metal-organic compounds
2,2′-Diamino-5,5′-dimethyl-4,4′-bi-1,3-thiazolium tetrachloridozincate(II)
aEngineering Science, University of Tehran, Tehran, 11365-4563, Iran, and bDepartment of Chemistry, Tarbiat Modares University, Tehran, 14115-175, Iran
*Correspondence e-mail: hoseinian@ut.ac.ir, mahjoubaa@modares.ac.ir
In the dianion of the title compound, (C8H12N4S2)[ZnCl4], the ZnII ion is in a slightly distorted tetrahedral environment. In the cation, the mean planes of the thiazole rings form a dihedral angle of 67.81 (6) Å. In the anions and cations are linked into a three-dimensional network via intermolecular N—H⋯Cl hydrogen bonds.
Related literature
For the potential applications of metal-organic coordination compounds as antitumor drugs, polymers and luminescent materials, see: Hosseinian & Mahjoub (2006). For bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
|
Refinement
|
|
Data collection: SMART (Bruker, 1998); cell SAINT-Plus (Bruker, 1998); data reduction: SAINT-Plus; 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.
Supporting information
https://doi.org/10.1107/S1600536809042007/lh2898sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809042007/lh2898Isup2.hkl
To a methanol solution of ZnCl2 (1 mmol, 0. 136 g) was added, 2,2'-Diamino-5,5'-Dimethyl-4,4'-bithiazole (dadmbtz) (1 mmol, 0. 226 g). The mixture was refluxed for 2 h. The solution was cooled and filtrate was slow evaporated at room temperature. After 12 days, yellow block shaped crystals of the title compound were obtained.
The hydrogen atoms boned to N atoms were located in difference Fourier maps and refined in 'as found' positions in a riding-model approximation with Uiso(H) = 1.2Ueq(N). H atoms boned to C atoms were placed in calculated positions and refined in a riding-model approximation with Uiso(H) = 1.2Ueq(C) or 1.5Ueq(C) for methyl H atoms.
In coordination chemistry there are many studies on the interaction of ZnII ions with biomolecules (Hosseinian & Mahjoub, 2006: and references cited therein). Coordination between an organic ligand and ZnII ions improves or modifies the properties of biological molecules. In the human body the second abundant trace metal is zinc and it can be considered as a non toxic metal. The presence of zinc is vital to 300 enzyme structures, regulations and catalytic actions. As part of our research in the field of ZnII complexes of organic molecules the
of the title complexes is presented herein.The
of the title compound is shown in Fig. 1. The bond lengths have normal values (Allen et al., 1987). In the anions and cations are linked into a three-dimensional network via intermolecular N-H···Cl hydrogen bonds. In addition, there are fairly close intermolecular S···Cl contacts ca. 3.24Å.For the potential applications of metal-organic coordination compounds as antitumor drugs, polymers and luminescent materials, see: Hosseinian & Mahjoub (2006). For bond-length data, see: Allen et al. (1987).
