Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S0108270107054960/sk3174sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S0108270107054960/sk3174Isup2.hkl |
CCDC reference: 600887
For related literature, see: Alcon et al. (2000); Amirnasr et al. (2005); Andersson & Jagner (1989); Bowker et al. (1988); Bowmarker et al. (2000); Bruker (2005); Dietrich-Buchecker & Sauvage (1987); Engelhardt et al. (1984); Fife et al. (1985); Foster et al. (2000); Hasselgren et al. (1999); Horváth (1994); Kaiser et al. (1974); Kutal (1990); Lange et al. (2000); Meghdadi et al. (2002); Miller & Karpishin (1999); Mirkhani et al. (2004); Panja et al. (2002); Rosi et al. (1999).
The title compound was prepared by the reaction of CuCl and cb2en (molar ratio 1:1) in an acetonitrile solution at room temperature. The solution was then concentrated under vacuum. Red crystals of (I) were formed by vapour diffusion of diethyl ether into the concentrated solution.
The small size and weak diffraction of the crystals necessitated the use of synchrotron radiation. The crystal was found to be a non-merohedral rotation twin about (100), with symmetry-inequivalent reflections overlapping in the diffraction pattern, making it impossible to merge equivalent reflections before the refinement with SHELXL HKLF5 style data (SHELXTL; Bruker, 2005). The twin law is (1 0 0/ 0 - 1 0/ -0.8867 0 - 1). A number of reflections were rejected in the data processing because of problems with spot shape or masking by the beamstop. The deposited structure factors are in the format generated by the undocumented LIST 7 instruction of SHELXTL (and SHELXL97), in which the contributions of the twin components are identified following refinement of the twin fraction; this was 0.5415:0.4585 (5).
All H atoms were placed in idealized positions and constrained to ride on their parent atoms, with C—H distances in the range 0.95–0.99 Å, with Uiso(H) = 1.2Ueq(C) [1.5Ueq(C) for methyl H atoms]. One Cl atom of the anion was modelled as disordered over two positions, with occupancy factors 0.55:0.45 (2). Twofold disorder was also found for the CH2CH2 bridge of one of the ligands in the cation, with occupancy factors 0.515:0.485 (15); restraints were applied to the displacement parameters of these disordered atoms.
Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXTL (Bruker, 2005); program(s) used to refine structure: SHELXTL (Bruker, 2005); molecular graphics: SHELXTL (Bruker, 2005); software used to prepare material for publication: SHELXTL (Bruker, 2005) and local programs.
[Cu(C16H14Cl2N2)2][CuCl2]·C2H3N | F(000) = 1720 |
Mr = 849.42 | Dx = 1.590 Mg m−3 |
Monoclinic, P21/n | Synchrotron radiation, λ = 0.8462 Å |
Hall symbol: -P 2yn | Cell parameters from 1720 reflections |
a = 7.845 (5) Å | θ = 3.7–33.3° |
b = 16.965 (10) Å | µ = 1.68 mm−1 |
c = 26.915 (15) Å | T = 120 K |
β = 97.896 (9)° | Block, orange |
V = 3548 (4) Å3 | 0.10 × 0.10 × 0.10 mm |
Z = 4 |
Bruker APEXII CCD diffractometer | 30485 independent reflections |
Radiation source: Daresbury SRS station 16.2SMX | 15283 reflections with I > 2σ(I) |
Silicon 111 monochromator | Rint = 0.000 |
thin–slice ω scans | θmax = 31.9°, θmin = 4.2° |
Absorption correction: multi-scan (TWINABS; Bruker, 2004) | h = −9→9 |
