metal-organic compounds
catena-Poly[[bis(2-methoxyaniline-κN)cadmium]-di-μ-thiocyanato-κ2N:S;κ2S:N]
aLaboratoire de Génie des Matériaux et Environnement, École Nationale d'Ingénieurs de Sfax, BP 1173, Sfax, Tunisia, and bCentre de Diffractométrie X, UMR 6226 CNRS Unitée Sciences, Chimiques de Rennes, Université de Rennes I, 263 Avenue du Général Leclerc, 35042 Rennes, France
*Correspondence e-mail: slah.kamoun@gmail.com
The structure of the title compound, [Cd(NCS)2(C7H9NO)2]n, consists of cadmium–thiocyanate layers parallel to the ab plane. Pairs of CdII ions are bridged by two end-to-end inversely bridging μ-NCS-N:S thiocyanate groups, forming a two-dimensional network with the remaining two trans positions of the octahedrally coordinated CdII ions occupied by the N atoms of two neutral 2-methoxyaniline ligands. The is stabilized by intralayer N—H⋯S hydrogen bonds.
Related literature
For related structures, see: Wöhlert et al. (2012, 2013); Bai et al. (2011); Yang et al. (2001). For HSCN synthesis, see: Bartlett et al. (1969). For the effects of substituents on the internal angles of the benzene ring, see: Domenicano & Murray-Rust (1979). For non-linear optical and luminescence properties of related compounds, see: Chen et al. (2000); Bai et al. (2011). For electric and dielectric properties of related compounds, see: Karoui et al. (2013).
Experimental
Crystal data
|
|
|
Data collection: APEX2 (Bruker, 2011); cell SAINT (Bruker, 2011); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Berndt, 2001) and Mercury (Macrae et al., 2008); software used to prepare material for publication: WinGX (Farrugia, 2012) and publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536813010738/rz5058sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536813010738/rz5058Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536813010738/rz5058Isup3.cdx
To 25 ml of an aqueous solution of thiocyanic acid (0.8 M) prepared using the published procedure (Bartlett et al., 1969) an appropriate amount of cadmium carbonate (1.664 g, 10 mmol) was added and refluxed for 3 h. After cooling, 25 ml of methanol and 2.3 ml of a solution of 2-methoxyaniline (8.64 M) was added. The resulting solution was heated under reflux for 1 h and left to stand at ambient temperature. Well shaped colourless crystals were obtained after 2 h on slow evaporation of the solvent. They were washed with diethyl ether and dried over P2O5.
All H atoms were positioned geometrically and allowed to ride on their parent atoms, with C—H = 0.95-0.98 Å, N—H = 0.92 Å, and with Uiso(H) = 1.2Ueq(C, N).
The crystal engineering of inorganic-organic hybrid coordination polymers is currently one of the most active fields in coordination chemistry, supramolecular and materials chemistry. These compounds attract significant attention for their architectures and topologies (Yang et al., 2001). Hybrid inorganic-organic thiocyanate materials exhibit interesting physical properties such electrical conductivity and dielectric relaxation process (Karoui et al., 2013) and may have potential applications in non-linear optics and luminescence (Chen et al., 2000; Bai et al., 2011). Herein we report the structure of a new polymeric hybrid title compound
As shown in Fig. 1, each cadmium atom, which sits on general position, is coordinated by two trans N-bonded and two trans S-bonded thiocyanato anions. Two trans-coordinated 2-methoxy aniline ligands complete the octahedral coordination geometry around cadmium. The π-π interactions between phenyl rings may be neglected (>4 Å); in fact the shortest distances between the centroids of the rings are: Cg1 ··· Cg1i = 5.6130 (14) Å; Cg1 ··· Cg2ii = 5.5949 (14) Å (Cg1 and Cg2 are the centroids of the C12–C17 and C22–C27 rings, respectively; symmetry codes: (i) -0.5+x, +y, 1.5-z; 2.-x, -y, 1.-z). The major contributions to the cohesion and the stability of the polymeric structure is the presence of intralayer N—H···S hydrogen bonds which include two relatively long contacts, with H···S and N..S distances ranging from 2.50 to 2.66 Å and 3.4182 (17) Å to 3.5637 (18) Å, respectively (Table 2).
