 |
C21—N6—C25 | 118.56 (17) | C22—C23—H23A | 120.4 |
C21—N6—Cu | 119.66 (11) | C23—C24—C25 | 119.25 (18) |
C25—N6—Cu | 121.77 (14) | C23—C24—H24A | 120.4 |
N1—C1—C2 | 122.5 (2) | C25—C24—H24A | 120.4 |
N1—C1—H1A | 118.8 | N6—C25—C24 | 122.2 (2) |
C2—C1—H1A | 118.8 | N6—C25—H25A | 118.9 |
C3—C2—C1 | 119.0 (2) | C24—C25—H25A | 118.9 |
C3—C2—H2A | 120.5 | C30—C26—C27 | 117.9 (2) |
C1—C2—H2A | 120.5 | C30—C26—H26A | 121.1 |
C2—C3—C4 | 119.4 (2) | C27—C26—H26A | 121.1 |
C2—C3—H3A | 120.3 | C28—C27—C26 | 118.9 (2) |
C4—C3—H3A | 120.3 | C28—C27—H27A | 120.5 |
C3—C4—C5 | 119.2 (2) | C26—C27—H27A | 120.5 |
C3—C4—H4A | 120.4 | C27—C28—C29 | 119.40 (18) |
C5—C4—H4A | 120.4 | C27—C28—H28A | 120.3 |
N1—C5—C4 | 120.9 (2) | C29—C28—H28A | 120.3 |
N1—C5—C6 | 115.26 (16) | N5—C29—C28 | 122.7 (2) |
C4—C5—C6 | 123.83 (19) | N5—C29—H29A | 118.7 |
N2—C6—C7 | 121.2 (2) | C28—C29—H29A | 118.7 |
N2—C6—C5 | 114.73 (16) | N5—C30—C26 | 123.60 (16) |
C7—C6—C5 | 124.03 (18) | N5—C30—C21 | 114.84 (17) |
C8—C7—C6 | 119.5 (2) | C26—C30—C21 | 121.51 (18) |
C8—C7—H7A | 120.3 | F4—B1—F3 | 110.12 (18) |
C6—C7—H7A | 120.3 | F4—B1—F1 | 110.1 (2) |
C9—C8—C7 | 119.1 (2) | F3—B1—F1 | 110.5 (2) |
C9—C8—H8A | 120.5 | F4—B1—F2 | 109.4 (2) |
C7—C8—H8A | 120.5 | F3—B1—F2 | 109.2 (2) |
C8—C9—C10 | 119.4 (2) | F1—B1—F2 | 107.39 (18) |
C8—C9—H9B | 120.3 | F8B—B2—F6B | 111.3 (3) |
C10—C9—H9B | 120.3 | F8B—B2—F7B | 110.6 (4) |
N2—C10—C9 | 121.8 (2) | F6B—B2—F7B | 112.2 (3) |
N2—C10—H10A | 119.1 | F8B—B2—F5 | 103.0 (3) |
C9—C10—H10A | 119.1 | F6B—B2—F5 | 108.2 (3) |
N4—C11—C12 | 122.6 (2) | F7B—B2—F5 | 111.2 (3) |
N4—C11—H11A | 118.7 | F7A—B2—F5 | 110.5 (4) |
C12—C11—H11A | 118.7 | F7A—B2—F6A | 106.7 (5) |
C13—C12—C11 | 118.4 (2) | F5—B2—F6A | 116.9 (3) |
C13—C12—H12A | 120.8 | F7A—B2—F8A | 104.6 (4) |
C11—C12—H12A | 120.8 | F5—B2—F8A | 115.6 (3) |
C14—C13—C12 | 119.3 (2) | F6A—B2—F8A | 101.4 (4) |
C14—C13—H13A | 120.3 |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3A···F2i | 0.94 | 2.54 | 3.342 (3) | 144 |
C8—H8A···F2ii | 0.94 | 2.35 | 3.274 (3) | 169 |
C10—H10A···F6Biii | 0.94 | 2.49 | 3.376 (4) | 158 |
C13—H13A···F8Biv | 0.94 | 2.17 | 3.063 (5) | 158 |
C26—H26A···F4 | 0.94 | 2.31 | 3.191 (3) | 155 |
C27—H27A···F1 | 0.94 | 2.54 | 3.303 (3) | 138 |
Symmetry codes: (i) x+1, y−1, z; (ii) x+1, y, z; (iii) −x+1, −y+1, −z+1; (iv) −x, −y, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Cu(C10H8N2)3](BF4)2 |
Mr | 705.72 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 203 |
a, b, c (Å) | 7.8633 (2), 10.7810 (2), 18.3211 (4) |
α, β, γ (°) | 101.118 (1), 90.750 (1), 98.091 (1) |
V (Å3) | 1507.54 (6) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.81 |
Crystal size (mm) | 0.29 × 0.09 × 0.06 |
Data collection | |
Diffractometer | Bruker APEXII CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.799, 0.955 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 35533, 6145, 4809 |
Rint | 0.081 |
(sin θ/λ)max (Å−1) | 0.625 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.088, 1.06 |
No. of reflections | 6145 |
No. of parameters | 451 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.68, −0.30 |
Computer programs: SMART (Bruker, 1997), SAINT (Bruker, 1997), SAINT, SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), DIAMOND (Crystal Impact, 2006), publCIF (Westrip, 2007).