Tmin = 0.730, Tmax = 0.850 | k = −21→21 |
30485 measured reflections | l = −33→33 |
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)] = 0.056 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.127 | H-atom parameters constrained |
S = 0.79 | w = 1/[σ2(Fo2) + (0.0359P)2] where P = (Fo2 + 2Fc2)/3 |
30485 reflections | (Δ/σ)max = 0.005 |
456 parameters | Δρmax = 0.71 e Å−3 |
24 restraints | Δρmin = −0.84 e Å−3 |
[Cu(C16H14Cl2N2)2][CuCl2]·C2H3N | V = 3548 (4) Å3 |
Mr = 849.42 | Z = 4 |
Monoclinic, P21/n | Synchrotron radiation, λ = 0.8462 Å |
a = 7.845 (5) Å | µ = 1.68 mm−1 |
b = 16.965 (10) Å | T = 120 K |
c = 26.915 (15) Å | 0.10 × 0.10 × 0.10 mm |
β = 97.896 (9)° |
Bruker APEXII CCD diffractometer | 30485 independent reflections |
Absorption correction: multi-scan (TWINABS; Bruker, 2004) | 15283 reflections with I > 2σ(I) |
Tmin = 0.730, Tmax = 0.850 | Rint = 0.000 |
30485 measured reflections |
R[F2 > 2σ(F2)] = 0.056 | 24 restraints |
wR(F2) = 0.127 | H-atom parameters constrained |
S = 0.79 | Δρmax = 0.71 e Å−3 |
30485 reflections | Δρmin = −0.84 e Å−3 |
456 parameters |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
Cu1 | 0.27850 (5) | 0.24353 (3) | 0.624256 (15) | 0.01994 (11) | |
Cu2 | 0.24837 (6) | 0.25659 (3) | 0.320108 (17) | 0.03667 (14) | |
Cl1 | 0.54531 (12) | −0.06468 (6) | 0.68760 (4) | 0.0346 (3) | |
Cl2 | 0.17607 (15) | 0.55829 (6) | 0.68610 (5) | 0.0560 (4) | |
Cl3 | 0.42641 (13) | 0.54910 (6) | 0.55917 (4) | 0.0389 (3) | |
Cl4 | 0.15693 (12) | −0.06374 (6) | 0.56177 (3) | 0.0285 (2) | |
Cl5 | 0.15291 (12) | 0.24529 (6) | 0.38838 (3) | 0.0353 (2) | |
Cl6 | 0.3896 (19) | 0.2678 (2) | 0.2565 (2) | 0.0429 (19) | 0.55 (2) |
Cl6A | 0.3021 (17) | 0.2747 (3) | 0.24772 (18) | 0.0314 (16) | 0.45 (2) |
N1 | 0.4113 (4) | 0.17874 (18) | 0.67975 (11) | 0.0312 (8) | |
N2 | 0.2138 (4) | 0.31162 (17) | 0.68051 (11) | 0.0237 (7) | |
N3 | 0.3661 (3) | 0.30304 (17) | 0.56702 (11) | 0.0200 (7) | |
N4 | 0.1356 (3) | 0.18205 (17) | 0.56960 (10) | 0.0195 (7) | |
N5 | 0.7040 (4) | 0.2583 (2) | 0.48590 (14) | 0.0431 (9) | |
C1 | 0.5758 (4) | −0.0059 (2) | 0.63605 (14) | 0.0208 (9) | |
C2 | 0.6331 (4) | −0.0427 (2) | 0.59556 (14) | 0.0226 (9) | |
H2A | 0.6550 | −0.0978 | 0.5965 | 0.027* | |
C3 | 0.6584 (4) | 0.0003 (2) | 0.55406 (14) | 0.0266 (10) | |
H3A | 0.6958 | −0.0247 | 0.5259 | 0.032* | |
C4 | 0.6282 (4) | 0.0818 (2) | 0.55377 (14) | 0.0256 (9) | |
H4A | 0.6448 | 0.1124 | 0.5253 | 0.031* | |
C5 | 0.5743 (4) | 0.1175 (2) | 0.59511 (13) | 0.0205 (9) | |
H5A | 0.5564 | 0.1729 | 0.5946 | 0.025* | |
C6 | 0.5454 (4) | 0.0751 (2) | 0.63731 (13) | 0.0171 (8) | |
C7 | 0.4939 (5) | 0.1137 (2) | 0.68146 (14) | 0.0302 (10) | |
H7A | 0.5235 | 0.0891 | 0.7132 | 0.036* | |
C8 | 0.4227 (15) | 0.2261 (6) | 0.7287 (3) | 0.017 (3) | 0.485 (14) |
H8A | 0.5132 | 0.2669 | 0.7298 | 0.021* | 0.485 (14) |
H8B | 0.4510 | 0.1908 | 0.7580 | 0.021* | 0.485 (14) |
C8A | 0.3345 (15) | 0.1978 (6) | 0.7264 (3) | 0.020 (3) | 0.515 (14) |
H8AA | 0.4101 | 0.1792 | 0.7567 | 0.024* | 0.515 (14) |
H8AB | 0.2200 | 0.1729 | 0.7255 | 0.024* | 0.515 (14) |
C9 | 0.2456 (15) | 0.2646 (6) | 0.7296 (3) | 0.021 (3) | 0.485 (14) |
H9A | 0.1554 | 0.2241 | 0.7308 | 0.025* | 0.485 (14) |
H9B | 0.2472 | 0.2999 | 0.7590 | 0.025* | 0.485 (14) |