of the title compound consists of both simply and doubly µ-1,3-SCN–bridged two dimensional networks parallel to the ab plane with terminal neutral 2-methoxyaniline ligands (Fig. 2). In the CdN4S2 core, the Cd—N and Cd—S bonds span the range 2.2724 (19)–2.3718 (17) Å and 2.7306 (6)–2.7449 (6) Å, respectively (Table 1). These values are in good agreement with those observed in other similar complexes (Wöhlert et al., 2012, 2013; Yang et al., 2001). The bond angles involving the cadmium(II) cation range from 84.29 (6) to 95.50 (7)° and from 174.91 (2) to 175.76 (6)°. The double-bridging role of S1/C1/N1 anions gives rise to eight-membered Cd2(SCN)2 rings in a chair conformation because of the almost linear SCN groups (S1–C1–N1 angle = 178.76 (21)°). The distance between adjacent Cd atoms in the Cd2(SCN)2 rings is 5.9127 (4) Å. Again, these rings built up a 2-D sheet through their corner-sharing action at the two cadmium atoms via the linear S2/C2/N2 anions (S1–C1–N1 angle = 177.96 (21)°) and give rise to thirty-membered [Cd6(µ-SCN-N,S)8] macrocycles as subunits, as shown in Fig. 2. The bond angles in the phenyl groups deviate significantly from the idealized value of 120° due to the effect of the substituent. In fact, it was established that the angular deformations of phenyl groups can be described as a sum of the effects of the different substituents (Domenicano & Murray-Rust, 1979). The phenyl rings of both independent 2-methoxyaniline ligands are planar with the greatest deviation from the six-atoms least-square plane of 0.0029 Å and 0.0073 Å. They are well ordered with C–C–C angles in agreement with the expected sp2 hybridation. TheFor related structures, see: Wöhlert et al. (2012, 2013); Bai et al. (2011); Yang et al. (2001). For HSCN synthesis, see: Bartlett et al. (1969). For the effects of substituents on the internal angles of the benzene ring, see: Domenicano & Murray-Rust (1979). For non-linear optical and luminescence properties of related compounds, see: Chen et al. (2000); Bai et al. (2011). For electric and dielectric properties of related compounds, see: Karoui et al. (2013).
Data collection: APEX2 (Bruker, 2011); cell
SAINT (Bruker, 2011); data reduction: SAINT (Bruker, 2011); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Berndt, 2001) and Mercury (Macrae et al., 2008); software used to prepare material for publication: WinGX (Farrugia, 2012) and publCIF (Westrip, 2010).[Cd(NCS)2(C7H9NO)2] | F(000) = 1904 |