Cu—N4 | 2.0144 (16) | Cu—N1 | 2.0347 (15) |
Cu—N2 | 2.0309 (16) | Cu—N3 | 2.2388 (16) |
Cu—N6 | 2.0313 (16) | Cu—N5 | 2.4506 (16) |
N4—Cu—N2 | 174.08 (6) | N6—Cu—N3 | 101.71 (6) |
N4—Cu—N6 | 91.04 (6) | N1—Cu—N3 | 91.97 (6) |
N2—Cu—N6 | 94.81 (6) | N4—Cu—N5 | 99.13 (6) |
N4—Cu—N1 | 94.04 (6) | N2—Cu—N5 | 83.42 (6) |
N2—Cu—N1 | 80.47 (6) | N6—Cu—N5 | 74.14 (6) |
N6—Cu—N1 | 166.16 (6) | N1—Cu—N5 | 92.33 (6) |
N4—Cu—N3 | 77.31 (7) | N3—Cu—N5 | 174.61 (6) |
N2—Cu—N3 | 100.51 (6) |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3A···F2i | 0.94 | 2.54 | 3.342 (3) | 144 |
C8—H8A···F2ii | 0.94 | 2.35 | 3.274 (3) | 169 |
C10—H10A···F6Biii | 0.94 | 2.49 | 3.376 (4) | 158 |
C13—H13A···F8Biv | 0.94 | 2.17 | 3.063 (5) | 158 |
C26—H26A···F4 | 0.94 | 2.31 | 3.191 (3) | 155 |
C27—H27A···F1 | 0.94 | 2.54 | 3.303 (3) | 138 |
Symmetry codes: (i) x+1, y−1, z; (ii) x+1, y, z; (iii) −x+1, −y+1, −z+1; (iv) −x, −y, −z+1. |
Metal complexes with three (modified) 2,2'-bipyridine ligands are of continous interest (Janiak et al., 1999; Wu et al., 2003; Yang et al., 2004a,b). Tris(2,2'-bipyridine)copper structure are known with the anions tris(oxalato)chromate(III) (Juric et al., 2006), polyoxovanadate (Dong et al., 2006), polyoxotungstate (Niu et al., 2004), bis(bis(2-thioxo-1,3-dithiole-4,5-dithiolato)- nickelate(II) (Faulmann et al., 1998), tetraphenylborate (Murphy et al., 2006) and perchlorate (Anderson, 1972; Liu et al., 1991; Majumdar et al., 1998; Pavlishchuk et al., 1999). The closely related tris(5,5'-dimethyl-2,2'-bipyridine)copper(II) complexes have been reported as the hexafluorophosphate (Perkins et al., 2006) and tetrafluoroborate salt (van Albada et al., 2004).
The asymmetric unit of the title complex is shown in Fig. 1. The cation-anion packing view projected onto the bc plane is given in Fig. 2. Bond lengths and angles in the title complex (Table 1) are as expected from the related [Cu(2,2'-bipy)3]-compounds with other anions. The crystal packing is primarily governed by the electrostatic cation-anion interaction and separation. Some weak C—H···F interactions from the bipyridine to the BF4-anion can be discerned (Althoff et al., 2006). No relevant π—π or C—H···π interactions were found (Janiak, 2000; Nishio, 2004).
Noteworthy, the long Cu···N5 distortion apparently leads to a sizable tilt angle between the pyridyl ring planes of N5 and N6 of 32.1 (1)°, while the other two ring planes show tilt angles of 14.5 (1)° (N1,N2) or 11.0 (1)° (N3,N4).