metal-organic compounds
Tetrakis(1-ethyl-1H-imidazole-κN3)bis(thiocyanato-κN)cadmium(II)
aSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
*Correspondence e-mail: lirongxun163@163.com
The structure of the title compound, [Cd(NCS)2(C5H8N2)4], consists of isolated molecules of [Cd(NCS)2(Eim)4] (Eim = 1-ethylimidazole), which contain a compressed octahedral CdN6 chromophore. The NCS− anions are trans and four N atoms from the 1-ethylimidazole ligands define the equatorial plane. The mean Cd—N(Eim) and Cd—N(NCS) distances are 2.334 (4) and 2.379 (5) Å, respectively. Weak C—H⋯N interactions contribute to the crystal packing stability.
Related literature
In the related cadmium compound [Cd(NCS)2(1-vinylimidazole)4], the CdII ions have a distorted octahedral environment, see: Liu et al. (2007).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and local programs.
Supporting information
10.1107/S1600536810004964/hg2644sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810004964/hg2644Isup2.hkl
The title compound was prepared by the reaction of 1-ethylimidazole (1.92 g, 20 mmol) with CdCl2.0.5H2O(1.14 g, 5 mmol) and potassium thiocyanate (0.98 g, 10 mmol) by means of hydrothermal synthesis in stainless-steel reactor with Teflon liner at 383 K for 24 h. Single crystals suitable for X-ray measurements were obtained by recrystallization from methanol at room temperature.
H atoms were positioned geometrically(C—H = 0.93-0.97 Å) and allowed to ride on their parent atoms with Uiso(H) = 1.2 times Ueq(C).
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); 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) and local programs.Fig. 1. The structure of the title compound, showing 50% probability displacement ellipsoids and the atom-numbering scheme. | |
Fig. 2. The packing of (I), viewed down the a axis. |
[Cd(NCS)2(C5H8N2)4] | Z = 2 |
Mr = 613.13 | F(000) = 628 |
Triclinic, P1 | Dx = 1.392 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 9.0580 (18) Å | Cell parameters from 3229 reflections |
b = 13.532 (3) Å | θ = 1.6–26.0° |
c = 13.571 (3) Å | µ = 0.92 mm−1 |
α = 69.45 (3)° | T = 293 K |
β = 70.88 (3)° | Block, colorless |
γ = 89.02 (3)° | 0.30 × 0.30 × 0.20 mm |
V = 1462.6 (7) Å3 |
Bruker SMART 1K CCD area-detector diffractometer | 5708 independent reflections |
Radiation source: fine-focus sealed tube | 4412 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.024 |
thin–slice ω scans | θmax = 26.0°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | h = 0→11 |
