

Supporting information
![]() | Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536808017273/kj2084sup1.cif |
![]() | Structure factor file (CIF format) https://doi.org/10.1107/S1600536808017273/kj2084Isup2.hkl |
CCDC reference: 696425
Key indicators
- Single-crystal X-ray study
- T = 293 K
- Mean
(C-C) = 0.006 Å
- Disorder in main residue
- R factor = 0.049
- wR factor = 0.117
- Data-to-parameter ratio = 14.1
checkCIF/PLATON results
No syntax errors found
Alert level C PLAT301_ALERT_3_C Main Residue Disorder ......................... 14.00 Perc. PLAT380_ALERT_4_C Check Incorrectly? Oriented X(sp2)-Methyl Moiety C9 PLAT380_ALERT_4_C Check Incorrectly? Oriented X(sp2)-Methyl Moiety C10 PLAT380_ALERT_4_C Check Incorrectly? Oriented X(sp2)-Methyl Moiety C19 PLAT380_ALERT_4_C Check Incorrectly? Oriented X(sp2)-Methyl Moiety C20 PLAT720_ALERT_4_C Number of Unusual/Non-Standard Labels .......... 1
Alert level G REFLT03_ALERT_4_G Please check that the estimate of the number of Friedel pairs is correct. If it is not, please give the correct count in the _publ_section_exptl_refinement section of the submitted CIF. From the CIF: _diffrn_reflns_theta_max 25.99 From the CIF: _reflns_number_total 5775 Count of symmetry unique reflns 3342 Completeness (_total/calc) 172.80% TEST3: Check Friedels for noncentro structure Estimate of Friedel pairs measured 2433 Fraction of Friedel pairs measured 0.728 Are heavy atom types Z>Si present yes PLAT199_ALERT_1_G Check the Reported _cell_measurement_temperature 293 K PLAT302_ALERT_4_G Anion/Solvent Disorder ......................... 21.00 Perc.
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 6 ALERT level C = Check and explain 3 ALERT level G = General alerts; check 1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 0 ALERT type 2 Indicator that the structure model may be wrong or deficient 1 ALERT type 3 Indicator that the structure quality may be low 7 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check
The title complex was synthesized by the reaction of 4,5-dimethyl-2- (2-pyridyl)imidazole (0.52 g, 3.0 mmol) and imidazole (0.10 g, 1.5 mmol) with copper(II) perchlorate (0.50 g, 1.5 mmol) dissolved in the methanol (20 ml). Single crystals of (I) suitable for X-ray diffraction were obtained by evaporation of the methanol solution at room temperature.
All H atoms were allowed to ride on their parent atoms at distances of 0.96Å (methyl H), 0.93Å (pyridyl H), 0.93Å (imidazole H) and 0.86Å (N—H imidazole), and with Uiso(H) values of 1.2–1.5 times Ueq of the parent atom.
Data collection: SMART (Bruker, 2000); cell refinement: CrystalClear (Rigaku, 2005); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
[Cu(C3H4N2)(C10H11N3)2](ClO4)2 | Dx = 1.532 Mg m−3 |
Mr = 676.96 | Mo Kα radiation, λ = 0.71073 Å |
Tetragonal, P41212 | Cell parameters from 8320 reflections |