C9A | 0.3195 (14) | 0.2863 (5) | 0.7264 (3) | 0.020 (2) | 0.515 (14) |
H9AA | 0.2665 | 0.3037 | 0.7559 | 0.024* | 0.515 (14) |
H9AB | 0.4353 | 0.3103 | 0.7286 | 0.024* | 0.515 (14) |
C10 | 0.1506 (4) | 0.3805 (2) | 0.68212 (14) | 0.0279 (10) | |
H10A | 0.1546 | 0.4052 | 0.7139 | 0.033* | |
C11 | 0.0711 (4) | 0.4240 (2) | 0.63727 (15) | 0.0238 (9) | |
C12 | −0.0142 (4) | 0.3837 (2) | 0.59701 (15) | 0.0262 (10) | |
H12A | −0.0178 | 0.3277 | 0.5976 | 0.031* | |
C13 | −0.0948 (5) | 0.4237 (3) | 0.55571 (16) | 0.0357 (11) | |
H13A | −0.1538 | 0.3956 | 0.5280 | 0.043* | |
C14 | −0.0889 (5) | 0.5055 (3) | 0.55494 (18) | 0.0458 (13) | |
H14A | −0.1425 | 0.5331 | 0.5263 | 0.055* | |
C15 | −0.0085 (5) | 0.5463 (3) | 0.5942 (2) | 0.0458 (13) | |
H15A | −0.0070 | 0.6023 | 0.5937 | 0.055* | |
C16 | 0.0720 (5) | 0.5052 (2) | 0.63543 (16) | 0.0329 (11) | |
C17 | 0.5256 (4) | 0.4950 (2) | 0.60984 (15) | 0.0250 (9) | |
C18 | 0.6097 (5) | 0.5350 (2) | 0.65003 (17) | 0.0325 (11) | |
H18A | 0.6123 | 0.5909 | 0.6500 | 0.039* | |
C19 | 0.6905 (5) | 0.4936 (2) | 0.69041 (16) | 0.0342 (11) | |
H19A | 0.7506 | 0.5208 | 0.7183 | 0.041* | |
C20 | 0.6839 (4) | 0.4117 (2) | 0.69030 (14) | 0.0256 (9) | |
H20A | 0.7381 | 0.3830 | 0.7184 | 0.031* | |
C21 | 0.5994 (4) | 0.3725 (2) | 0.64982 (13) | 0.0207 (9) | |
H21A | 0.5982 | 0.3165 | 0.6498 | 0.025* | |
C22 | 0.5159 (4) | 0.4126 (2) | 0.60896 (14) | 0.0193 (9) | |
C23 | 0.4375 (4) | 0.3703 (2) | 0.56447 (14) | 0.0248 (9) | |
H23A | 0.4396 | 0.3936 | 0.5325 | 0.030* | |
C24 | 0.3069 (4) | 0.2628 (2) | 0.51925 (12) | 0.0235 (9) | |
H24A | 0.3920 | 0.2224 | 0.5127 | 0.028* | |
H24B | 0.2966 | 0.3015 | 0.4914 | 0.028* | |
C25 | 0.1333 (4) | 0.2241 (2) | 0.52152 (12) | 0.0266 (10) | |
H25A | 0.0418 | 0.2647 | 0.5182 | 0.032* | |
H25B | 0.1077 | 0.1864 | 0.4934 | 0.032* | |
C26 | 0.0824 (4) | 0.1117 (2) | 0.56783 (13) | 0.0203 (9) | |
H26A | 0.0503 | 0.0882 | 0.5359 | 0.024* | |
C27 | 0.0679 (4) | 0.0644 (2) | 0.61281 (13) | 0.0179 (8) | |
C28 | 0.0179 (4) | 0.0987 (2) | 0.65588 (13) | 0.0184 (9) | |
H28A | −0.0019 | 0.1540 | 0.6565 | 0.022* | |
C29 | −0.0034 (4) | 0.0539 (2) | 0.69757 (13) | 0.0224 (9) | |
H29A | −0.0386 | 0.0784 | 0.7262 | 0.027* | |
C30 | 0.0263 (4) | −0.0265 (2) | 0.69768 (13) | 0.0213 (9) | |
H30A | 0.0139 | −0.0570 | 0.7266 | 0.026* | |
C31 | 0.0731 (4) | −0.0616 (2) | 0.65649 (13) | 0.0206 (9) | |
H31A | 0.0927 | −0.1169 | 0.6565 | 0.025* | |
C32 | 0.0928 (4) | −0.0171 (2) | 0.61401 (13) | 0.0168 (8) | |
C33 | 0.6915 (4) | 0.2562 (2) | 0.44344 (19) | 0.0338 (10) | |
C34 | 0.6791 (4) | 0.2547 (2) | 0.38894 (14) | 0.0401 (10) | |
H34A | 0.6162 | 0.3014 | 0.3749 | 0.060* | |
H34B | 0.6178 | 0.2071 | 0.3760 | 0.060* | |
H34C | 0.7950 | 0.2548 | 0.3792 | 0.060* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cu1 | 0.0275 (2) | 0.0170 (3) | 0.0153 (2) | 0.0016 (2) | 0.00302 (18) | 0.0026 (2) |
Cu2 | 0.0576 (3) | 0.0208 (3) | 0.0306 (3) | −0.0078 (3) | 0.0024 (2) | 0.0008 (3) |
Cl1 | 0.0369 (6) | 0.0301 (6) | 0.0369 (6) | 0.0058 (5) | 0.0058 (5) | 0.0179 (5) |
Cl2 | 0.0636 (8) | 0.0274 (7) | 0.0813 (10) | −0.0044 (6) | 0.0249 (7) | −0.0206 (7) |
Cl3 | 0.0535 (7) | 0.0248 (6) | 0.0416 (7) | 0.0138 (5) | 0.0178 (6) | 0.0146 (5) |