Tmin = 0.770, Tmax = 0.838 | k = −16→16 |
6087 measured reflections | l = −15→16 |
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)] = 0.049 | H-atom parameters constrained |
wR(F2) = 0.150 | w = 1/[σ2(Fo2) + (0.1P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.00 | (Δ/σ)max = 0.001 |
5708 reflections | Δρmax = 0.87 e Å−3 |
321 parameters | Δρmin = −0.85 e Å−3 |
0 restraints | Extinction correction: SHELXL, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.038 (3) |
[Cd(NCS)2(C5H8N2)4] | γ = 89.02 (3)° |
Mr = 613.13 | V = 1462.6 (7) Å3 |
Triclinic, P1 | Z = 2 |
a = 9.0580 (18) Å | Mo Kα radiation |
b = 13.532 (3) Å | µ = 0.92 mm−1 |
c = 13.571 (3) Å | T = 293 K |
α = 69.45 (3)° | 0.30 × 0.30 × 0.20 mm |
β = 70.88 (3)° |
Bruker SMART 1K CCD area-detector diffractometer | 5708 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | 4412 reflections with I > 2σ(I) |
Tmin = 0.770, Tmax = 0.838 | Rint = 0.024 |
6087 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | 0 restraints |
wR(F2) = 0.150 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.87 e Å−3 |
5708 reflections | Δρmin = −0.85 e Å−3 |
321 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 | ||
Cd1 | 0.69564 (4) | 0.74519 (2) | 0.74788 (3) | 0.05176 (18) | |
S1 | 0.8813 (2) | 0.38753 (12) | 0.83690 (15) | 0.0894 (5) | |
S2 | 0.5096 (2) | 1.10420 (12) | 0.64503 (16) | 0.0908 (5) | |
N7 | 0.9399 (5) | 0.8103 (3) | 0.7377 (3) | 0.0619 (10) | |
N3 | 0.4588 (5) | 0.6765 (3) | 0.7552 (3) | 0.0598 (10) | |
N5 | 0.8071 (5) | 0.7265 (3) | 0.5749 (3) | 0.0589 (9) | |
N8 | 1.1286 (5) | 0.8430 (3) | 0.7960 (3) | 0.0577 (9) | |
N4 | 0.2773 (5) | 0.6417 (4) | 0.6931 (4) | 0.0695 (11) | |
N1 | 0.7430 (6) | 0.5694 (4) | 0.8445 (4) | 0.0744 (12) | |
C1 | 0.7999 (5) | 0.4933 (4) | 0.8406 (4) | 0.0549 (10) | |
N9 | 0.5902 (5) | 0.7659 (3) | 0.9200 (3) | 0.0600 (9) | |
N2 | 0.6550 (6) | 0.9207 (4) | 0.6501 (4) | 0.0780 (12) | |
C2 | 0.5964 (6) | 0.9977 (4) | 0.6467 (4) | 0.0578 (11) | |
C13 | 0.9874 (6) | 0.7894 (4) | 0.8245 (4) | 0.0640 (12) | |
H13A | 0.9304 | 0.7433 | 0.8966 | 0.077* | |
N6 | 0.9110 (5) | 0.7726 (3) | 0.3931 (3) | 0.0664 (11) | |
C20 | 0.5788 (7) | 0.8579 (4) | 0.9399 (5) | 0.0712 (13) | |
H20A | 0.5914 | 0.9255 | 0.8858 | 0.085* | |
C15 | 1.0593 (6) | 0.8803 (4) | 0.6491 (4) | 0.0647 (12) | |
H15A | 1.0593 | 0.9107 | 0.5761 | 0.078* | |
C18 | 0.5643 (6) | 0.6902 (4) | 1.0195 (4) | 0.0661 (12) | |
H18A | 0.5654 | 0.6183 | 1.0313 | 0.079* | |