Hall symbol: P 4abw 2nw | θ = 2.5–23.8° |
a = 14.6374 (5) Å | µ = 0.99 mm−1 |
c = 27.3945 (14) Å | T = 293 K |
V = 5869.4 (4) Å3 | Bipyramid, green |
Z = 8 | 0.32 × 0.26 × 0.24 mm |
F(000) = 2776 |
Bruker SMART APEX CCD area-detector diffractometer | 5775 independent reflections |
Radiation source: sealed tube | 5315 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.048 |
ϕ and ω scans | θmax = 26.0°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | h = −18→14 |
Tmin = 0.74, Tmax = 0.79 | k = −18→18 |
32170 measured reflections | l = −33→27 |
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)] = 0.048 | H-atom parameters constrained |
wR(F2) = 0.117 | w = 1/[σ2(Fo2) + (0.049P)2 + 5.1204P] where P = (Fo2 + 2Fc2)/3 |
S = 1.08 | (Δ/σ)max < 0.001 |
5775 reflections | Δρmax = 0.54 e Å−3 |
410 parameters | Δρmin = −0.64 e Å−3 |
0 restraints | Absolute structure: Flack (1983), 2433 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.013 (17) |
[Cu(C3H4N2)(C10H11N3)2](ClO4)2 | Z = 8 |
Mr = 676.96 | Mo Kα radiation |
Tetragonal, P41212 | µ = 0.99 mm−1 |
a = 14.6374 (5) Å | T = 293 K |
c = 27.3945 (14) Å | 0.32 × 0.26 × 0.24 mm |
V = 5869.4 (4) Å3 |
Bruker SMART APEX CCD area-detector diffractometer | 5775 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 5315 reflections with I > 2σ(I) |
Tmin = 0.74, Tmax = 0.79 | Rint = 0.048 |
32170 measured reflections |
R[F2 > 2σ(F2)] = 0.048 | H-atom parameters constrained |
wR(F2) = 0.117 | Δρmax = 0.54 e Å−3 |
S = 1.08 | Δρmin = −0.64 e Å−3 |
5775 reflections | Absolute structure: Flack (1983), 2433 Friedel pairs |
410 parameters | Absolute structure parameter: 0.013 (17) |
0 restraints |
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) | |
Cu1 | 0.49074 (3) | 0.81891 (3) | 0.002420 (17) | 0.04289 (13) | |
C1 | 0.5381 (3) | 0.7035 (3) | −0.09104 (15) | 0.0491 (10) | |
H1A | 0.5698 | 0.7544 | −0.1023 | 0.059* | |
C2 | 0.5351 (3) | 0.6266 (3) | −0.12011 (16) | 0.0560 (11) | |
H2A | 0.5649 | 0.6258 | −0.1501 | 0.067* | |
C3 | 0.4875 (3) | 0.5508 (3) | −0.10421 (17) | 0.0590 (12) | |
H3B | 0.4848 | 0.4985 | −0.1234 | 0.071* | |
C4 | 0.4438 (3) | 0.5534 (3) | −0.05947 (17) | 0.0547 (10) | |
H4A | 0.4104 | 0.5037 | −0.0482 | 0.066* | |
C5 | 0.4516 (3) | 0.6338 (3) | −0.03163 (14) | 0.0406 (8) | |
C6 | 0.4098 (3) | 0.6474 (3) | 0.01525 (14) | 0.0434 (9) | |
C7 | 0.3344 (3) | 0.6321 (3) | 0.08455 (16) | 0.0555 (11) | |
C8 | 0.3702 (3) | 0.7184 (3) | 0.08219 (16) | 0.0531 (11) | |
C9 | 0.2772 (4) | 0.5869 (4) | 0.1227 (2) | 0.0822 (17) | |
H9A | 0.2638 | 0.5254 | 0.1128 | 0.123* | |
H9B | 0.2213 | 0.6202 | 0.1267 | 0.123* | |
H9C | 0.3099 | 0.5859 | 0.1531 | 0.123* | |
C10 | 0.3611 (5) | 0.7958 (5) | 0.1173 (2) | 0.0863 (19) | |
H10A | 0.3258 | 0.7764 | 0.1450 | 0.129* | |
H10B | 0.3309 | 0.8460 | 0.1016 | 0.129* | |
H10C | 0.4206 | 0.8147 | 0.1280 | 0.129* | |