Cl4 | 0.0406 (6) | 0.0252 (6) | 0.0200 (5) | 0.0038 (5) | 0.0058 (4) | −0.0064 (4) |
Cl5 | 0.0502 (6) | 0.0235 (6) | 0.0324 (6) | 0.0059 (5) | 0.0065 (4) | −0.0036 (5) |
Cl6 | 0.047 (5) | 0.0357 (15) | 0.0489 (18) | −0.0119 (19) | 0.015 (2) | 0.0140 (13) |
Cl6A | 0.024 (4) | 0.0340 (17) | 0.0347 (17) | −0.0061 (18) | −0.0009 (19) | 0.0068 (12) |
N1 | 0.043 (2) | 0.033 (2) | 0.0170 (19) | 0.0180 (17) | 0.0032 (16) | 0.0064 (15) |
N2 | 0.032 (2) | 0.0207 (19) | 0.0170 (18) | 0.0054 (15) | −0.0024 (15) | −0.0025 (14) |
N3 | 0.0168 (17) | 0.0213 (19) | 0.0230 (19) | 0.0038 (14) | 0.0063 (14) | 0.0057 (14) |
N4 | 0.0256 (18) | 0.0197 (19) | 0.0135 (17) | 0.0025 (15) | 0.0037 (13) | 0.0014 (13) |
N5 | 0.038 (2) | 0.026 (2) | 0.066 (3) | 0.0021 (18) | 0.010 (2) | 0.007 (2) |
C1 | 0.016 (2) | 0.024 (2) | 0.021 (2) | −0.0007 (17) | 0.0006 (17) | 0.0096 (18) |
C2 | 0.019 (2) | 0.014 (2) | 0.034 (2) | 0.0006 (17) | 0.0008 (18) | 0.0044 (18) |
C3 | 0.026 (2) | 0.032 (3) | 0.022 (2) | 0.0100 (19) | 0.0026 (18) | −0.0023 (19) |
C4 | 0.025 (2) | 0.024 (2) | 0.027 (2) | 0.0031 (18) | 0.0018 (18) | 0.0095 (19) |
C5 | 0.019 (2) | 0.018 (2) | 0.024 (2) | 0.0073 (17) | 0.0014 (17) | 0.0041 (17) |
C6 | 0.011 (2) | 0.018 (2) | 0.020 (2) | 0.0034 (16) | −0.0032 (16) | 0.0025 (17) |
C7 | 0.041 (3) | 0.031 (3) | 0.016 (2) | 0.010 (2) | −0.0018 (19) | 0.0081 (18) |
C8 | 0.023 (4) | 0.021 (4) | 0.010 (3) | −0.006 (3) | 0.007 (3) | 0.001 (3) |
C8A | 0.023 (4) | 0.022 (4) | 0.014 (3) | 0.002 (3) | −0.003 (3) | −0.002 (3) |
C9 | 0.026 (4) | 0.031 (4) | 0.005 (3) | −0.011 (3) | 0.001 (3) | 0.005 (3) |
C9A | 0.023 (4) | 0.020 (4) | 0.018 (4) | −0.008 (3) | 0.007 (3) | −0.004 (3) |
C10 | 0.027 (2) | 0.028 (3) | 0.028 (2) | 0.0022 (19) | 0.0027 (19) | −0.0145 (19) |
C11 | 0.018 (2) | 0.027 (2) | 0.029 (2) | 0.0058 (19) | 0.0119 (18) | 0.0048 (19) |
C12 | 0.020 (2) | 0.023 (2) | 0.037 (3) | 0.0069 (18) | 0.0086 (19) | 0.002 (2) |
C13 | 0.027 (2) | 0.047 (3) | 0.035 (3) | 0.011 (2) | 0.011 (2) | 0.004 (2) |
C14 | 0.038 (3) | 0.060 (4) | 0.042 (3) | 0.031 (3) | 0.018 (2) | 0.021 (3) |
C15 | 0.046 (3) | 0.020 (3) | 0.081 (4) | 0.015 (2) | 0.041 (3) | 0.012 (3) |
C16 | 0.033 (3) | 0.020 (2) | 0.051 (3) | 0.006 (2) | 0.023 (2) | 0.002 (2) |
C17 | 0.017 (2) | 0.032 (3) | 0.029 (3) | 0.0038 (19) | 0.0140 (18) | 0.011 (2) |
C18 | 0.032 (3) | 0.019 (2) | 0.051 (3) | −0.001 (2) | 0.022 (2) | 0.001 (2) |
C19 | 0.023 (2) | 0.042 (3) | 0.040 (3) | −0.010 (2) | 0.012 (2) | −0.009 (2) |
C20 | 0.021 (2) | 0.028 (2) | 0.029 (2) | −0.0051 (18) | 0.0076 (18) | 0.0014 (19) |
C21 | 0.017 (2) | 0.020 (2) | 0.026 (2) | −0.0020 (17) | 0.0062 (17) | 0.0038 (17) |
C22 | 0.017 (2) | 0.019 (2) | 0.025 (2) | −0.0032 (17) | 0.0125 (17) | 0.0078 (18) |
C23 | 0.021 (2) | 0.030 (3) | 0.023 (2) | 0.0068 (19) | 0.0043 (18) | 0.0100 (18) |
C24 | 0.027 (2) | 0.031 (2) | 0.0126 (18) | 0.0032 (19) | 0.0035 (16) | 0.0064 (18) |
C25 | 0.038 (3) | 0.021 (2) | 0.018 (2) | 0.0033 (18) | −0.0037 (18) | 0.0051 (17) |
C26 | 0.021 (2) | 0.024 (2) | 0.016 (2) | −0.0046 (18) | 0.0014 (17) | −0.0018 (16) |
C27 | 0.017 (2) | 0.022 (2) | 0.014 (2) | −0.0009 (17) | 0.0030 (16) | −0.0018 (17) |
C28 | 0.018 (2) | 0.016 (2) | 0.022 (2) | 0.0040 (16) | 0.0035 (17) | −0.0015 (16) |