C8 | 0.8485 (7) | 0.8045 (4) | 0.4788 (4) | 0.0689 (13) | |
H8A | 0.8359 | 0.8749 | 0.4707 | 0.083* | |
C10 | 0.8447 (7) | 0.6377 (4) | 0.5496 (4) | 0.0682 (13) | |
H10A | 0.8278 | 0.5687 | 0.6017 | 0.082* | |
C5 | 0.3418 (7) | 0.6026 (4) | 0.8429 (5) | 0.0692 (13) | |
H5A | 0.3398 | 0.5730 | 0.9164 | 0.083* | |
C14 | 1.1764 (6) | 0.8981 (4) | 0.6839 (4) | 0.0668 (13) | |
H14A | 1.2716 | 0.9401 | 0.6396 | 0.080* | |
C9 | 0.9098 (7) | 0.6655 (4) | 0.4379 (4) | 0.0740 (15) | |
H9A | 0.9465 | 0.6205 | 0.3990 | 0.089* | |
C4 | 0.2306 (7) | 0.5801 (4) | 0.8049 (5) | 0.0761 (15) | |
H4A | 0.1404 | 0.5323 | 0.8465 | 0.091* | |
C3 | 0.4137 (6) | 0.6964 (4) | 0.6684 (4) | 0.0676 (13) | |
H3A | 0.4709 | 0.7437 | 0.5970 | 0.081* | |
N10 | 0.5365 (5) | 0.7290 (4) | 1.1004 (3) | 0.0689 (11) | |
C16 | 1.2126 (7) | 0.8384 (5) | 0.8732 (5) | 0.0717 (14) | |
H16A | 1.2021 | 0.7656 | 0.9242 | 0.086* | |
H16B | 1.3235 | 0.8603 | 0.8305 | 0.086* | |
C6 | 0.1968 (8) | 0.6455 (6) | 0.6151 (6) | 0.094 (2) | |
H6A | 0.0907 | 0.6104 | 0.6573 | 0.113* | |
H6B | 0.1893 | 0.7191 | 0.5738 | 0.113* | |
C19 | 0.5463 (7) | 0.8359 (5) | 1.0506 (5) | 0.0770 (15) | |
H19A | 0.5332 | 0.8849 | 1.0858 | 0.092* | |
C11 | 0.9731 (8) | 0.8412 (5) | 0.2743 (4) | 0.0855 (18) | |
H11A | 0.9749 | 0.7991 | 0.2291 | 0.103* | |
H11B | 0.9032 | 0.8953 | 0.2593 | 0.103* | |
C7 | 0.2747 (9) | 0.5958 (6) | 0.5366 (6) | 0.112 (2) | |
H7A | 0.2365 | 0.6183 | 0.4749 | 0.168* | |
H7B | 0.2535 | 0.5200 | 0.5733 | 0.168* | |
H7C | 0.3860 | 0.6159 | 0.5094 | 0.168* | |
C17 | 1.1544 (10) | 0.9058 (6) | 0.9382 (6) | 0.108 (2) | |
H17A | 1.1984 | 0.8898 | 0.9968 | 0.162* | |
H17B | 1.0418 | 0.8928 | 0.9706 | 0.162* | |
H17C | 1.1846 | 0.9790 | 0.8901 | 0.162* | |
C21 | 0.5084 (9) | 0.6655 (6) | 1.2194 (5) | 0.101 (2) | |
H21A | 0.4195 | 0.6886 | 1.2659 | 0.121* | |
H21B | 0.4825 | 0.5914 | 1.2336 | 0.121* | |
C22 | 0.6465 (10) | 0.6764 (7) | 1.2495 (7) | 0.124 (3) | |
H22A | 0.6231 | 0.6372 | 1.3280 | 0.186* | |
H22B | 0.6743 | 0.7500 | 1.2332 | 0.186* | |
H22C | 0.7327 | 0.6492 | 1.2071 | 0.186* | |
C12 | 1.1279 (9) | 0.8917 (6) | 0.2418 (6) | 0.128 (3) | |
H12A | 1.1616 | 0.9374 | 0.1643 | 0.192* | |
H12B | 1.1989 | 0.8387 | 0.2524 | 0.192* | |
H12C | 1.1272 | 0.9329 | 0.2868 | 0.192* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cd1 | 0.0538 (2) | 0.0523 (2) | 0.0494 (2) | 0.00817 (14) | −0.01671 (15) | −0.01999 (15) |
S1 | 0.0938 (11) | 0.0607 (8) | 0.0959 (11) | 0.0180 (8) | −0.0099 (9) | −0.0294 (8) |