Mr = 474.89 | Dx = 1.660 Mg m−3 Dm = 1.593 Mg m−3 Dm measured by flotation |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 5155 reflections |
a = 6.6860 (2) Å | θ = 3.1–27.4° |
b = 23.3658 (7) Å | µ = 1.39 mm−1 |
c = 24.3281 (8) Å | T = 150 K |
V = 3800.6 (2) Å3 | Prism, colourless |
Z = 8 | 0.33 × 0.18 × 0.11 mm |
Bruker APEXII diffractometer | 3262 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.031 |
Graphite monochromator | θmax = 27.5°, θmin = 3.1° |
CCD rotation images, thin slices scans | h = −8→8 |
Absorption correction: multi-scan (SADABS; Bruker, 2011) | k = −29→30 |
Tmin = 0.741, Tmax = 0.859 | l = −31→20 |
16897 measured reflections | 2 standard reflections every 120 min |
4210 independent 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)] = 0.025 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.055 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0184P)2 + 1.4548P] where P = (Fo2 + 2Fc2)/3 |
4210 reflections | (Δ/σ)max = 0.004 |
228 parameters | Δρmax = 0.35 e Å−3 |
0 restraints | Δρmin = −0.38 e Å−3 |
[Cd(NCS)2(C7H9NO)2] | V = 3800.6 (2) Å3 |
Mr = 474.89 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 6.6860 (2) Å | µ = 1.39 mm−1 |
b = 23.3658 (7) Å | T = 150 K |
c = 24.3281 (8) Å | 0.33 × 0.18 × 0.11 mm |
Bruker APEXII diffractometer | 4210 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2011) | 3262 reflections with I > 2σ(I) |
Tmin = 0.741, Tmax = 0.859 | Rint = 0.031 |
16897 measured reflections | 2 standard reflections every 120 min |
R[F2 > 2σ(F2)] = 0.025 | 0 restraints |
wR(F2) = 0.055 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.35 e Å−3 |
4210 reflections | Δρmin = −0.38 e Å−3 |
228 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 | ||
Cd1 | 0.99993 (2) | 0.126200 (7) | 0.508711 (7) | 0.02024 (6) | |
S1 | 0.68873 (8) | −0.06757 (2) | 0.53717 (3) | 0.03279 (16) | |
C1 | 0.7845 (3) | −0.00256 (9) | 0.53832 (8) | 0.0191 (5) | |
N1 | 0.8515 (3) | 0.04293 (8) | 0.54015 (8) | 0.0253 (4) | |
S2 | 1.17331 (8) | 0.32408 (2) | 0.44237 (3) | 0.02739 (14) | |
N2 | 1.1259 (3) | 0.21155 (8) | 0.48030 (8) | 0.0266 (4) | |
C2 | 1.1461 (3) | 0.25807 (9) | 0.46565 (9) | 0.0193 (5) | |
N11 | 1.1959 (2) | 0.13518 (7) | 0.58919 (7) | 0.0213 (4) | |
H11A | 1.3247 | 0.1440 | 0.5789 | 0.026* | |
H11B | 1.1478 | 0.1657 | 0.6092 | 0.026* | |
C12 | 1.2028 (3) | 0.08631 (9) | 0.62450 (9) | 0.0220 (5) | |