C29 | 0.024 (2) | 0.030 (2) | 0.014 (2) | 0.0045 (18) | 0.0055 (16) | −0.0016 (18) |
C30 | 0.023 (2) | 0.019 (2) | 0.023 (2) | −0.0054 (17) | 0.0064 (17) | 0.0068 (17) |
C31 | 0.016 (2) | 0.013 (2) | 0.032 (2) | 0.0020 (17) | 0.0011 (17) | 0.0000 (17) |
C32 | 0.013 (2) | 0.018 (2) | 0.020 (2) | 0.0013 (16) | 0.0037 (16) | −0.0052 (16) |
C33 | 0.017 (2) | 0.013 (2) | 0.073 (3) | 0.0064 (19) | 0.014 (2) | 0.006 (3) |
C34 | 0.039 (2) | 0.024 (2) | 0.058 (3) | 0.008 (2) | 0.008 (2) | 0.013 (2) |
Cu1—N1 | 2.024 (3) | C10—C11 | 1.478 (5) |
Cu1—N2 | 2.024 (3) | C11—C12 | 1.375 (5) |
Cu1—N3 | 2.039 (3) | C11—C16 | 1.378 (5) |
Cu1—N4 | 2.014 (3) | C12—H12A | 0.950 |
Cu2—Cl5 | 2.0862 (14) | C12—C13 | 1.380 (5) |
Cu2—Cl6 | 2.171 (5) | C13—H13A | 0.950 |
Cu2—Cl6A | 2.072 (4) | C13—C14 | 1.388 (5) |
Cl1—C1 | 1.752 (4) | C14—H14A | 0.950 |
Cl2—C16 | 1.741 (4) | C14—C15 | 1.346 (6) |
Cl3—C17 | 1.737 (4) | C15—H15A | 0.950 |
Cl4—C32 | 1.747 (3) | C15—C16 | 1.387 (6) |
N1—C7 | 1.277 (4) | C17—C18 | 1.367 (5) |
N1—C8 | 1.535 (8) | C17—C22 | 1.399 (5) |
N1—C8A | 1.502 (8) | C18—H18A | 0.950 |
N2—C9 | 1.534 (8) | C18—C19 | 1.373 (5) |
N2—C9A | 1.456 (9) | C19—H19A | 0.950 |
N2—C10 | 1.272 (4) | C19—C20 | 1.390 (5) |
N3—C23 | 1.278 (4) | C20—H20A | 0.950 |
N3—C24 | 1.473 (4) | C20—C21 | 1.368 (5) |
N4—C25 | 1.475 (4) | C21—H21A | 0.950 |
N4—C26 | 1.264 (4) | C21—C22 | 1.380 (5) |
N5—C33 | 1.134 (5) | C22—C23 | 1.457 (5) |
C1—C2 | 1.384 (5) | C23—H23A | 0.950 |
C1—C6 | 1.397 (5) | C24—H24A | 0.990 |
C2—H2A | 0.950 | C24—H24B | 0.990 |
C2—C3 | 1.371 (5) | C24—C25 | 1.521 (4) |
C3—H3A | 0.950 | C25—H25A | 0.990 |
C3—C4 | 1.402 (5) | C25—H25B | 0.990 |
C4—H4A | 0.950 | C26—H26A | 0.950 |
C4—C5 | 1.384 (5) | C26—C27 | 1.470 (4) |
C5—H5A | 0.950 | C27—C28 | 1.401 (4) |
C5—C6 | 1.389 (4) | C27—C32 | 1.395 (5) |
C6—C7 | 1.461 (5) | C28—H28A | 0.950 |
C7—H7A | 0.950 | C28—C29 | 1.385 (4) |
C8—H8A | 0.990 | C29—H29A | 0.950 |
C8—H8B | 0.990 | C29—C30 | 1.384 (5) |
C8—C9 | 1.539 (16) | C30—H30A | 0.950 |
C8A—H8AA | 0.990 | C30—C31 | 1.353 (4) |
C8A—H8AB | 0.990 | C31—H31A | 0.950 |
C8A—C9A | 1.505 (14) | C31—C32 | 1.397 (5) |
C9—H9A | 0.990 | C33—C34 | 1.457 (5) |
C9—H9B | 0.990 | C34—H34A | 0.980 |
C9A—H9AA | 0.990 | C34—H34B | 0.980 |
C9A—H9AB | 0.990 | C34—H34C | 0.980 |
C10—H10A | 0.950 | ||
N1—Cu1—N2 | 85.09 (12) | C11—C12—C13 | 120.6 (4) |
N1—Cu1—N3 | 129.33 (12) | H12A—C12—C13 | 119.7 |
N1—Cu1—N4 | 115.87 (13) | C12—C13—H13A | 120.3 |
N2—Cu1—N3 | 115.33 (12) | C12—C13—C14 | 119.4 (4) |
N2—Cu1—N4 | 132.11 (11) | H13A—C13—C14 | 120.3 |
N3—Cu1—N4 | 85.18 (12) | C13—C14—H14A | 119.5 |
Cl5—Cu2—Cl6 | 170.5 (4) | C13—C14—C15 | 121.0 (4) |
Cl5—Cu2—Cl6A | 170.3 (4) | H14A—C14—C15 | 119.5 |
Cu1—N1—C7 | 134.7 (3) | C14—C15—H15A | 120.6 |
Cu1—N1—C8 | 108.2 (3) | C14—C15—C16 | 118.9 (4) |
Cu1—N1—C8A | 106.0 (3) | H15A—C15—C16 | 120.6 |
C7—N1—C8 | 116.8 (4) | Cl2—C16—C11 | 119.5 (3) |
C7—N1—C8A | 114.6 (4) | Cl2—C16—C15 | 118.6 (4) |
Cu1—N2—C9 | 108.7 (4) | C11—C16—C15 | 121.8 (4) |
Cu1—N2—C9A | 107.1 (4) | Cl3—C17—C18 | 118.3 (3) |
Cu1—N2—C10 | 133.5 (3) | Cl3—C17—C22 | 119.8 (3) |
C9—N2—C10 | 117.8 (4) | C18—C17—C22 | 121.9 (4) |
C9A—N2—C10 | 114.9 (4) | C17—C18—H18A | 120.2 |
Cu1—N3—C23 | 132.8 (3) | C17—C18—C19 | 119.5 (4) |
Cu1—N3—C24 | 109.4 (2) | H18A—C18—C19 | 120.2 |