C11 | 0.6139 (3) | 0.7685 (3) | 0.09316 (16) | 0.0532 (11) | |
H11A | 0.5641 | 0.7359 | 0.1051 | 0.064* | |
C12 | 0.6937 (3) | 0.7703 (3) | 0.12029 (17) | 0.0557 (11) | |
H12A | 0.6976 | 0.7394 | 0.1499 | 0.067* | |
C13 | 0.7668 (3) | 0.8185 (3) | 0.10272 (17) | 0.0579 (12) | |
H13A | 0.8209 | 0.8210 | 0.1205 | 0.070* | |
C14 | 0.7602 (3) | 0.8632 (3) | 0.05894 (17) | 0.0551 (11) | |
H14A | 0.8098 | 0.8950 | 0.0462 | 0.066* | |
C15 | 0.6777 (3) | 0.8597 (2) | 0.03390 (15) | 0.0412 (8) | |
C16 | 0.6608 (2) | 0.9028 (2) | −0.01296 (14) | 0.0383 (8) | |
C17 | 0.6694 (3) | 0.9807 (3) | −0.08144 (15) | 0.0502 (9) | |
C18 | 0.5849 (3) | 0.9440 (3) | −0.07755 (15) | 0.0479 (10) | |
C19 | 0.7111 (4) | 1.0404 (4) | −0.1201 (2) | 0.0766 (16) | |
H19A | 0.6671 | 1.0515 | −0.1454 | 0.115* | |
H19B | 0.7636 | 1.0104 | −0.1338 | 0.115* | |
H19C | 0.7294 | 1.0975 | −0.1059 | 0.115* | |
C20 | 0.5027 (4) | 0.9551 (4) | −0.1099 (2) | 0.0757 (16) | |
H20A | 0.5189 | 0.9907 | −0.1380 | 0.114* | |
H20B | 0.4550 | 0.9856 | −0.0921 | 0.114* | |
H20C | 0.4815 | 0.8961 | −0.1201 | 0.114* | |
C21 | 0.4109 (4) | 1.0078 (3) | 0.0069 (2) | 0.0658 (13) | 0.50 |
H21A | 0.4679 | 1.0357 | 0.0090 | 0.079* | 0.50 |
C22 | 0.2631 (3) | 0.9850 (4) | 0.0016 (2) | 0.075 (5) | 0.50 |
H22A | 0.2004 | 0.9950 | −0.0001 | 0.090* | 0.50 |
N8 | 0.3313 (4) | 1.0509 (4) | 0.00487 (19) | 0.069 (3) | 0.50 |
H8A | 0.3233 | 1.1091 | 0.0055 | 0.083* | 0.50 |
C23 | 0.3044 (3) | 0.9069 (5) | 0.0015 (2) | 0.0707 (14) | 0.50 |
H23A | 0.2751 | 0.8507 | −0.0010 | 0.085* | 0.50 |
N7 | 0.3958 (2) | 0.9177 (2) | 0.00537 (13) | 0.0492 (8) | 0.50 |
C23' | 0.4109 (4) | 1.0078 (3) | 0.0069 (2) | 0.0658 (13) | 0.50 |
H21B | 0.4679 | 1.0357 | 0.0090 | 0.079* | 0.50 |
N8' | 0.2631 (3) | 0.9850 (4) | 0.0016 (2) | 0.075 (3) | 0.50 |
H8'A | 0.2051 | 0.9942 | 0.0000 | 0.090* | 0.50 |
N7' | 0.3958 (2) | 0.9177 (2) | 0.00537 (13) | 0.0492 (8) | 0.50 |
C21' | 0.3044 (3) | 0.9069 (5) | 0.0015 (2) | 0.0707 (14) | 0.50 |
H23B | 0.2751 | 0.8507 | −0.0010 | 0.085* | 0.50 |
C22' | 0.3313 (4) | 1.0509 (4) | 0.00487 (19) | 0.069 (3) | 0.50 |
H22B | 0.3226 | 1.1138 | 0.0055 | 0.083* | 0.50 |
N1 | 0.4977 (2) | 0.7080 (2) | −0.04776 (12) | 0.0412 (7) | |
N2 | 0.4179 (2) | 0.7263 (2) | 0.03865 (12) | 0.0463 (8) | |
N3 | 0.3601 (2) | 0.5891 (2) | 0.04254 (14) | 0.0514 (9) | |
H3A | 0.3468 | 0.5338 | 0.0347 | 0.062* | |
N4 | 0.6058 (2) | 0.8120 (2) | 0.05027 (12) | 0.0420 (7) | |
N5 | 0.5794 (2) | 0.8946 (2) | −0.03395 (12) | 0.0419 (7) | |
N6 | 0.7161 (2) | 0.9535 (2) | −0.04085 (13) | 0.0481 (8) | |
H6 | 0.7720 | 0.9668 | −0.0343 | 0.058* | |
Cl1 | 0.32257 (8) | 0.32257 (8) | 0.0000 | 0.0702 (5) | |
O11 | 0.2532 (6) | 0.2691 (6) | −0.0184 (2) | 0.081 (3) | 0.50 |
O12 | 0.2849 (7) | 0.4105 (5) | 0.0068 (4) | 0.084 (2) | 0.50 |
O13 | 0.3603 (6) | 0.2882 (6) | 0.0403 (3) | 0.089 (3) | 0.50 |
O14 | 0.3877 (6) | 0.3325 (6) | −0.0371 (3) | 0.080 (2) | 0.50 |