Data collection: SMART (Bruker, 1998); cell
SAINT-Plus (Bruker, 1998); data reduction: SAINT-Plus (Bruker, 1998); 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).Fig. 1. The molecular structure of (I). Displacement ellipsoids are drawn at the 30% probability level and H atoms are shown as small spheres of arbitrary radii. | |
Fig. 2. Part of the crystal structure with dashed lines indicating hydrogen bonds. Only H atoms involved in hydrogen bonds are shown. |
(C8H12N4S2)[ZnCl4] | Z = 2 |
Mr = 435.51 | F(000) = 436 |
Triclinic, P1 | Dx = 1.814 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.9149 (6) Å | Cell parameters from 5086 reflections |
b = 9.6487 (7) Å | θ = 2.5–28.0° |
c = 11.7361 (8) Å | µ = 2.46 mm−1 |
α = 65.754 (5)° | T = 120 K |
β = 89.126 (5)° | Prism, yellow |
γ = 62.496 (5)° | 0.30 × 0.30 × 0.25 mm |
V = 797.22 (12) Å3 |
Bruker SMART 1000 CCD area-detector diffractometer | 3368 independent reflections |
Radiation source: normal-focus sealed tube | 3152 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.022 |
φ and ω scans | θmax = 27.0°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −11→11 |
Tmin = 0.484, Tmax = 0.535 | k = −12→12 |
6168 measured reflections | l = −15→15 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: mixed |
R[F2 > 2σ(F2)] = 0.029 | H-atom parameters constrained |
wR(F2) = 0.077 | w = 1/[σ2(Fo2) + (0.040P)2 + 1.P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max < 0.001 |
3368 reflections | Δρmax = 0.66 e Å−3 |
173 parameters | Δρmin = −0.82 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: 0.0179 (16) |
(C8H12N4S2)[ZnCl4] | γ = 62.496 (5)° |
Mr = 435.51 | V = 797.22 (12) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.9149 (6) Å | Mo Kα radiation |
b = 9.6487 (7) Å | µ = 2.46 mm−1 |
c = 11.7361 (8) Å | T = 120 K |
α = 65.754 (5)° | 0.30 × 0.30 × 0.25 mm |
β = 89.126 (5)° |
Bruker SMART 1000 CCD area-detector diffractometer | 3368 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3152 reflections with I > 2σ(I) |
Tmin = 0.484, Tmax = 0.535 | Rint = 0.022 |
6168 measured reflections |
R[F2 > 2σ(F2)] = 0.029 | 0 restraints |
wR(F2) = 0.077 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.66 e Å−3 |
3368 reflections | Δρmin = −0.82 e Å−3 |
173 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 | ||
Zn1 | 0.77593 (3) | 0.86751 (3) | 0.75845 (2) | 0.00894 (10) | |
Cl1 | 0.97516 (7) | 0.91131 (8) | 0.83034 (6) | 0.01767 (14) | |
Cl2 | 0.74022 (9) | 0.66200 (8) | 0.92201 (5) | 0.01983 (15) | |
Cl3 | 0.86565 (9) | 0.76054 (8) | 0.61574 (5) | 0.02216 (15) | |
Cl4 | 0.51769 (7) | 1.12209 (8) | 0.66076 (6) | 0.02434 (16) | |
S1 | −0.09151 (6) | 0.72895 (7) | 0.35203 (5) | 0.00929 (13) | |
S2 | 0.63717 (7) | 0.43870 (7) | 0.16847 (5) | 0.01112 (13) | |
N1 | 0.0383 (2) | 0.6517 (3) | 0.17917 (18) | 0.0122 (4) | |
H1A | 0.0506 | 0.6334 | 0.1118 | 0.015* | |
N2 | 0.4708 (3) | 0.3426 (3) | 0.33075 (19) | 0.0131 (4) | |