C23—N3—C24 | 117.1 (3) | C18—C19—H19A | 120.1 |
Cu1—N4—C25 | 109.2 (2) | C18—C19—C20 | 119.7 (4) |
Cu1—N4—C26 | 131.7 (2) | H19A—C19—C20 | 120.1 |
C25—N4—C26 | 117.3 (3) | C19—C20—H20A | 119.9 |
Cl1—C1—C2 | 117.5 (3) | C19—C20—C21 | 120.2 (4) |
Cl1—C1—C6 | 119.9 (3) | H20A—C20—C21 | 119.9 |
C2—C1—C6 | 122.6 (3) | C20—C21—H21A | 119.4 |
C1—C2—H2A | 120.0 | C20—C21—C22 | 121.3 (4) |
C1—C2—C3 | 120.0 (3) | H21A—C21—C22 | 119.4 |
H2A—C2—C3 | 120.0 | C17—C22—C21 | 117.4 (4) |
C2—C3—H3A | 120.5 | C17—C22—C23 | 121.4 (4) |
C2—C3—C4 | 119.1 (4) | C21—C22—C23 | 120.8 (3) |
H3A—C3—C4 | 120.5 | N3—C23—C22 | 122.3 (3) |
C3—C4—H4A | 120.1 | N3—C23—H23A | 118.9 |
C3—C4—C5 | 119.8 (4) | C22—C23—H23A | 118.9 |
H4A—C4—C5 | 120.1 | N3—C24—H24A | 109.7 |
C4—C5—H5A | 118.9 | N3—C24—H24B | 109.7 |
C4—C5—C6 | 122.2 (3) | N3—C24—C25 | 110.0 (3) |
H5A—C5—C6 | 118.9 | H24A—C24—H24B | 108.2 |
C1—C6—C5 | 116.2 (3) | H24A—C24—C25 | 109.7 |
C1—C6—C7 | 121.9 (3) | H24B—C24—C25 | 109.7 |
C5—C6—C7 | 121.8 (3) | N4—C25—C24 | 109.9 (3) |
N1—C7—C6 | 123.6 (3) | N4—C25—H25A | 109.7 |
N1—C7—H7A | 118.2 | N4—C25—H25B | 109.7 |
C6—C7—H7A | 118.2 | C24—C25—H25A | 109.7 |
N1—C8—H8A | 110.4 | C24—C25—H25B | 109.7 |
N1—C8—H8B | 110.4 | H25A—C25—H25B | 108.2 |
N1—C8—C9 | 106.8 (8) | N4—C26—H26A | 118.4 |
H8A—C8—H8B | 108.6 | N4—C26—C27 | 123.2 (3) |
H8A—C8—C9 | 110.4 | H26A—C26—C27 | 118.4 |
H8B—C8—C9 | 110.4 | C26—C27—C28 | 121.1 (3) |
N1—C8A—H8AA | 110.8 | C26—C27—C32 | 122.2 (3) |
N1—C8A—H8AB | 110.8 | C28—C27—C32 | 116.6 (3) |
N1—C8A—C9A | 104.8 (9) | C27—C28—H28A | 119.3 |
H8AA—C8A—H8AB | 108.9 | C27—C28—C29 | 121.4 (3) |
H8AA—C8A—C9A | 110.8 | H28A—C28—C29 | 119.3 |
H8AB—C8A—C9A | 110.8 | C28—C29—H29A | 119.9 |
N2—C9—C8 | 104.3 (7) | C28—C29—C30 | 120.3 (3) |
N2—C9—H9A | 110.9 | H29A—C29—C30 | 119.9 |
N2—C9—H9B | 110.9 | C29—C30—H30A | 120.1 |
C8—C9—H9A | 110.9 | C29—C30—C31 | 119.8 (3) |
C8—C9—H9B | 110.9 | H30A—C30—C31 | 120.1 |
H9A—C9—H9B | 108.9 | C30—C31—H31A | 119.8 |
N2—C9A—C8A | 109.3 (8) | C30—C31—C32 | 120.3 (3) |
N2—C9A—H9AA | 109.8 | H31A—C31—C32 | 119.8 |
N2—C9A—H9AB | 109.8 | Cl4—C32—C27 | 119.0 (3) |
C8A—C9A—H9AA | 109.8 | Cl4—C32—C31 | 119.3 (3) |
C8A—C9A—H9AB | 109.8 | C27—C32—C31 | 121.6 (3) |
H9AA—C9A—H9AB | 108.3 | N5—C33—C34 | 178.6 (5) |
N2—C10—H10A | 118.2 | C33—C34—H34A | 109.5 |
N2—C10—C11 | 123.6 (4) | C33—C34—H34B | 109.5 |
H10A—C10—C11 | 118.2 | C33—C34—H34C | 109.5 |
C10—C11—C12 | 120.0 (4) | H34A—C34—H34B | 109.5 |
C10—C11—C16 | 121.7 (4) | H34A—C34—H34C | 109.5 |
C12—C11—C16 | 118.2 (4) | H34B—C34—H34C | 109.5 |
C11—C12—H12A | 119.7 | ||
N2—Cu1—N1—C7 | 173.7 (4) | Cu1—N2—C9A—C8A | −39.7 (11) |
N2—Cu1—N1—C8 | −12.8 (5) | C10—N2—C9A—C8A | 160.5 (8) |
N2—Cu1—N1—C8A | 20.7 (5) | N1—C8A—C9A—N2 | 58.0 (12) |
N3—Cu1—N1—C7 | −67.3 (4) | Cu1—N2—C10—C11 | 13.9 (6) |
N3—Cu1—N1—C8 | 106.2 (5) | C9—N2—C10—C11 | −163.3 (6) |
N3—Cu1—N1—C8A | 139.7 (5) | C9A—N2—C10—C11 | 166.7 (6) |
N4—Cu1—N1—C7 | 38.8 (4) | N2—C10—C11—C12 | 32.2 (5) |
N4—Cu1—N1—C8 | −147.7 (5) | N2—C10—C11—C16 | −151.3 (4) |
N4—Cu1—N1—C8A | −114.3 (5) | C10—C11—C12—C13 | 177.4 (3) |
N1—Cu1—N2—C9 | −18.2 (5) | C16—C11—C12—C13 | 0.8 (5) |
N1—Cu1—N2—C9A | 10.1 (5) | C11—C12—C13—C14 | 0.1 (6) |
N1—Cu1—N2—C10 | 164.5 (4) | C12—C13—C14—C15 | −1.2 (6) |