C13 | 1.3485 (3) | 0.04507 (10) | 0.61900 (10) | 0.0312 (6) | |
H13 | 1.4520 | 0.0498 | 0.5926 | 0.037* | |
C14 | 1.3446 (4) | −0.00363 (11) | 0.65207 (11) | 0.0412 (7) | |
H14 | 1.4466 | −0.0317 | 0.6488 | 0.049* | |
C15 | 1.1926 (5) | −0.01091 (11) | 0.68948 (11) | 0.0441 (7) | |
H15 | 1.1889 | −0.0445 | 0.7115 | 0.053* | |
C16 | 1.0444 (4) | 0.03030 (12) | 0.69545 (9) | 0.0362 (6) | |
H16 | 0.9394 | 0.0249 | 0.7213 | 0.043* | |
C17 | 1.0510 (3) | 0.07931 (10) | 0.66349 (9) | 0.0258 (5) | |
O18 | 0.9195 (2) | 0.12405 (7) | 0.66597 (7) | 0.0344 (4) | |
C19 | 0.7522 (4) | 0.11868 (13) | 0.70215 (11) | 0.0478 (8) | |
H19A | 0.6797 | 0.0833 | 0.6938 | 0.072* | |
H19B | 0.6628 | 0.1515 | 0.6972 | 0.072* | |
H19C | 0.7994 | 0.1176 | 0.7403 | 0.072* | |
N21 | 0.8084 (3) | 0.10925 (8) | 0.42829 (7) | 0.0240 (4) | |
H21A | 0.8731 | 0.0813 | 0.4085 | 0.029* | |
H21B | 0.6879 | 0.0941 | 0.4393 | 0.029* | |
C22 | 0.7653 (3) | 0.15518 (10) | 0.39121 (9) | 0.0230 (5) | |
C23 | 0.5968 (3) | 0.18854 (10) | 0.39643 (9) | 0.0281 (5) | |
H23 | 0.5026 | 0.1805 | 0.4246 | 0.034* | |
C24 | 0.5637 (4) | 0.23401 (11) | 0.36050 (10) | 0.0344 (6) | |
H24 | 0.4466 | 0.2568 | 0.3640 | 0.041* | |
C25 | 0.7010 (4) | 0.24592 (11) | 0.31981 (10) | 0.0380 (6) | |
H25 | 0.6786 | 0.2771 | 0.2955 | 0.046* | |
C26 | 0.8727 (4) | 0.21251 (11) | 0.31418 (9) | 0.0346 (6) | |
H26 | 0.9674 | 0.2209 | 0.2862 | 0.042* | |
C27 | 0.9044 (3) | 0.16704 (10) | 0.34953 (9) | 0.0269 (5) | |
O28 | 1.0642 (2) | 0.13068 (7) | 0.34823 (7) | 0.0348 (4) | |
C29 | 1.1988 (4) | 0.13507 (13) | 0.30289 (10) | 0.0446 (7) | |
H29A | 1.1241 | 0.1312 | 0.2684 | 0.067* | |
H29B | 1.2992 | 0.1046 | 0.3053 | 0.067* | |
H29C | 1.2655 | 0.1724 | 0.3038 | 0.067* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cd1 | 0.02022 (9) | 0.01308 (9) | 0.02743 (10) | −0.00211 (6) | 0.00012 (7) | 0.00258 (7) |
S1 | 0.0237 (3) | 0.0153 (3) | 0.0594 (4) | −0.0043 (2) | 0.0168 (3) | −0.0044 (3) |
C1 | 0.0164 (9) | 0.0193 (12) | 0.0217 (11) | 0.0047 (9) | 0.0036 (9) | 0.0024 (10) |
N1 | 0.0238 (9) | 0.0161 (10) | 0.0361 (11) | 0.0001 (8) | 0.0062 (9) | 0.0016 (9) |
S2 | 0.0211 (3) | 0.0175 (3) | 0.0435 (3) | −0.0045 (2) | −0.0093 (3) | 0.0096 (3) |
N2 | 0.0265 (10) | 0.0169 (10) | 0.0364 (11) | −0.0047 (8) | 0.0035 (9) | 0.0010 (9) |
C2 | 0.0143 (9) | 0.0202 (12) | 0.0235 (11) | −0.0014 (9) | −0.0001 (9) | −0.0028 (10) |
N11 | 0.0192 (8) | 0.0177 (10) | 0.0272 (10) | −0.0018 (8) | 0.0048 (8) | −0.0019 (8) |