Cl2 | 0.99578 (7) | 0.99578 (7) | 0.0000 | 0.0583 (4) | |
O21 | 0.9987 (3) | 0.9145 (2) | 0.02515 (14) | 0.0775 (11) | |
O22 | 1.0050 (3) | 1.0666 (3) | 0.03420 (14) | 0.0815 (12) | |
Cl3 | 0.66607 (8) | 0.15608 (7) | 0.02360 (4) | 0.0550 (3) | |
O31 | 0.7316 (3) | 0.1668 (3) | −0.01093 (13) | 0.0798 (12) | |
O32 | 0.6524 (3) | 0.2387 (3) | 0.04837 (15) | 0.0804 (12) | |
O33 | 0.6871 (3) | 0.0867 (3) | 0.05352 (15) | 0.0864 (13) | |
O34 | 0.5931 (3) | 0.1353 (3) | −0.00339 (17) | 0.0867 (12) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cu1 | 0.0378 (2) | 0.0426 (3) | 0.0483 (2) | −0.00376 (19) | 0.0047 (2) | 0.0029 (2) |
C1 | 0.043 (2) | 0.059 (3) | 0.046 (2) | −0.0063 (19) | 0.0089 (18) | 0.0013 (19) |
C2 | 0.050 (3) | 0.074 (3) | 0.044 (2) | 0.003 (2) | 0.0059 (19) | −0.011 (2) |
C3 | 0.069 (3) | 0.054 (3) | 0.054 (3) | 0.003 (2) | −0.006 (2) | −0.015 (2) |
C4 | 0.056 (3) | 0.045 (2) | 0.063 (3) | −0.0016 (19) | 0.001 (2) | −0.010 (2) |
C5 | 0.0354 (19) | 0.046 (2) | 0.041 (2) | −0.0006 (16) | −0.0021 (16) | −0.0004 (17) |
C6 | 0.041 (2) | 0.046 (2) | 0.043 (2) | −0.0021 (17) | 0.0036 (17) | 0.0039 (17) |
C7 | 0.049 (2) | 0.063 (3) | 0.055 (2) | −0.003 (2) | 0.005 (2) | 0.011 (2) |
C8 | 0.048 (2) | 0.066 (3) | 0.046 (2) | −0.006 (2) | 0.0104 (19) | 0.002 (2) |
C9 | 0.084 (4) | 0.086 (4) | 0.077 (4) | −0.002 (3) | 0.033 (3) | 0.025 (3) |
C10 | 0.099 (5) | 0.092 (4) | 0.068 (3) | −0.016 (4) | 0.025 (3) | −0.022 (3) |
C11 | 0.059 (3) | 0.047 (2) | 0.054 (3) | −0.007 (2) | −0.007 (2) | 0.014 (2) |
C12 | 0.061 (3) | 0.049 (2) | 0.057 (3) | −0.001 (2) | −0.015 (2) | 0.006 (2) |
C13 | 0.061 (3) | 0.054 (3) | 0.059 (3) | 0.007 (2) | −0.023 (2) | −0.004 (2) |
C14 | 0.043 (2) | 0.057 (3) | 0.066 (3) | −0.0044 (19) | −0.005 (2) | −0.006 (2) |
C15 | 0.040 (2) | 0.0344 (18) | 0.049 (2) | −0.0007 (16) | −0.0077 (17) | −0.0044 (16) |
C16 | 0.0306 (18) | 0.0389 (19) | 0.045 (2) | −0.0029 (15) | 0.0010 (15) | 0.0024 (16) |
C17 | 0.055 (2) | 0.046 (2) | 0.050 (2) | 0.0019 (19) | 0.0063 (19) | 0.0026 (18) |
C18 | 0.047 (2) | 0.049 (2) | 0.048 (2) | 0.0022 (18) | 0.0001 (18) | 0.0077 (18) |
C19 | 0.065 (3) | 0.079 (4) | 0.086 (4) | −0.009 (3) | 0.021 (3) | 0.025 (3) |
C20 | 0.072 (3) | 0.095 (4) | 0.060 (3) | 0.003 (3) | −0.010 (3) | 0.025 (3) |
C21 | 0.083 (4) | 0.044 (2) | 0.071 (3) | −0.003 (2) | 0.005 (3) | 0.005 (2) |
C22 | 0.055 (9) | 0.089 (11) | 0.081 (8) | 0.02 (11) | 0.01 (11) | 0.02 (13) |
N8 | 0.070 (7) | 0.068 (7) | 0.070 (6) | 0.02 (10) | 0.01 (9) | 0.02 (9) |
C23 | 0.046 (3) | 0.095 (4) | 0.071 (3) | −0.006 (3) | 0.008 (3) | −0.011 (3) |
N7 | 0.0397 (18) | 0.0479 (19) | 0.060 (2) | 0.0012 (14) | −0.0002 (17) | −0.0015 (17) |
C23' | 0.083 (4) | 0.044 (2) | 0.071 (3) | −0.003 (2) | 0.005 (3) | 0.005 (2) |
N8' | 0.055 (6) | 0.089 (6) | 0.081 (3) | 0.02 (10) | 0.01 (9) | 0.02 (11) |