N3—Cu1—N2—C9 | −149.7 (5) | C13—C14—C15—C16 | 1.3 (6) |
N3—Cu1—N2—C9A | −121.4 (5) | C10—C11—C16—Cl2 | 2.5 (5) |
N3—Cu1—N2—C10 | 32.9 (4) | C10—C11—C16—C15 | −177.3 (3) |
N4—Cu1—N2—C9 | 102.6 (5) | C12—C11—C16—Cl2 | 179.1 (3) |
N4—Cu1—N2—C9A | 131.0 (5) | C12—C11—C16—C15 | −0.7 (6) |
N4—Cu1—N2—C10 | −74.7 (4) | C14—C15—C16—Cl2 | 179.9 (3) |
N1—Cu1—N3—C23 | −80.8 (4) | C14—C15—C16—C11 | −0.3 (6) |
N1—Cu1—N3—C24 | 110.1 (2) | Cl3—C17—C18—C19 | −179.5 (3) |
N2—Cu1—N3—C23 | 24.6 (4) | C22—C17—C18—C19 | 1.4 (6) |
N2—Cu1—N3—C24 | −144.5 (2) | C17—C18—C19—C20 | −0.9 (5) |
N4—Cu1—N3—C23 | 159.4 (3) | C18—C19—C20—C21 | 1.0 (5) |
N4—Cu1—N3—C24 | −9.7 (2) | C19—C20—C21—C22 | −1.6 (5) |
N1—Cu1—N4—C25 | −146.6 (2) | C20—C21—C22—C17 | 2.0 (5) |
N1—Cu1—N4—C26 | 17.4 (4) | C20—C21—C22—C23 | 175.3 (3) |
N2—Cu1—N4—C25 | 105.4 (2) | Cl3—C17—C22—C21 | 179.0 (3) |
N2—Cu1—N4—C26 | −90.7 (3) | Cl3—C17—C22—C23 | 5.7 (5) |
N3—Cu1—N4—C25 | −14.8 (2) | C18—C17—C22—C21 | −1.9 (5) |
N3—Cu1—N4—C26 | 149.2 (3) | C18—C17—C22—C23 | −175.2 (3) |
Cl1—C1—C2—C3 | 179.6 (3) | Cu1—N3—C23—C22 | 17.5 (5) |
C6—C1—C2—C3 | −1.5 (5) | C24—N3—C23—C22 | −174.1 (3) |
C1—C2—C3—C4 | 1.1 (5) | C17—C22—C23—N3 | −151.8 (3) |
C2—C3—C4—C5 | 0.2 (5) | C21—C22—C23—N3 | 35.1 (5) |
C3—C4—C5—C6 | −1.2 (5) | Cu1—N3—C24—C25 | 31.7 (3) |
C4—C5—C6—C1 | 0.8 (5) | C23—N3—C24—C25 | −139.3 (3) |
C4—C5—C6—C7 | 177.9 (3) | Cu1—N4—C25—C24 | 36.0 (3) |
Cl1—C1—C6—C5 | 179.4 (3) | C26—N4—C25—C24 | −130.6 (3) |
Cl1—C1—C6—C7 | 2.2 (5) | N3—C24—C25—N4 | −45.2 (4) |
C2—C1—C6—C5 | 0.6 (5) | Cu1—N4—C26—C27 | 20.8 (5) |
C2—C1—C6—C7 | −176.6 (3) | C25—N4—C26—C27 | −176.3 (3) |
Cu1—N1—C7—C6 | 14.4 (6) | N4—C26—C27—C28 | 36.1 (5) |
C8—N1—C7—C6 | −158.7 (6) | N4—C26—C27—C32 | −147.7 (3) |
C8A—N1—C7—C6 | 165.8 (6) | C26—C27—C28—C29 | 177.1 (3) |
C1—C6—C7—N1 | −155.8 (4) | C32—C27—C28—C29 | 0.8 (5) |
C5—C6—C7—N1 | 27.2 (6) | C27—C28—C29—C30 | 0.6 (5) |
Cu1—N1—C8—C9 | 41.2 (10) | C28—C29—C30—C31 | −1.3 (5) |
C7—N1—C8—C9 | −143.9 (7) | C29—C30—C31—C32 | 0.5 (5) |
Cu1—N1—C8A—C9A | −46.2 (10) | C26—C27—C32—Cl4 | 4.2 (4) |
C7—N1—C8A—C9A | 154.6 (7) | C26—C27—C32—C31 | −177.9 (3) |
Cu1—N2—C9—C8 | 44.6 (10) | C28—C27—C32—Cl4 | −179.5 (3) |
C9A—N2—C9—C8 | −46.6 (12) | C28—C27—C32—C31 | −1.6 (5) |
C10—N2—C9—C8 | −137.6 (7) | C30—C31—C32—Cl4 | 178.9 (3) |
N1—C8—C9—N2 | −55.7 (11) | C30—C31—C32—C27 | 1.0 (5) |
Experimental details
Crystal data | |
Chemical formula | [Cu(C16H14Cl2N2)2][CuCl2]·C2H3N |
Mr | 849.42 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 120 |
a, b, c (Å) | 7.845 (5), 16.965 (10), 26.915 (15) |
β (°) | 97.896 (9) |
V (Å3) | 3548 (4) |
Z | 4 |
Radiation type | Synchrotron, λ = 0.8462 Å |
µ (mm−1) | 1.68 |
Crystal size (mm) | 0.10 × 0.10 × 0.10 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | Multi-scan (TWINABS; Bruker, 2004) |
Tmin, Tmax | 0.730, 0.850 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 30485, 30485, 15283 |
Rint | 0.000 |
(sin θ/λ)max (Å−1) | 0.625 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.056, 0.127, 0.79 |
No. of reflections | 30485 |
No. of parameters | 456 |
No. of restraints | 24 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.71, −0.84 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXTL (Bruker, 2005) and local programs.