H2A | 0.4395 | 0.2785 | 0.3941 | 0.016* | |
N3 | −0.2658 (3) | 0.7787 (3) | 0.1413 (2) | 0.0169 (4) | |
H3A | −0.3569 | 0.8179 | 0.1731 | 0.020* | |
H3B | −0.2635 | 0.7475 | 0.0846 | 0.020* | |
N4 | 0.7579 (3) | 0.1184 (3) | 0.3653 (2) | 0.0194 (4) | |
H4A | 0.8469 | 0.0961 | 0.3298 | 0.023* | |
H4B | 0.7476 | 0.0411 | 0.4354 | 0.023* | |
C1 | −0.1143 (3) | 0.7216 (3) | 0.2097 (2) | 0.0111 (4) | |
C2 | 0.1792 (3) | 0.6012 (3) | 0.2685 (2) | 0.0106 (4) | |
C3 | 0.1324 (3) | 0.6365 (3) | 0.3667 (2) | 0.0101 (4) | |
C4 | 0.6262 (3) | 0.2791 (3) | 0.3020 (2) | 0.0118 (4) | |
C5 | 0.3552 (3) | 0.5195 (3) | 0.2475 (2) | 0.0111 (4) | |
C6 | 0.4236 (3) | 0.5932 (3) | 0.1553 (2) | 0.0099 (4) | |
C7 | 0.2430 (3) | 0.6131 (3) | 0.4750 (2) | 0.0159 (5) | |
H7A | 0.3644 | 0.5591 | 0.4682 | 0.024* | |
H7B | 0.2304 | 0.5370 | 0.5564 | 0.024* | |
H7C | 0.2066 | 0.7276 | 0.4715 | 0.024* | |
C8 | 0.3418 (3) | 0.7794 (3) | 0.0535 (2) | 0.0145 (5) | |
H8A | 0.2226 | 0.8453 | 0.0610 | 0.022* | |
H8B | 0.3411 | 0.7821 | −0.0309 | 0.022* | |
H8C | 0.4081 | 0.8325 | 0.0638 | 0.022* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.01114 (14) | 0.00947 (15) | 0.00651 (15) | −0.00633 (11) | 0.00174 (10) | −0.00251 (11) |
Cl1 | 0.0133 (3) | 0.0225 (3) | 0.0240 (3) | −0.0108 (2) | 0.0033 (2) | −0.0142 (3) |
Cl2 | 0.0385 (3) | 0.0201 (3) | 0.0117 (3) | −0.0224 (3) | 0.0131 (2) | −0.0079 (2) |
Cl3 | 0.0459 (4) | 0.0147 (3) | 0.0096 (3) | −0.0169 (3) | 0.0118 (3) | −0.0070 (2) |
Cl4 | 0.0107 (3) | 0.0210 (3) | 0.0218 (3) | −0.0008 (2) | 0.0008 (2) | −0.0011 (2) |
S1 | 0.0094 (2) | 0.0116 (3) | 0.0101 (3) | −0.0057 (2) | 0.00321 (19) | −0.0072 (2) |
S2 | 0.0108 (2) | 0.0074 (3) | 0.0111 (3) | −0.0043 (2) | 0.00468 (19) | −0.0010 (2) |
N1 | 0.0165 (9) | 0.0154 (10) | 0.0116 (9) | −0.0103 (8) | 0.0072 (7) | −0.0096 (8) |
N2 | 0.0187 (9) | 0.0095 (9) | 0.0126 (9) | −0.0087 (8) | 0.0098 (8) | −0.0047 (8) |
N3 | 0.0162 (9) | 0.0258 (11) | 0.0145 (10) | −0.0111 (8) | 0.0032 (8) | −0.0134 (9) |
N4 | 0.0217 (10) | 0.0070 (9) | 0.0184 (10) | −0.0043 (8) | 0.0096 (8) | −0.0001 (8) |
C1 | 0.0161 (10) | 0.0096 (10) | 0.0106 (10) | −0.0081 (9) | 0.0045 (8) | −0.0052 (8) |
C2 | 0.0124 (10) | 0.0098 (10) | 0.0135 (11) | −0.0081 (8) | 0.0058 (8) | −0.0059 (9) |
C3 | 0.0107 (9) | 0.0075 (10) | 0.0143 (11) | −0.0058 (8) | 0.0029 (8) | −0.0054 (8) |
C4 | 0.0168 (10) | 0.0091 (10) | 0.0110 (10) | −0.0076 (9) | 0.0059 (8) | −0.0047 (9) |
C5 | 0.0128 (10) | 0.0099 (10) | 0.0150 (11) | −0.0072 (8) | 0.0056 (8) | −0.0077 (9) |
C6 | 0.0101 (9) | 0.0085 (10) | 0.0116 (10) | −0.0044 (8) | 0.0018 (8) | −0.0053 (9) |
C7 | 0.0121 (10) | 0.0199 (12) | 0.0187 (12) | −0.0077 (9) | 0.0019 (9) | −0.0116 (10) |
C8 | 0.0125 (10) | 0.0106 (11) | 0.0130 (11) | −0.0035 (9) | 0.0001 (9) | −0.0016 (9) |
Zn1—Cl1 | 2.2531 (6) | N3—H3B | 0.8322 |
Zn1—Cl3 | 2.2642 (6) | N4—C4 | 1.317 (3) |
Zn1—Cl2 | 2.2707 (6) | N4—H4A | 0.8693 |
Zn1—Cl4 | 2.2788 (6) | N4—H4B | 0.8932 |