N7' | 0.0397 (18) | 0.0479 (19) | 0.060 (2) | 0.0012 (14) | −0.0002 (17) | −0.0015 (17) |
C21' | 0.046 (3) | 0.095 (4) | 0.071 (3) | −0.006 (3) | 0.008 (3) | −0.011 (3) |
C22' | 0.070 (6) | 0.068 (6) | 0.070 (3) | 0.02 (11) | 0.01 (11) | 0.02 (10) |
N1 | 0.0327 (16) | 0.0462 (18) | 0.0449 (17) | −0.0019 (14) | 0.0006 (14) | −0.0035 (14) |
N2 | 0.0441 (19) | 0.051 (2) | 0.0436 (17) | −0.0092 (15) | 0.0047 (15) | −0.0012 (16) |
N3 | 0.050 (2) | 0.0419 (18) | 0.062 (2) | −0.0091 (15) | 0.0039 (17) | 0.0088 (17) |
N4 | 0.0422 (17) | 0.0372 (17) | 0.0465 (18) | −0.0048 (14) | −0.0034 (14) | 0.0044 (14) |
N5 | 0.0346 (16) | 0.0450 (18) | 0.0460 (17) | −0.0004 (13) | 0.0029 (14) | 0.0051 (14) |
N6 | 0.0363 (17) | 0.049 (2) | 0.059 (2) | −0.0059 (14) | −0.0003 (16) | 0.0036 (16) |
Cl1 | 0.0593 (6) | 0.0593 (6) | 0.0920 (13) | −0.0108 (8) | −0.0109 (8) | 0.0109 (8) |
O11 | 0.078 (6) | 0.075 (5) | 0.090 (6) | −0.035 (4) | 0.034 (5) | −0.009 (5) |
O12 | 0.102 (6) | 0.052 (4) | 0.098 (6) | −0.019 (4) | 0.015 (6) | −0.027 (5) |
O13 | 0.099 (6) | 0.096 (6) | 0.072 (5) | −0.050 (5) | −0.016 (5) | 0.027 (4) |
O14 | 0.095 (6) | 0.074 (5) | 0.072 (5) | −0.019 (5) | 0.031 (5) | −0.014 (4) |
Cl2 | 0.0531 (5) | 0.0531 (5) | 0.0686 (9) | −0.0092 (6) | 0.0084 (6) | −0.0084 (6) |
O21 | 0.094 (3) | 0.0521 (19) | 0.087 (2) | −0.0083 (19) | −0.043 (2) | 0.0116 (18) |
O22 | 0.093 (3) | 0.074 (2) | 0.078 (2) | −0.033 (2) | 0.039 (2) | −0.0269 (19) |
Cl3 | 0.0676 (7) | 0.0422 (5) | 0.0552 (6) | −0.0112 (5) | −0.0081 (5) | −0.0014 (4) |
O31 | 0.072 (2) | 0.097 (3) | 0.070 (2) | −0.031 (2) | 0.0292 (18) | −0.037 (2) |
O32 | 0.078 (2) | 0.064 (2) | 0.099 (3) | 0.0249 (19) | −0.039 (2) | −0.028 (2) |
O33 | 0.085 (3) | 0.083 (3) | 0.092 (3) | 0.039 (2) | −0.035 (2) | 0.013 (2) |
O34 | 0.095 (3) | 0.065 (2) | 0.101 (3) | −0.016 (2) | −0.024 (2) | −0.024 (2) |
Cu1—N5 | 1.977 (3) | C18—N5 | 1.398 (5) |
Cu1—N2 | 1.990 (3) | C18—C20 | 1.503 (7) |
Cu1—N7 | 2.007 (3) | C19—H19A | 0.9600 |
Cu1—N1 | 2.129 (3) | C19—H19B | 0.9600 |
Cu1—N4 | 2.137 (3) | C19—H19C | 0.9600 |
C1—N1 | 1.327 (5) | C20—H20A | 0.9600 |
C1—C2 | 1.380 (6) | C20—H20B | 0.9600 |
C1—H1A | 0.9300 | C20—H20C | 0.9600 |
C2—C3 | 1.380 (7) | C21—N8 | 1.326 (7) |
C2—H2A | 0.9300 | C21—N7 | 1.338 (6) |
C3—C4 | 1.383 (7) | C21—H21A | 0.9300 |
C3—H3B | 0.9300 | C22—C23 | 1.293 (8) |
C4—C5 | 1.407 (6) | C22—N8 | 1.392 (8) |
C4—H4A | 0.9300 | C22—H22A | 0.9300 |
C5—N1 | 1.352 (5) | N8—H8A | 0.8600 |
C5—C6 | 1.437 (5) | C23—N7 | 1.352 (6) |
C6—N2 | 1.326 (5) | C23—H23A | 0.9300 |
C6—N3 | 1.347 (5) | N3—H3A | 0.8600 |
C7—N3 | 1.364 (6) | N6—H6 | 0.8600 |
C7—C8 | 1.369 (6) | Cl1—O13 | 1.334 (8) |
C7—C9 | 1.493 (6) | Cl1—O13i | 1.334 (8) |
C8—N2 | 1.386 (5) | Cl1—O11i | 1.378 (7) |
C8—C10 | 1.492 (7) | Cl1—O11 | 1.378 (7) |
C9—H9A | 0.9600 | Cl1—O14i | 1.401 (8) |
C9—H9B | 0.9600 | Cl1—O14 | 1.401 (8) |