C12 | 0.0241 (10) | 0.0196 (11) | 0.0224 (11) | −0.0026 (9) | −0.0044 (9) | −0.0025 (10) |
C13 | 0.0339 (12) | 0.0283 (13) | 0.0314 (13) | 0.0025 (11) | −0.0080 (11) | −0.0051 (12) |
C14 | 0.0588 (17) | 0.0254 (14) | 0.0392 (15) | 0.0107 (13) | −0.0238 (14) | −0.0068 (13) |
C15 | 0.077 (2) | 0.0220 (14) | 0.0334 (15) | −0.0083 (14) | −0.0267 (15) | 0.0048 (12) |
C16 | 0.0501 (15) | 0.0380 (16) | 0.0205 (12) | −0.0184 (13) | −0.0058 (11) | 0.0031 (12) |
C17 | 0.0309 (11) | 0.0254 (13) | 0.0211 (11) | −0.0053 (10) | −0.0024 (10) | −0.0010 (11) |
O18 | 0.0304 (8) | 0.0399 (11) | 0.0330 (9) | 0.0006 (8) | 0.0131 (8) | 0.0038 (8) |
C19 | 0.0336 (14) | 0.070 (2) | 0.0400 (16) | −0.0100 (14) | 0.0149 (12) | −0.0017 (16) |
N21 | 0.0248 (9) | 0.0219 (10) | 0.0253 (10) | −0.0043 (8) | 0.0037 (8) | −0.0030 (9) |
C22 | 0.0289 (11) | 0.0201 (12) | 0.0201 (11) | −0.0065 (10) | −0.0032 (9) | −0.0052 (10) |
C23 | 0.0294 (12) | 0.0292 (13) | 0.0259 (12) | −0.0053 (11) | −0.0023 (10) | −0.0073 (11) |
C24 | 0.0422 (13) | 0.0243 (13) | 0.0366 (14) | 0.0016 (12) | −0.0112 (12) | −0.0102 (12) |
C25 | 0.0625 (17) | 0.0245 (14) | 0.0270 (13) | −0.0068 (13) | −0.0123 (13) | 0.0007 (12) |
C26 | 0.0503 (15) | 0.0342 (15) | 0.0194 (12) | −0.0115 (13) | 0.0036 (11) | −0.0036 (12) |
C27 | 0.0312 (12) | 0.0263 (13) | 0.0231 (12) | −0.0055 (11) | −0.0005 (10) | −0.0060 (11) |
O28 | 0.0319 (8) | 0.0434 (11) | 0.0290 (9) | 0.0008 (8) | 0.0089 (7) | −0.0014 (8) |
C29 | 0.0358 (14) | 0.066 (2) | 0.0321 (14) | −0.0049 (14) | 0.0089 (12) | −0.0082 (14) |
Cd1—N2 | 2.2724 (19) | C16—H16 | 0.9500 |
Cd1—N1 | 2.3142 (18) | C17—O18 | 1.367 (3) |
Cd1—N11 | 2.3653 (17) | O18—C19 | 1.429 (3) |
Cd1—N21 | 2.3718 (17) | C19—H19A | 0.9800 |
Cd1—S1i | 2.7306 (6) | C19—H19B | 0.9800 |
Cd1—S2ii | 2.7449 (6) | C19—H19C | 0.9800 |
S1—C1 | 1.649 (2) | N21—C22 | 1.431 (3) |
S1—Cd1i | 2.7306 (6) | N21—H21A | 0.9200 |
C1—N1 | 1.154 (3) | N21—H21B | 0.9200 |
S2—C2 | 1.653 (2) | C22—C23 | 1.376 (3) |
S2—Cd1iii | 2.7449 (5) | C22—C27 | 1.403 (3) |
N2—C2 | 1.152 (3) | C23—C24 | 1.394 (3) |
N11—C12 | 1.430 (3) | C23—H23 | 0.9500 |
N11—H11A | 0.9200 | C24—C25 | 1.379 (3) |
N11—H11B | 0.9200 | C24—H24 | 0.9500 |
C12—C13 | 1.377 (3) | C25—C26 | 1.395 (3) |
C12—C17 | 1.399 (3) | C25—H25 | 0.9500 |
C13—C14 | 1.394 (3) | C26—C27 | 1.383 (3) |
C13—H13 | 0.9500 | C26—H26 | 0.9500 |
C14—C15 | 1.375 (4) | C27—O28 | 1.365 (3) |