S2 | 0.1011 (12) | 0.0581 (8) | 0.1125 (12) | 0.0222 (8) | −0.0405 (10) | −0.0274 (8) |
N7 | 0.056 (2) | 0.067 (2) | 0.060 (2) | 0.0033 (19) | −0.0172 (19) | −0.022 (2) |
N3 | 0.060 (2) | 0.061 (2) | 0.060 (2) | 0.0050 (19) | −0.0202 (19) | −0.0252 (19) |
N5 | 0.065 (2) | 0.061 (2) | 0.051 (2) | 0.0095 (19) | −0.0187 (18) | −0.0218 (18) |
N8 | 0.055 (2) | 0.064 (2) | 0.056 (2) | 0.0100 (18) | −0.0183 (18) | −0.0246 (19) |
N4 | 0.059 (2) | 0.088 (3) | 0.074 (3) | 0.008 (2) | −0.025 (2) | −0.042 (2) |
N1 | 0.083 (3) | 0.067 (3) | 0.068 (3) | 0.023 (2) | −0.024 (2) | −0.021 (2) |
C1 | 0.054 (3) | 0.051 (3) | 0.046 (2) | −0.002 (2) | −0.0098 (19) | −0.0088 (19) |
N9 | 0.059 (2) | 0.065 (2) | 0.057 (2) | 0.0081 (18) | −0.0157 (18) | −0.0280 (19) |
N2 | 0.092 (3) | 0.064 (3) | 0.080 (3) | 0.023 (2) | −0.036 (3) | −0.024 (2) |
C2 | 0.065 (3) | 0.050 (3) | 0.051 (2) | −0.002 (2) | −0.021 (2) | −0.008 (2) |
C13 | 0.062 (3) | 0.069 (3) | 0.057 (3) | 0.003 (2) | −0.021 (2) | −0.016 (2) |
N6 | 0.081 (3) | 0.064 (3) | 0.051 (2) | 0.000 (2) | −0.019 (2) | −0.0190 (19) |
C20 | 0.081 (4) | 0.064 (3) | 0.070 (3) | 0.010 (3) | −0.020 (3) | −0.030 (3) |
C15 | 0.065 (3) | 0.064 (3) | 0.057 (3) | −0.001 (2) | −0.020 (2) | −0.013 (2) |
C18 | 0.070 (3) | 0.069 (3) | 0.060 (3) | 0.008 (2) | −0.022 (2) | −0.024 (3) |
C8 | 0.096 (4) | 0.054 (3) | 0.056 (3) | 0.010 (3) | −0.025 (3) | −0.021 (2) |
C10 | 0.085 (4) | 0.059 (3) | 0.060 (3) | 0.003 (3) | −0.023 (3) | −0.022 (2) |
C5 | 0.075 (3) | 0.061 (3) | 0.068 (3) | 0.005 (3) | −0.021 (3) | −0.021 (2) |
C14 | 0.062 (3) | 0.063 (3) | 0.069 (3) | −0.004 (2) | −0.022 (3) | −0.017 (2) |
C9 | 0.094 (4) | 0.074 (4) | 0.064 (3) | 0.017 (3) | −0.026 (3) | −0.038 (3) |
C4 | 0.069 (3) | 0.071 (3) | 0.080 (4) | −0.004 (3) | −0.018 (3) | −0.025 (3) |
C3 | 0.056 (3) | 0.083 (4) | 0.063 (3) | 0.004 (3) | −0.020 (2) | −0.028 (3) |
N10 | 0.068 (3) | 0.086 (3) | 0.054 (2) | 0.006 (2) | −0.019 (2) | −0.028 (2) |
C16 | 0.067 (3) | 0.079 (4) | 0.083 (4) | 0.014 (3) | −0.039 (3) | −0.034 (3) |
C6 | 0.078 (4) | 0.134 (6) | 0.104 (5) | 0.023 (4) | −0.046 (4) | −0.070 (5) |
C19 | 0.086 (4) | 0.082 (4) | 0.074 (4) | 0.015 (3) | −0.024 (3) | −0.044 (3) |
C11 | 0.101 (5) | 0.097 (4) | 0.048 (3) | 0.001 (4) | −0.019 (3) | −0.021 (3) |
C7 | 0.123 (6) | 0.141 (7) | 0.108 (5) | 0.023 (5) | −0.056 (5) | −0.072 (5) |
C17 | 0.141 (7) | 0.128 (6) | 0.101 (5) | 0.049 (5) | −0.075 (5) | −0.066 (5) |
C21 | 0.114 (6) | 0.134 (6) | 0.051 (3) | 0.016 (5) | −0.027 (3) | −0.030 (4) |