C9—H9C | 0.9600 | Cl1—O12 | 1.413 (8) |
C10—H10A | 0.9600 | Cl1—O12i | 1.413 (8) |
C10—H10B | 0.9600 | O11—O11i | 1.060 (15) |
C10—H10C | 0.9600 | O11—O13i | 1.551 (10) |
C11—N4 | 1.342 (5) | O12—O14i | 1.135 (11) |
C11—C12 | 1.385 (6) | O12—O13i | 1.486 (11) |
C11—H11A | 0.9300 | O13—O12i | 1.486 (11) |
C12—C13 | 1.369 (7) | O13—O14i | 1.515 (13) |
C12—H12A | 0.9300 | O13—O11i | 1.551 (10) |
C13—C14 | 1.369 (6) | O14—O12i | 1.135 (11) |
C13—H13A | 0.9300 | O14—O13i | 1.515 (13) |
C14—C15 | 1.391 (6) | Cl2—O21i | 1.375 (3) |
C14—H14A | 0.9300 | Cl2—O21 | 1.375 (3) |
C15—N4 | 1.340 (5) | Cl2—O22 | 1.403 (3) |
C15—C16 | 1.452 (5) | Cl2—O22i | 1.403 (3) |
C16—N5 | 1.327 (5) | Cl3—O34 | 1.334 (4) |
C16—N6 | 1.338 (5) | Cl3—O33 | 1.341 (4) |
C17—C18 | 1.353 (6) | Cl3—O31 | 1.356 (3) |
C17—N6 | 1.365 (5) | Cl3—O32 | 1.402 (4) |
C17—C19 | 1.504 (6) | ||
N5—Cu1—N2 | 170.20 (15) | C23—C22—N8 | 106.1 (4) |
N5—Cu1—N7 | 94.06 (14) | C23—C22—H22A | 127.0 |
N2—Cu1—N7 | 95.74 (15) | N8—C22—H22A | 127.0 |
N5—Cu1—N1 | 94.06 (13) | C21—N8—C22 | 107.7 (5) |
N2—Cu1—N1 | 80.10 (13) | C21—N8—H8A | 126.2 |
N7—Cu1—N1 | 127.46 (14) | C22—N8—H8A | 126.2 |
N5—Cu1—N4 | 79.52 (13) | C22—C23—N7 | 111.1 (5) |
N2—Cu1—N4 | 94.82 (13) | C22—C23—H23A | 124.4 |
N7—Cu1—N4 | 123.73 (14) | N7—C23—H23A | 124.4 |
N1—Cu1—N4 | 108.79 (13) | C21—N7—C23 | 106.3 (4) |
N1—C1—C2 | 122.9 (4) | C21—N7—Cu1 | 126.7 (3) |
N1—C1—H1A | 118.6 | C23—N7—Cu1 | 126.7 (4) |
C2—C1—H1A | 118.6 | C1—N1—C5 | 118.3 (3) |
C1—C2—C3 | 119.3 (4) | C1—N1—Cu1 | 129.5 (3) |
C1—C2—H2A | 120.4 | C5—N1—Cu1 | 112.2 (2) |
C3—C2—H2A | 120.4 | C6—N2—C8 | 107.4 (3) |
C2—C3—C4 | 119.4 (4) | C6—N2—Cu1 | 113.6 (3) |
C2—C3—H3B | 120.3 | C8—N2—Cu1 | 139.0 (3) |
C4—C3—H3B | 120.3 | C6—N3—C7 | 109.0 (4) |
C3—C4—C5 | 117.8 (4) | C6—N3—H3A | 125.5 |
C3—C4—H4A | 121.1 | C7—N3—H3A | 125.5 |
C5—C4—H4A | 121.1 | C15—N4—C11 | 118.1 (4) |
N1—C5—C4 | 122.4 (4) | C15—N4—Cu1 | 112.9 (3) |
N1—C5—C6 | 113.2 (3) | C11—N4—Cu1 | 129.0 (3) |
C4—C5—C6 | 124.4 (4) | C16—N5—C18 | 105.8 (3) |
N2—C6—N3 | 109.3 (4) | C16—N5—Cu1 | 114.9 (3) |
N2—C6—C5 | 120.9 (4) | C18—N5—Cu1 | 139.2 (3) |
N3—C6—C5 | 129.7 (4) | C16—N6—C17 | 108.8 (3) |
N3—C7—C8 | 106.2 (4) | C16—N6—H6 | 125.6 |
N3—C7—C9 | 122.7 (4) | C17—N6—H6 | 125.6 |
C8—C7—C9 | 131.0 (5) | O13—Cl1—O13i | 177.0 (6) |
C7—C8—N2 | 108.1 (4) | O13—Cl1—O11i | 69.8 (5) |
C7—C8—C10 | 129.4 (4) | O13i—Cl1—O11i | 113.2 (5) |
N2—C8—C10 | 122.5 (4) | O13—Cl1—O11 | 113.2 (5) |
C7—C9—H9A | 109.5 | O13i—Cl1—O11 | 69.8 (5) |
C7—C9—H9B | 109.5 | O11i—Cl1—O11 | 45.3 (6) |
H9A—C9—H9B | 109.5 | O13—Cl1—O14i | 67.2 (6) |
C7—C9—H9C | 109.5 | O13i—Cl1—O14i | 111.0 (6) |
H9A—C9—H9C | 109.5 | O11i—Cl1—O14i | 107.1 (5) |
H9B—C9—H9C | 109.5 | O11—Cl1—O14i | 136.7 (5) |
C8—C10—H10A | 109.5 | O13—Cl1—O14 | 111.0 (6) |
C8—C10—H10B | 109.5 | O13i—Cl1—O14 | 67.2 (6) |
H10A—C10—H10B | 109.5 | O11i—Cl1—O14 | 136.7 (5) |
