metal-organic compounds
Poly[μ-1,3-thiazolidine-2-thione-κ2S2:S2-μ-thiocyanato-κ2S:N-copper(I)]
aDepartment of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai 90112, Thailand, and bthe School of Chemistry, University of Bristol, Cantock's Close, Bristol BS 1TS, England
*Correspondence e-mail: chaveng.p@psu.ac.th
The title compound, [Cu(SCN)(C3H5NS2)]n, was prepared from the direct reaction between copper(I) thiocyanate and 1,3-thiazolidine-2-thione. The structure is an infinite two-dimensional polymer, parallel to the ac plane, with tetrahedrally distorted Cu atoms which are coordinated by the S and N atoms of the thiocyanate ions, and by the thione S atom of 1,3-thiazolidine-2-thione molecules.
Comment
Heterocyclic thione compounds have received much attention due to their wide range of applications (Rapper, 1985, 1994, 1996, 1997; Akrivos, 2001; Bell et al., 2004). Neutral thione molecules can coordinate to metal atoms in a variety of ways (Aslanidis et al., 2004). Likewise, the metal atoms in group IB are also interesting for use in synthesis with these ligands; the complexes have been applied in optical, electrical, magnetic and luminescent materials (Huang et al., 2004).
For this work, we used copper(I) thiocyanate as a starting material to interact directly with 1,3-thiazolidine-2-thione under mild reaction conditions. The structure of the title complex, (I), is depicted in Fig. 1. The title complex is a two-dimensional polymeric structure, the Cu centre having a distorted tetrahedral geometry and being coordinated by two 1,3-thiazolidine-2-thione molecules and two thiocyanate groups. Each 1,3-thiazolidine-2-thione molecule is bonded to Cu atoms via the thione S atom. The thiocyanate groups bridge two Cu centres. As a result, 12-membered rings are formed. The crystal packing shows a weak N—H⋯N hydrogen bond (Table 1).
Experimental
1,3-Thiazolidine-2-thione (0.125 g, 0.985 mmol) was dissolved in CH3CN (30 ml); CuSCN (0.120 g, 0.985 mmol) was then added as a powder to the solution. The mixture was heated to 343 K and refluxed until the grey solid had changed colour to yellow (around 7 h). The yellow solid was filtered off and the yellow solution was kept at room temperature and allowed to evaporate slowly. Colourless needle-like crystals of the title complex were obtained.
Crystal data
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Refinement
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H atoms bonded to C atoms were placed in geometrically idealized positions and refined using a riding model, with C—H = 0.97 Å and Uiso(H) = 1.2Ueq(C). The H atom bonded to nitrogen was located in a difference Fourier map. Its position was refined with a distance restraint [N—H = 0.89 (2) Å] and with Uiso(H) = 1.2Ueq(N).