C22 | 0.134 (7) | 0.160 (8) | 0.119 (6) | 0.065 (6) | −0.075 (6) | −0.071 (6) |
C12 | 0.121 (6) | 0.144 (7) | 0.087 (5) | −0.055 (5) | −0.006 (4) | −0.028 (5) |
Cd1—N3 | 2.311 (4) | C10—C9 | 1.345 (7) |
Cd1—N9 | 2.331 (4) | C10—H10A | 0.9300 |
Cd1—N5 | 2.334 (4) | C5—C4 | 1.354 (8) |
Cd1—N7 | 2.339 (4) | C5—H5A | 0.9300 |
Cd1—N2 | 2.370 (5) | C14—H14A | 0.9300 |
Cd1—N1 | 2.389 (4) | C9—H9A | 0.9300 |
S1—C1 | 1.608 (5) | C4—H4A | 0.9300 |
S2—C2 | 1.627 (5) | C3—H3A | 0.9300 |
N7—C13 | 1.322 (6) | N10—C19 | 1.356 (7) |
N7—C15 | 1.377 (6) | N10—C21 | 1.474 (7) |
N3—C3 | 1.310 (6) | C16—C17 | 1.460 (8) |
N3—C5 | 1.383 (7) | C16—H16A | 0.9700 |
N5—C8 | 1.296 (6) | C16—H16B | 0.9700 |
N5—C10 | 1.371 (6) | C6—C7 | 1.442 (8) |
N8—C13 | 1.350 (6) | C6—H6A | 0.9700 |
N8—C14 | 1.357 (6) | C6—H6B | 0.9700 |
N8—C16 | 1.467 (6) | C19—H19A | 0.9300 |
N4—C3 | 1.331 (7) | C11—C12 | 1.429 (9) |
N4—C4 | 1.371 (7) | C11—H11A | 0.9700 |
N4—C6 | 1.457 (7) | C11—H11B | 0.9700 |
N1—C1 | 1.154 (6) | C7—H7A | 0.9600 |
N9—C18 | 1.326 (6) | C7—H7B | 0.9600 |
N9—C20 | 1.359 (6) | C7—H7C | 0.9600 |
N2—C2 | 1.154 (6) | C17—H17A | 0.9600 |
C13—H13A | 0.9300 | C17—H17B | 0.9600 |
N6—C8 | 1.332 (6) | C17—H17C | 0.9600 |
N6—C9 | 1.359 (6) | C21—C22 | 1.462 (10) |
N6—C11 | 1.467 (6) | C21—H21A | 0.9700 |
C20—C19 | 1.354 (7) | C21—H21B | 0.9700 |
C20—H20A | 0.9300 | C22—H22A | 0.9600 |
C15—C14 | 1.350 (7) | C22—H22B | 0.9600 |
C15—H15A | 0.9300 | C22—H22C | 0.9600 |
C18—N10 | 1.328 (6) | C12—H12A | 0.9600 |
C18—H18A | 0.9300 | C12—H12B | 0.9600 |
C8—H8A | 0.9300 | C12—H12C | 0.9600 |
N3—Cd1—N9 | 94.24 (14) | C10—C9—N6 | 106.3 (5) |
N3—Cd1—N5 | 87.15 (14) | C10—C9—H9A | 126.8 |
N9—Cd1—N5 | 178.61 (13) | N6—C9—H9A | 126.8 |
N3—Cd1—N7 | 177.92 (13) | C5—C4—N4 | 106.5 (5) |
N9—Cd1—N7 | 87.36 (14) | C5—C4—H4A | 126.8 |
N5—Cd1—N7 | 91.26 (14) | N4—C4—H4A | 126.8 |
N3—Cd1—N2 | 92.07 (17) | N3—C3—N4 | 112.9 (5) |
N9—Cd1—N2 | 91.78 (16) | N3—C3—H3A | 123.5 |
N5—Cd1—N2 | 88.03 (16) | N4—C3—H3A | 123.5 |
N7—Cd1—N2 | 89.21 (17) | C18—N10—C19 | 106.4 (4) |
N3—Cd1—N1 | 89.13 (16) | C18—N10—C21 | 125.2 (5) |
N9—Cd1—N1 | 88.71 (15) | C19—N10—C21 | 128.3 (5) |
N5—Cd1—N1 | 91.45 (15) | C17—C16—N8 | 112.9 (5) |
N7—Cd1—N1 | 89.58 (16) | C17—C16—H16A | 109.0 |
N2—Cd1—N1 | 178.67 (16) | N8—C16—H16A | 109.0 |
C13—N7—C15 | 104.6 (4) | C17—C16—H16B | 109.0 |
C13—N7—Cd1 | 124.5 (3) | N8—C16—H16B | 109.0 |
C15—N7—Cd1 | 130.9 (3) | H16A—C16—H16B | 107.8 |
C3—N3—C5 | 104.7 (4) | C7—C6—N4 | 113.2 (6) |
C3—N3—Cd1 | 124.5 (3) | C7—C6—H6A | 108.9 |