S1—C1 | 1.720 (2) | C2—C3 | 1.340 (3) |
S1—C3 | 1.746 (2) | C2—C5 | 1.466 (3) |
S2—C4 | 1.729 (2) | C3—C7 | 1.495 (3) |
S2—C6 | 1.752 (2) | C5—C6 | 1.340 (3) |
N1—C1 | 1.330 (3) | C6—C8 | 1.497 (3) |
N1—C2 | 1.403 (3) | C7—H7A | 0.9800 |
N1—H1A | 0.8730 | C7—H7B | 0.9800 |
N2—C4 | 1.334 (3) | C7—H7C | 0.9800 |
N2—C5 | 1.402 (3) | C8—H8A | 0.9800 |
N2—H2A | 0.8877 | C8—H8B | 0.9800 |
N3—C1 | 1.324 (3) | C8—H8C | 0.9800 |
N3—H3A | 0.8747 | ||
Cl1—Zn1—Cl3 | 110.69 (3) | N1—C2—C5 | 119.60 (19) |
Cl1—Zn1—Cl2 | 110.34 (2) | C2—C3—C7 | 128.8 (2) |
Cl3—Zn1—Cl2 | 106.06 (2) | C2—C3—S1 | 110.42 (16) |
Cl1—Zn1—Cl4 | 111.25 (3) | C7—C3—S1 | 120.71 (16) |
Cl3—Zn1—Cl4 | 108.19 (3) | N4—C4—N2 | 126.2 (2) |
Cl2—Zn1—Cl4 | 110.16 (3) | N4—C4—S2 | 122.76 (17) |
C1—S1—C3 | 91.07 (10) | N2—C4—S2 | 110.99 (17) |
C4—S2—C6 | 91.00 (11) | C6—C5—N2 | 113.51 (19) |
C1—N1—C2 | 114.04 (18) | C6—C5—C2 | 127.9 (2) |
C1—N1—H1A | 123.1 | N2—C5—C2 | 118.63 (19) |
C2—N1—H1A | 122.8 | C5—C6—C8 | 128.4 (2) |
C4—N2—C5 | 114.14 (18) | C5—C6—S2 | 110.35 (17) |
C4—N2—H2A | 123.8 | C8—C6—S2 | 121.27 (16) |
C5—N2—H2A | 121.9 | C3—C7—H7A | 109.5 |
C1—N3—H3A | 117.0 | C3—C7—H7B | 109.5 |
C1—N3—H3B | 116.7 | H7A—C7—H7B | 109.5 |
H3A—N3—H3B | 123.6 | C3—C7—H7C | 109.5 |
C4—N4—H4A | 114.3 | H7A—C7—H7C | 109.5 |
C4—N4—H4B | 119.7 | H7B—C7—H7C | 109.5 |
H4A—N4—H4B | 125.8 | C6—C8—H8A | 109.5 |
N3—C1—N1 | 125.5 (2) | C6—C8—H8B | 109.5 |
N3—C1—S1 | 123.29 (17) | H8A—C8—H8B | 109.5 |
N1—C1—S1 | 111.22 (16) | C6—C8—H8C | 109.5 |
C3—C2—N1 | 113.22 (18) | H8A—C8—H8C | 109.5 |
C3—C2—C5 | 127.2 (2) | H8B—C8—H8C | 109.5 |
C2—N1—C1—N3 | −179.8 (2) | C6—S2—C4—N4 | −178.7 (2) |
C2—N1—C1—S1 | 0.0 (2) | C6—S2—C4—N2 | 0.43 (18) |
C3—S1—C1—N3 | −179.3 (2) | C4—N2—C5—C6 | −1.1 (3) |
C3—S1—C1—N1 | 0.85 (17) | C4—N2—C5—C2 | 178.5 (2) |
C1—N1—C2—C3 | −1.2 (3) | C3—C2—C5—C6 | −112.4 (3) |
C1—N1—C2—C5 | 179.0 (2) | N1—C2—C5—C6 | 67.4 (3) |
N1—C2—C3—C7 | −175.7 (2) | C3—C2—C5—N2 | 68.0 (3) |
C5—C2—C3—C7 | 4.1 (4) | N1—C2—C5—N2 | −112.2 (2) |
N1—C2—C3—S1 | 1.8 (2) | N2—C5—C6—C8 | −177.4 (2) |
C5—C2—C3—S1 | −178.40 (18) | C2—C5—C6—C8 | 3.0 (4) |
C1—S1—C3—C2 | −1.52 (18) | N2—C5—C6—S2 | 1.3 (2) |
C1—S1—C3—C7 | 176.21 (19) | C2—C5—C6—S2 | −178.20 (18) |
C5—N2—C4—N4 | 179.3 (2) | C4—S2—C6—C5 | −1.01 (17) |
C5—N2—C4—S2 | 0.2 (2) | C4—S2—C6—C8 | 177.88 (18) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···Cl2i | 0.87 | 2.78 | 3.440 (3) | 133 |
N2—H2A···Cl4ii | 0.89 | 2.79 | 3.487 (2) | 137 |
N3—H3A···Cl4iii | 0.87 | 2.50 | 3.322 (3) | 156 |
N3—H3B···Cl2iv | 0.83 | 2.36 | 3.196 (3) | 179 |
N4—H4A···Cl1v | 0.87 | 2.44 | 3.280 (3) | 162 |
N4—H4B···Cl3ii | 0.89 | 2.38 | 3.189 (2) | 151 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) x, y−1, z; (iii) −x, −y+2, −z+1; (iv) x−1, y, z−1; (v) −x+2, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | (C8H12N4S2)[ZnCl4] |
Mr | 435.51 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 120 |