Data collection: SMART (Bruker, 1997); cell SAINT (Bruker, 1997); data reduction: SAINT and SHELXTL (Bruker, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536807007441/bt2264sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807007441/bt2264Isup2.hkl
Data collection: SMART (Bruker, 1997); cell
SMART; data reduction: SAINT (Bruker, 1997) and SHELXTL (Bruker, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.[Cu(SCN)(C3H5NS2)] | F(000) = 480 |
Mr = 240.82 | Dx = 2.048 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71074 Å |
Hall symbol: -P 2ybc | Cell parameters from 1484 reflections |
a = 5.8370 (7) Å | θ = 3.2–24.0° |
b = 19.992 (3) Å | µ = 3.52 mm−1 |
c = 6.9779 (9) Å | T = 293 K |
β = 106.391 (2)° | Needle, colorless |
V = 781.17 (18) Å3 | 0.23 × 0.05 × 0.02 mm |
Z = 4 |
Bruker AXS D8 diffractometer | 1871 independent reflections |
Radiation source: sealed X-ray tube | 1573 reflections with I > 2/s(I) |
Graphite monochromator | Rint = 0.039 |
Detector resolution: 8.366 pixels mm-1 | θmax = 28.2°, θmin = 2.0° |
ω scans | h = −7→7 |
Absorption correction: multi-scan (SADABS; Bruker, 1997) | k = −25→26 |
Tmin = 0.671, Tmax = 0.940 | l = −9→9 |
6767 measured reflections |
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)] = 0.051 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.108 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.15 | w = 1/[σ2(Fo2) + (0.0427P)2 + 0.9712P] where P = (Fo2 + 2Fc2)/3 |
1871 reflections | (Δ/σ)max = 0.001 |
94 parameters | Δρmax = 0.73 e Å−3 |
1 restraint | Δρmin = −0.54 e Å−3 |
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 | ||
Cu1 | 0.17403 (10) | 0.30184 (3) | 1.19916 (9) | 0.0394 (2) | |
S1 | 0.04782 (19) | 0.29292 (5) | 0.81538 (16) | 0.0296 (2) | |
S2 | 0.1806 (2) | 0.43839 (5) | 0.82671 (18) | 0.0359 (3) | |
N1 | 0.4138 (6) | 0.34760 (17) | 0.7097 (5) | 0.0312 (8) | |
H1 | 0.453 (8) | 0.3078 (13) | 0.676 (7) | 0.037* | |
N2 | 0.5112 (7) | 0.3246 (2) | 1.2443 (6) | 0.0430 (9) | |
C1 | 0.2285 (7) | 0.35495 (19) | 0.7778 (6) | 0.0255 (8) | |
C2 | 0.5562 (8) | 0.4071 (2) | 0.7042 (8) | 0.0399 (11) | |
H2A | 0.6123 | 0.4068 | 0.5860 | 0.048* | |
H2B | 0.6935 | 0.4088 | 0.8213 | 0.048* | |
C3 | 0.3971 (8) | 0.4660 (2) | 0.7007 (8) | 0.0408 (11) | |
H3A | 0.3177 | 0.4792 | 0.5643 | 0.049* | |
H3B | 0.4883 | 0.5037 | 0.7701 | 0.049* | |
S3 | −0.06175 (18) | 0.38930 (5) | 1.25329 (17) | 0.0335 (3) | |
C4 | −0.3110 (7) | 0.3499 (2) | 1.2486 (6) | 0.0288 (9) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cu1 | 0.0300 (3) | 0.0270 (3) | 0.0662 (4) | 0.0021 (2) | 0.0215 (3) | 0.0067 (3) |
S1 | 0.0331 (5) | 0.0212 (5) | 0.0393 (6) | −0.0044 (4) | 0.0178 (4) | −0.0041 (4) |
S2 | 0.0378 (6) | 0.0227 (5) | 0.0548 (7) | −0.0044 (4) | 0.0252 (5) | −0.0055 (5) |
N1 | 0.0290 (17) | 0.0251 (17) | 0.044 (2) | 0.0006 (14) | 0.0175 (16) | 0.0001 (16) |
N2 | 0.0254 (18) | 0.055 (2) | 0.050 (2) | −0.0006 (18) | 0.0129 (17) | 0.001 (2) |