C5—N3—Cd1 | 130.6 (4) | N4—C6—H6A | 108.9 |
C8—N5—C10 | 104.9 (4) | C7—C6—H6B | 108.9 |
C8—N5—Cd1 | 124.6 (3) | N4—C6—H6B | 108.9 |
C10—N5—Cd1 | 130.5 (3) | H6A—C6—H6B | 107.7 |
C13—N8—C14 | 106.6 (4) | C20—C19—N10 | 107.0 (5) |
C13—N8—C16 | 125.4 (4) | C20—C19—H19A | 126.5 |
C14—N8—C16 | 128.0 (4) | N10—C19—H19A | 126.5 |
C3—N4—C4 | 106.5 (4) | C12—C11—N6 | 112.7 (6) |
C3—N4—C6 | 126.2 (5) | C12—C11—H11A | 109.0 |
C4—N4—C6 | 127.3 (5) | N6—C11—H11A | 109.0 |
C1—N1—Cd1 | 148.8 (4) | C12—C11—H11B | 109.0 |
N1—C1—S1 | 178.7 (5) | N6—C11—H11B | 109.0 |
C18—N9—C20 | 104.9 (4) | H11A—C11—H11B | 107.8 |
C18—N9—Cd1 | 125.6 (3) | C6—C7—H7A | 109.5 |
C20—N9—Cd1 | 127.8 (3) | C6—C7—H7B | 109.5 |
C2—N2—Cd1 | 152.1 (4) | H7A—C7—H7B | 109.5 |
N2—C2—S2 | 178.3 (5) | C6—C7—H7C | 109.5 |
N7—C13—N8 | 112.0 (4) | H7A—C7—H7C | 109.5 |
N7—C13—H13A | 124.0 | H7B—C7—H7C | 109.5 |
N8—C13—H13A | 124.0 | C16—C17—H17A | 109.5 |
C8—N6—C9 | 106.5 (4) | C16—C17—H17B | 109.5 |
C8—N6—C11 | 126.1 (5) | H17A—C17—H17B | 109.5 |
C9—N6—C11 | 127.4 (5) | C16—C17—H17C | 109.5 |
C19—C20—N9 | 109.4 (5) | H17A—C17—H17C | 109.5 |
C19—C20—H20A | 125.3 | H17B—C17—H17C | 109.5 |
N9—C20—H20A | 125.3 | C22—C21—N10 | 111.3 (7) |
C14—C15—N7 | 109.9 (5) | C22—C21—H21A | 109.4 |
C14—C15—H15A | 125.0 | N10—C21—H21A | 109.4 |
N7—C15—H15A | 125.0 | C22—C21—H21B | 109.4 |
N9—C18—N10 | 112.2 (5) | N10—C21—H21B | 109.4 |
N9—C18—H18A | 123.9 | H21A—C21—H21B | 108.0 |
N10—C18—H18A | 123.9 | C21—C22—H22A | 109.5 |
N5—C8—N6 | 112.6 (4) | C21—C22—H22B | 109.5 |
N5—C8—H8A | 123.7 | H22A—C22—H22B | 109.5 |
N6—C8—H8A | 123.7 | C21—C22—H22C | 109.5 |
C9—C10—N5 | 109.6 (5) | H22A—C22—H22C | 109.5 |
C9—C10—H10A | 125.2 | H22B—C22—H22C | 109.5 |
N5—C10—H10A | 125.2 | C11—C12—H12A | 109.5 |
C4—C5—N3 | 109.4 (5) | C11—C12—H12B | 109.5 |
C4—C5—H5A | 125.3 | H12A—C12—H12B | 109.5 |
N3—C5—H5A | 125.3 | C11—C12—H12C | 109.5 |
C15—C14—N8 | 106.9 (5) | H12A—C12—H12C | 109.5 |
C15—C14—H14A | 126.6 | H12B—C12—H12C | 109.5 |
N8—C14—H14A | 126.6 | ||
N3—Cd1—N7—C13 | −103 (4) | N5—Cd1—N2—C2 | 163.7 (10) |
N9—Cd1—N7—C13 | 36.8 (4) | N7—Cd1—N2—C2 | −105.1 (10) |
N5—Cd1—N7—C13 | −143.4 (4) | N1—Cd1—N2—C2 | −129 (6) |
N2—Cd1—N7—C13 | 128.6 (4) | Cd1—N2—C2—S2 | −23 (18) |
N1—Cd1—N7—C13 | −51.9 (4) | C15—N7—C13—N8 | 0.7 (6) |
N3—Cd1—N7—C15 | 81 (4) | Cd1—N7—C13—N8 | −175.8 (3) |
N9—Cd1—N7—C15 | −138.7 (4) | C14—N8—C13—N7 | −2.3 (6) |
N5—Cd1—N7—C15 | 41.1 (4) | C16—N8—C13—N7 | 179.1 (4) |
N2—Cd1—N7—C15 | −46.9 (4) | C18—N9—C20—C19 | 0.0 (6) |