C8—C10—H10C | 109.5 | O11—Cl1—O14 | 107.1 (5) |
H10A—C10—H10C | 109.5 | O14i—Cl1—O14 | 112.7 (7) |
H10B—C10—H10C | 109.5 | O13—Cl1—O12 | 113.4 (6) |
N4—C11—C12 | 122.3 (4) | O13i—Cl1—O12 | 65.4 (6) |
N4—C11—H11A | 118.8 | O11i—Cl1—O12 | 113.7 (6) |
C12—C11—H11A | 118.8 | O11—Cl1—O12 | 106.2 (6) |
C13—C12—C11 | 118.7 (4) | O14i—Cl1—O12 | 47.6 (5) |
C13—C12—H12A | 120.6 | O14—Cl1—O12 | 105.5 (5) |
C11—C12—H12A | 120.6 | O13—Cl1—O12i | 65.4 (6) |
C12—C13—C14 | 119.9 (4) | O13i—Cl1—O12i | 113.4 (6) |
C12—C13—H13A | 120.0 | O11i—Cl1—O12i | 106.2 (6) |
C14—C13—H13A | 120.0 | O11—Cl1—O12i | 113.7 (6) |
C13—C14—C15 | 118.4 (4) | O14i—Cl1—O12i | 105.5 (5) |
C13—C14—H14A | 120.8 | O14—Cl1—O12i | 47.6 (5) |
C15—C14—H14A | 120.8 | O12—Cl1—O12i | 136.7 (7) |
N4—C15—C14 | 122.4 (4) | O11i—O11—Cl1 | 67.4 (3) |
N4—C15—C16 | 112.9 (3) | O11i—O11—O13i | 119.0 (5) |
C14—C15—C16 | 124.6 (4) | Cl1—O11—O13i | 53.8 (4) |
N5—C16—N6 | 110.2 (3) | O14i—O12—Cl1 | 65.7 (6) |
N5—C16—C15 | 119.8 (3) | O14i—O12—O13i | 118.1 (9) |
N6—C16—C15 | 130.0 (4) | Cl1—O12—O13i | 54.7 (4) |
C18—C17—N6 | 106.2 (4) | Cl1—O13—O12i | 59.8 (5) |
C18—C17—C19 | 131.2 (4) | Cl1—O13—O14i | 58.5 (5) |
N6—C17—C19 | 122.6 (4) | O12i—O13—O14i | 96.5 (6) |
C17—C18—N5 | 108.9 (4) | Cl1—O13—O11i | 56.4 (4) |
C17—C18—C20 | 130.0 (4) | O12i—O13—O11i | 94.5 (6) |
N5—C18—C20 | 120.9 (4) | O14i—O13—O11i | 93.6 (7) |
C17—C19—H19A | 109.5 | O12i—O14—Cl1 | 66.7 (6) |
C17—C19—H19B | 109.5 | O12i—O14—O13i | 119.4 (8) |
H19A—C19—H19B | 109.5 | Cl1—O14—O13i | 54.3 (4) |
C17—C19—H19C | 109.5 | O21i—Cl2—O21 | 107.7 (3) |
H19A—C19—H19C | 109.5 | O21i—Cl2—O22 | 113.3 (3) |
H19B—C19—H19C | 109.5 | O21—Cl2—O22 | 107.5 (2) |
C18—C20—H20A | 109.5 | O21i—Cl2—O22i | 107.5 (2) |
C18—C20—H20B | 109.5 | O21—Cl2—O22i | 113.3 (3) |
H20A—C20—H20B | 109.5 | O22—Cl2—O22i | 107.7 (3) |
C18—C20—H20C | 109.5 | O34—Cl3—O33 | 110.5 (3) |
H20A—C20—H20C | 109.5 | O34—Cl3—O31 | 101.9 (3) |
H20B—C20—H20C | 109.5 | O33—Cl3—O31 | 110.6 (3) |
N8—C21—N7 | 108.8 (5) | O34—Cl3—O32 | 110.5 (2) |
N8—C21—H21A | 125.6 | O33—Cl3—O32 | 113.0 (3) |
N7—C21—H21A | 125.6 | O31—Cl3—O32 | 109.8 (3) |
Symmetry code: (i) y, x, −z. |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O12 | 0.86 | 2.16 | 3.001 (8) | 166 |
N3—H3A···O14i | 0.86 | 2.15 | 2.980 (10) | 162 |
N6—H6···O21i | 0.86 | 2.15 | 3.009 (5) | 175 |
Symmetry code: (i) y, x, −z. |
Experimental details
Crystal data | |
Chemical formula | [Cu(C3H4N2)(C10H11N3)2](ClO4)2 |
Mr | 676.96 |
Crystal system, space group | Tetragonal, P41212 |
Temperature (K) | 293 |
a, c (Å) | 14.6374 (5), 27.3945 (14) |
V (Å3) | 5869.4 (4) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.99 |
Crystal size (mm) | 0.32 × 0.26 × 0.24 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2000) |
Tmin, Tmax | 0.74, 0.79 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 32170, 5775, 5315 |