C1 | 0.0303 (19) | 0.0214 (19) | 0.026 (2) | −0.0002 (16) | 0.0104 (16) | 0.0003 (15) |
C2 | 0.030 (2) | 0.039 (3) | 0.056 (3) | −0.0020 (19) | 0.022 (2) | 0.005 (2) |
C3 | 0.040 (2) | 0.029 (2) | 0.059 (3) | −0.0071 (19) | 0.023 (2) | 0.006 (2) |
S3 | 0.0271 (5) | 0.0261 (5) | 0.0489 (7) | 0.0013 (4) | 0.0132 (5) | −0.0051 (5) |
C4 | 0.026 (2) | 0.032 (2) | 0.028 (2) | 0.0071 (17) | 0.0073 (16) | 0.0001 (17) |
Cu1—N2 | 1.957 (4) | N1—H1 | 0.877 (19) |
Cu1—S1i | 2.2641 (11) | N2—C4iii | 1.148 (5) |
Cu1—S3 | 2.3211 (12) | C2—C3 | 1.495 (6) |
Cu1—S1 | 2.5754 (13) | C2—H2A | 0.9700 |
S1—C1 | 1.696 (4) | C2—H2B | 0.9700 |
S1—Cu1ii | 2.2641 (11) | C3—H3A | 0.9700 |
S2—C1 | 1.741 (4) | C3—H3B | 0.9700 |
S2—C3 | 1.817 (4) | S3—C4 | 1.646 (4) |
N1—C1 | 1.307 (5) | C4—N2iv | 1.148 (5) |
N1—C2 | 1.458 (5) | ||
N2—Cu1—S1i | 123.44 (13) | S1—C1—S2 | 122.0 (2) |
N2—Cu1—S3 | 114.47 (13) | N1—C2—C3 | 106.7 (3) |
S1i—Cu1—S3 | 107.71 (4) | N1—C2—H2A | 110.4 |
N2—Cu1—S1 | 99.38 (12) | C3—C2—H2A | 110.4 |
S1i—Cu1—S1 | 106.74 (4) | N1—C2—H2B | 110.4 |
S3—Cu1—S1 | 102.28 (4) | C3—C2—H2B | 110.4 |
C1—S1—Cu1ii | 106.09 (14) | H2A—C2—H2B | 108.6 |
C1—S1—Cu1 | 95.86 (14) | C2—C3—S2 | 105.5 (3) |
Cu1ii—S1—Cu1 | 113.82 (5) | C2—C3—H3A | 110.6 |
C1—S2—C3 | 91.4 (2) | S2—C3—H3A | 110.6 |
C1—N1—C2 | 117.0 (3) | C2—C3—H3B | 110.6 |
C1—N1—H1 | 120 (3) | S2—C3—H3B | 110.6 |
C2—N1—H1 | 123 (3) | H3A—C3—H3B | 108.8 |
C4iii—N2—Cu1 | 165.4 (4) | C4—S3—Cu1 | 101.40 (15) |
N1—C1—S1 | 126.1 (3) | N2iv—C4—S3 | 177.6 (4) |
N1—C1—S2 | 112.0 (3) | ||
N2—Cu1—S1—C1 | −35.10 (19) | Cu1—S1—C1—N1 | 112.1 (4) |
S1i—Cu1—S1—C1 | −164.36 (14) | Cu1ii—S1—C1—S2 | 174.6 (2) |
S3—Cu1—S1—C1 | 82.65 (14) | Cu1—S1—C1—S2 | −68.5 (2) |
N2—Cu1—S1—Cu1ii | 75.38 (14) | C3—S2—C1—N1 | 10.7 (3) |
S1i—Cu1—S1—Cu1ii | −53.88 (8) | C3—S2—C1—S1 | −168.8 (3) |
S3—Cu1—S1—Cu1ii | −166.87 (4) | C1—N1—C2—C3 | −22.8 (5) |
S1i—Cu1—N2—C4iii | −178.7 (15) | N1—C2—C3—S2 | 27.9 (5) |
S3—Cu1—N2—C4iii | −44.2 (16) | C1—S2—C3—C2 | −22.4 (4) |
S1—Cu1—N2—C4iii | 64.0 (16) | N2—Cu1—S3—C4 | −168.86 (19) |
C2—N1—C1—S1 | −175.1 (3) | S1i—Cu1—S3—C4 | −27.52 (15) |
C2—N1—C1—S2 | 5.4 (5) | S1—Cu1—S3—C4 | 84.74 (15) |
Cu1ii—S1—C1—N1 | −4.8 (4) |
Symmetry codes: (i) x, −y+1/2, z+1/2; (ii) x, −y+1/2, z−1/2; (iii) x+1, y, z; (iv) x−1, y, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···N2ii | 0.88 (2) | 2.69 (3) | 3.486 (5) | 151 (4) |
Symmetry code: (ii) x, −y+1/2, z−1/2. |
Acknowledgements
We gratefully acknowledge financial support from the Royal Golden Jubilee PhD program (RGJ) and the Center for Innovation in Chemistry, Postgraduate Education and Research Programme in Chemistry (PERCH–CIC) and thank the Graduate School for their support. Finally, we also thank the Department of Chemistry, Prince of Songkla University and the School of Chemistry, University of Bristol (UK), for instrumental support.
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