N1—Cd1—N7—C15 | 132.6 (4) | Cd1—N9—C20—C19 | −165.4 (4) |
N9—Cd1—N3—C3 | 142.9 (4) | C13—N7—C15—C14 | 1.2 (6) |
N5—Cd1—N3—C3 | −36.9 (4) | Cd1—N7—C15—C14 | 177.4 (3) |
N7—Cd1—N3—C3 | −77 (4) | C20—N9—C18—N10 | 0.4 (6) |
N2—Cd1—N3—C3 | 51.0 (4) | Cd1—N9—C18—N10 | 166.2 (3) |
N1—Cd1—N3—C3 | −128.4 (4) | C10—N5—C8—N6 | −0.4 (6) |
N9—Cd1—N3—C5 | −42.8 (4) | Cd1—N5—C8—N6 | 179.1 (3) |
N5—Cd1—N3—C5 | 137.4 (4) | C9—N6—C8—N5 | −0.1 (7) |
N7—Cd1—N3—C5 | 97 (4) | C11—N6—C8—N5 | −178.3 (5) |
N2—Cd1—N3—C5 | −134.7 (4) | C8—N5—C10—C9 | 0.7 (6) |
N1—Cd1—N3—C5 | 45.9 (4) | Cd1—N5—C10—C9 | −178.8 (4) |
N3—Cd1—N5—C8 | 105.4 (4) | C3—N3—C5—C4 | 0.5 (6) |
N9—Cd1—N5—C8 | −69 (5) | Cd1—N3—C5—C4 | −174.7 (4) |
N7—Cd1—N5—C8 | −76.0 (4) | N7—C15—C14—N8 | −2.6 (6) |
N2—Cd1—N5—C8 | 13.2 (4) | C13—N8—C14—C15 | 3.0 (6) |
N1—Cd1—N5—C8 | −165.6 (4) | C16—N8—C14—C15 | −178.6 (5) |
N3—Cd1—N5—C10 | −75.3 (5) | N5—C10—C9—N6 | −0.7 (7) |
N9—Cd1—N5—C10 | 111 (5) | C8—N6—C9—C10 | 0.5 (6) |
N7—Cd1—N5—C10 | 103.4 (5) | C11—N6—C9—C10 | 178.7 (5) |
N2—Cd1—N5—C10 | −167.4 (5) | N3—C5—C4—N4 | −1.0 (6) |
N1—Cd1—N5—C10 | 13.8 (5) | C3—N4—C4—C5 | 1.0 (6) |
N3—Cd1—N1—C1 | 95.1 (8) | C6—N4—C4—C5 | 179.7 (5) |
N9—Cd1—N1—C1 | −170.6 (9) | C5—N3—C3—N4 | 0.2 (6) |
N5—Cd1—N1—C1 | 8.0 (9) | Cd1—N3—C3—N4 | 175.7 (3) |
N7—Cd1—N1—C1 | −83.3 (8) | C4—N4—C3—N3 | −0.8 (6) |
N2—Cd1—N1—C1 | −59 (6) | C6—N4—C3—N3 | −179.4 (5) |
Cd1—N1—C1—S1 | 122 (22) | N9—C18—N10—C19 | −0.6 (6) |
N3—Cd1—N9—C18 | 82.4 (4) | N9—C18—N10—C21 | −178.0 (5) |
N5—Cd1—N9—C18 | −103 (5) | C13—N8—C16—C17 | −80.3 (7) |
N7—Cd1—N9—C18 | −96.3 (4) | C14—N8—C16—C17 | 101.5 (7) |
N2—Cd1—N9—C18 | 174.6 (4) | C3—N4—C6—C7 | 70.8 (9) |
N1—Cd1—N9—C18 | −6.7 (4) | C4—N4—C6—C7 | −107.5 (7) |
N3—Cd1—N9—C20 | −115.1 (4) | N9—C20—C19—N10 | −0.3 (7) |
N5—Cd1—N9—C20 | 59 (5) | C18—N10—C19—C20 | 0.5 (6) |
N7—Cd1—N9—C20 | 66.2 (4) | C21—N10—C19—C20 | 177.9 (6) |
N2—Cd1—N9—C20 | −22.9 (4) | C8—N6—C11—C12 | 79.8 (9) |
N1—Cd1—N9—C20 | 155.9 (4) | C9—N6—C11—C12 | −98.2 (8) |
N3—Cd1—N2—C2 | 76.6 (10) | C18—N10—C21—C22 | 104.3 (7) |
N9—Cd1—N2—C2 | −17.7 (10) | C19—N10—C21—C22 | −72.6 (9) |
D—H···A | D—H | H···A | D···A | D—H···A |
C18—H18A···N1 | 0.93 | 2.81 | 3.324 (8) | 116 |
C8—H8A···N2 | 0.93 | 2.72 | 3.279 (8) | 119 |
C3—H3A···N5 | 0.93 | 2.97 | 3.346 (7) | 106 |
C5—H5A···N1i | 0.93 | 2.98 | 3.873 (8) | 162 |
Symmetry code: (i) −x+1, −y+1, −z+2. |
Experimental details
Crystal data | |
Chemical formula | [Cd(NCS)2(C5H8N2)4] |