Cu1—N1 | 2.024 (3) | Cu2—Cl6 | 2.171 (5) |
Cu1—N2 | 2.024 (3) | N1—C7 | 1.277 (4) |
Cu1—N3 | 2.039 (3) | N1—C8 | 1.535 (8) |
Cu1—N4 | 2.014 (3) | N1—C8A | 1.502 (8) |
Cu2—Cl5 | 2.0862 (14) | N2—C9 | 1.534 (8) |
N1—Cu1—N2 | 85.09 (12) | Cl5—Cu2—Cl6 | 170.5 (4) |
N1—Cu1—N4 | 115.87 (13) | Cu1—N2—C9 | 108.7 (4) |
N2—Cu1—N3 | 115.33 (12) | Cu1—N2—C10 | 133.5 (3) |
N3—Cu1—N4 | 85.18 (12) |
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The coordination chemistry of copper(I) complexes has received increased attention over the last few decades. This is mainly due to the potential application of these complexes in catalytic processes (Fife et al., 1985; Bowker et al., 1988; Bowmarker et al. 2000), photosensitization reactions (Horváth, 1994; Kutal, 1990), light-harvesting studies (Rosi et al., 1999; Dietrich-Buchecker & Sauvage, 1987) and the design of supramolecular arrays (Meghdadi et al., 2002; Foster et al. 2000). Reaction of copper(I) halides, CuX, with nitrogen-based ligands (L) yields CuXLn adducts. The steric, electronic and conformational effects imparted by the coordinated ligands play an important role in influencing the properties of the resulting metal complexes. A thorough understanding of these effects can serve as the basis for the rational design of complexes with specific and predictable properties. The number of ligands bound to the monovalent CuI ion is greatly influenced by both the chemical nature and the geometry of the ligand L, and the particular choice of halogen X (Lange et al., 2000). Although structural reports on [CuIL4]+ complex cations (where L is an N-donor ligand) are numerous (Alcon et al., 2000; Miller & Karpishin, 1999; Panja et al., 2002), there are a limited number of studies of copper(I) complexes with isolated linear dihalidocuprate(I) anions (Amirnasr et al., 2005; Mirkhani et al., 2004). The structures of halidocuprate(I) compounds are exceptionally varied, and the nature of the cation plays an important role in determining the coordination number of CuI in halidocuprates and the tendency of the anions to form extended structures (Andersson & Jagner, 1989; Hasselgren et al., 1999). Thus, bulky cations with well screened charges tend to favour the formation of discrete anions in which CuI has a low coordination number. It has been recognized that cation properties, such as size, shape and the distribution of positive charge, are of importance for the anion configurations adopted by halidocuprates(I).
In this context, we decided to examine the nature of the complex formed with an unconjugated diimine ligand. The title complex, (I), was prepared by reacting the bidentate ligand N,N'-bis(2-chlorobenzylidene)ethylenediamine (cb2en) with CuCl. The structure determination of (I) is consistent with the stoichiometry of a 1:1 copper(I) chloride–ligand adduct, [CuCl(L)]. The structural connectivity, however, is that of an ionic complex, the asymmetric unit of the structure comprising a bis(ligand)copper(I) cation and a dichloridocuprate(I) anion, together with a molecule of acetonitrile solvent, [L2Cu]+[CuCl2]-·MeCN (Fig. 1).
The anion of (I) has no crystallographic symmetry, and one Cl atom is disordered over two sites. Neither of these gives a completely linear coordination (Table 1). The geometry is in good agreement with that of several other previous examples (Kaiser et al., 1974; Engelhardt et al., 1984).
The cation of (I) has a markedly flattened tetrahedral geometry and also lies in a general position with no crystallographic symmetry. The angles at the CuI atom in the cation are similar to the corresponding angles for ethylenediamine complexes (Engelhardt et al., 1984), with a small bite angle for the chelating ligand. The two ligands form a double-helical arrangement around the CuI atom. Within the cation, the two benzene rings of each ligand are almost parallel to those of the other, with dihedral angles of 2.73 (16)° for rings C1–C6 and C27–C32, and 0.38 (17)° for rings C11–C16 and C17–C22, with interplanar spacings of about 3.6 Å in each case. This does not give rise to intramolecular π–π stacking, since the pairs of rings are substantially displaced laterally, the centroid-to-centroid distances being 4.877 (4) and 4.846 (4) Å, respectively. However, the same pairs of rings are similarly close to parallel in adjacent molecules along the short a axis (dihedral angles are the same by symmetry), and here there is intermolecular π–π stacking (Fig. 2), the centroid-to-centroid distances being 3.645 (3) and 3.536 (3) Å, respectively, and the interplanar spacings being 3.532 and 3.523 Å, respectively. This stacking produces columns of cations along the a axis, with anions and solvent molecules occupying the channels between them (Fig. 3).