Rint | 0.048 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.048, 0.117, 1.08 |
No. of reflections | 5775 |
No. of parameters | 410 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.54, −0.64 |
Absolute structure | Flack (1983), 2433 Friedel pairs |
Absolute structure parameter | 0.013 (17) |
Computer programs: SMART (Bruker, 2000), CrystalClear (Rigaku, 2005), SAINT (Bruker, 2000), SHELXTL (Sheldrick, 2008).
Cu1—N5 | 1.977 (3) | Cu1—N1 | 2.129 (3) |
Cu1—N2 | 1.990 (3) | Cu1—N4 | 2.137 (3) |
Cu1—N7 | 2.007 (3) | ||
N5—Cu1—N2 | 170.20 (15) | N7—Cu1—N1 | 127.46 (14) |
N5—Cu1—N7 | 94.06 (14) | N5—Cu1—N4 | 79.52 (13) |
N2—Cu1—N7 | 95.74 (15) | N2—Cu1—N4 | 94.82 (13) |
N5—Cu1—N1 | 94.06 (13) | N7—Cu1—N4 | 123.73 (14) |
N2—Cu1—N1 | 80.10 (13) | N1—Cu1—N4 | 108.79 (13) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O12 | 0.86 | 2.16 | 3.001 (8) | 166.0 |
N3—H3A···O14i | 0.86 | 2.15 | 2.980 (10) | 162.1 |
N6—H6···O21i | 0.86 | 2.15 | 3.009 (5) | 174.5 |
Symmetry code: (i) y, x, −z. |
Imidazole is ubiquitous in biology and chemistry. It is therefore of interest to synthesize ligands containing imidazole and related heterocyclic system (Tan et al., 1997; Kapinos et al., 1998; Matthews et al., 1998). Imidazole and its derivatives are an important class of heterocycle with N-donor atoms, therefore the investigation of mixed-ligand complexes of a variety of transitional metal ions with imidazole and its derivatives has attracted considerable interest in recent years. The copper-imidazole systems have demonstrated capacities for construction of inorganic-organic hybrid supramolecular isomers (Huang et al., 2004; Huang et al., 2005), and also have profound effects on functions in biological systems (Holm et al., 1996). We report here the crystal structure of the title compound, a mixed-ligand CuII complex.
The crystal structure of the title compound contains distorted CuII complexes in which individual Cu centres exist in a CuN2N'2N'' donor set that defines a distorted trigonal bipyramid geometry. The two N atoms of pyridyl rings and the N atom of imidazole coordinate in a plane around the Cu atom. The N atoms of the two imidazole rings distribute in the axial positions; the Cu1—N2 distance is 1.990 (3) Å. The imidazole ligand is not a ordered system, and the imidazole ring is disordered over two orientations. Two of the perchlorate ion sites (containing Cl1 and Cl2) are located on a twofold rotation axis, and one of these (containing Cl1) displays disorder.
The N3 atom of 4,5-dimethyl-2-(2-pyridyl)imidazole form two hydrogen bonds with the O atom of perchlorate. The N6 atom and N8 atom also each form a hydrogen bond with the O atom of perchlorate; details are presented in Table 2. A two-dimensional infinite network of hydrogen-bonded molecules is present in the structure, running parallel to the ab-plane.