a, b, c (Å) | 8.9149 (6), 9.6487 (7), 11.7361 (8) |
α, β, γ (°) | 65.754 (5), 89.126 (5), 62.496 (5) |
V (Å3) | 797.22 (12) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 2.46 |
Crystal size (mm) | 0.30 × 0.30 × 0.25 |
Data collection | |
Diffractometer | Bruker SMART 1000 CCD area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.484, 0.535 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6168, 3368, 3152 |
Rint | 0.022 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.029, 0.077, 1.05 |
No. of reflections | 3368 |
No. of parameters | 173 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.66, −0.82 |
Computer programs: SMART (Bruker, 1998), SAINT-Plus (Bruker, 1998), SHELXTL (Sheldrick, 2008).
Zn1—Cl1 | 2.2531 (6) | Zn1—Cl2 | 2.2707 (6) |
Zn1—Cl3 | 2.2642 (6) | Zn1—Cl4 | 2.2788 (6) |
Cl1—Zn1—Cl3 | 110.69 (3) | Cl1—Zn1—Cl4 | 111.25 (3) |
Cl1—Zn1—Cl2 | 110.34 (2) | Cl3—Zn1—Cl4 | 108.19 (3) |
Cl3—Zn1—Cl2 | 106.06 (2) | Cl2—Zn1—Cl4 | 110.16 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···Cl2i | 0.87 | 2.78 | 3.440 (3) | 133 |
N2—H2A···Cl4ii | 0.89 | 2.79 | 3.487 (2) | 137 |
N3—H3A···Cl4iii | 0.87 | 2.50 | 3.322 (3) | 156 |
N3—H3B···Cl2iv | 0.83 | 2.36 | 3.196 (3) | 179 |
N4—H4A···Cl1v | 0.87 | 2.44 | 3.280 (3) | 162 |
N4—H4B···Cl3ii | 0.89 | 2.38 | 3.189 (2) | 151 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) x, y−1, z; (iii) −x, −y+2, −z+1; (iv) x−1, y, z−1; (v) −x+2, −y+1, −z+1. |
Acknowledgements
Financial support of this work by Tarbiat Modares University and the University of Tehran is gratefully acknowledged.
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CSD CrossRef Web of Science Google Scholar
Bruker (1998). SAINT-Plus and SMART. Bruker AXS, Madison, Wisconsin, USA. Google Scholar
Hosseinian, A. & Mahjoub, A. R. (2006). Z. Anorg. Allg. Chem. 632, 2505–2509. Web of Science CSD CrossRef CAS Google Scholar
Sheldrick, G. M. (1996). 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
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
In coordination chemistry there are many studies on the interaction of ZnII ions with biomolecules (Hosseinian & Mahjoub, 2006: and references cited therein). Coordination between an organic ligand and ZnII ions improves or modifies the properties of biological molecules. In the human body the second abundant trace metal is zinc and it can be considered as a non toxic metal. The presence of zinc is vital to 300 enzyme structures, regulations and catalytic actions. As part of our research in the field of ZnII complexes of organic molecules the crystal structure of the title complexes is presented herein.
The asymmetric unit of the title compound is shown in Fig. 1. The bond lengths have normal values (Allen et al., 1987). In the crystal structure, anions and cations are linked into a three-dimensional network via intermolecular N-H···Cl hydrogen bonds. In addition, there are fairly close intermolecular S···Cl contacts ca. 3.24Å.