Mr | 613.13 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 9.0580 (18), 13.532 (3), 13.571 (3) |
α, β, γ (°) | 69.45 (3), 70.88 (3), 89.02 (3) |
V (Å3) | 1462.6 (7) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.92 |
Crystal size (mm) | 0.30 × 0.30 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART 1K CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2004) |
Tmin, Tmax | 0.770, 0.838 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6087, 5708, 4412 |
Rint | 0.024 |
(sin θ/λ)max (Å−1) | 0.616 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.150, 1.00 |
No. of reflections | 5708 |
No. of parameters | 321 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.87, −0.85 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXTL (Sheldrick, 2008) and local programs.
D—H···A | D—H | H···A | D···A | D—H···A |
C18—H18A···N1 | 0.93 | 2.814 | 3.324 (8) | 116 |
C8—H8A···N2 | 0.93 | 2.722 | 3.279 (8) | 119 |
C3—H3A···N5 | 0.93 | 2.973 | 3.346 (7) | 106 |
C5—H5A···N1i | 0.93 | 2.978 | 3.873 (8) | 162 |
Symmetry code: (i) −x+1, −y+1, −z+2. |
Acknowledgements
This work was supported by the NSF of China (No. 20871072) and the Doctoral Science Foundation of Shandong Province (No. 2007BS04023).
References
Bruker (2001). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Liu, G. Y., Chen, H. N., Liu, F. Q., Li, S. X., Li, R. X. & Huang, S. Y. (2007). Chin. J. Inorg. Chem. 23, 1085–1088. CAS Google Scholar
Sheldrick, G. M. (2004). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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The molecular structure of (I) is shown in Fig. 1. The Cd atom displays an octahedral coordination geometry, with six N atoms from two thiocyanate anions and four 1-ethylimidazole ligands. The equatorial plane of the complex is formed by four Cd—N(1-ethylimadazole) bonds with lengths ranging from 2.331 (4) to 2.339 (4) Å, and the axial positions are occupied by two N-bonded NCS groups [Cd—N(NCS) = 2.369 (5) and 2.389 (4) Å]. These values agree well with those observed in [Cd(NCS)2(1-vinylimidazole)4] (Liu et al., 2007). The values of the bond angles around cadmium are close to those expected for a regular octahedral geometry, the largest angular deviation being observed for the N3—Cd1—N9 angle [94.22 (12)°]. The thiocyanate ligands are almost linear. Weak C—H···N interactions contribute to the crystal packing stability.
In the corresponding cadmium compound [Cd(NCS)2(1-vinylimidazole)4] (Liu, et al., 2007), the CdII ions have a distorted octahedral environment.