C14—H14 | 0.9500 | O28—C29 | 1.427 (3) |
C15—C16 | 1.389 (4) | C29—H29A | 0.9800 |
C15—H15 | 0.9500 | C29—H29B | 0.9800 |
C16—C17 | 1.385 (3) | C29—H29C | 0.9800 |
N2—Cd1—N1 | 175.76 (6) | O18—C17—C16 | 125.9 (2) |
N2—Cd1—N11 | 88.20 (6) | O18—C17—C12 | 114.0 (2) |
N1—Cd1—N11 | 92.22 (6) | C16—C17—C12 | 120.0 (2) |
N2—Cd1—N21 | 95.50 (7) | C17—O18—C19 | 117.6 (2) |
N1—Cd1—N21 | 84.29 (6) | O18—C19—H19A | 109.5 |
N11—Cd1—N21 | 175.44 (6) | O18—C19—H19B | 109.5 |
N2—Cd1—S1i | 91.92 (5) | H19A—C19—H19B | 109.5 |
N1—Cd1—S1i | 92.31 (4) | O18—C19—H19C | 109.5 |
N11—Cd1—S1i | 87.74 (4) | H19A—C19—H19C | 109.5 |
N21—Cd1—S1i | 89.47 (5) | H19B—C19—H19C | 109.5 |
N2—Cd1—S2ii | 93.16 (5) | C22—N21—Cd1 | 120.21 (13) |
N1—Cd1—S2ii | 82.60 (4) | C22—N21—H21A | 107.3 |
N11—Cd1—S2ii | 92.54 (4) | Cd1—N21—H21A | 107.3 |
N21—Cd1—S2ii | 89.92 (5) | C22—N21—H21B | 107.3 |
S1i—Cd1—S2ii | 174.914 (18) | Cd1—N21—H21B | 107.3 |
C1—S1—Cd1i | 99.97 (7) | H21A—N21—H21B | 106.9 |
N1—C1—S1 | 178.8 (2) | C23—C22—C27 | 119.8 (2) |
C1—N1—Cd1 | 158.10 (18) | C23—C22—N21 | 122.1 (2) |
C2—S2—Cd1iii | 109.52 (7) | C27—C22—N21 | 118.0 (2) |
C2—N2—Cd1 | 164.95 (17) | C22—C23—C24 | 120.3 (2) |
N2—C2—S2 | 178.0 (2) | C22—C23—H23 | 119.9 |
C12—N11—Cd1 | 116.38 (13) | C24—C23—H23 | 119.9 |
C12—N11—H11A | 108.2 | C25—C24—C23 | 119.9 (2) |
Cd1—N11—H11A | 108.2 | C25—C24—H24 | 120.0 |
C12—N11—H11B | 108.2 | C23—C24—H24 | 120.0 |
Cd1—N11—H11B | 108.2 | C24—C25—C26 | 120.4 (2) |
H11A—N11—H11B | 107.3 | C24—C25—H25 | 119.8 |
C13—C12—C17 | 119.8 (2) | C26—C25—H25 | 119.8 |
C13—C12—N11 | 121.6 (2) | C27—C26—C25 | 119.7 (2) |
C17—C12—N11 | 118.52 (19) | C27—C26—H26 | 120.2 |
C12—C13—C14 | 120.1 (2) | C25—C26—H26 | 120.2 |
C12—C13—H13 | 119.9 | O28—C27—C26 | 125.7 (2) |
C14—C13—H13 | 119.9 | O28—C27—C22 | 114.4 (2) |
C15—C14—C13 | 119.8 (2) | C26—C27—C22 | 120.0 (2) |
C15—C14—H14 | 120.1 | C27—O28—C29 | 117.82 (19) |
C13—C14—H14 | 120.1 | O28—C29—H29A | 109.5 |
C14—C15—C16 | 120.7 (2) | O28—C29—H29B | 109.5 |
C14—C15—H15 | 119.6 | H29A—C29—H29B | 109.5 |
C16—C15—H15 | 119.6 | O28—C29—H29C | 109.5 |
C17—C16—C15 | 119.4 (2) | H29A—C29—H29C | 109.5 |
C17—C16—H16 | 120.3 | H29B—C29—H29C | 109.5 |
C15—C16—H16 | 120.3 | ||
N11—Cd1—N1—C1 | −141.7 (4) | C13—C12—C17—C16 | −1.7 (3) |
N21—Cd1—N1—C1 | 35.3 (4) | N11—C12—C17—C16 | 175.03 (19) |
S1i—Cd1—N1—C1 | −53.9 (4) | C16—C17—O18—C19 | −4.3 (3) |
S2ii—Cd1—N1—C1 | 126.0 (4) | C12—C17—O18—C19 | 176.0 (2) |
N11—Cd1—N2—C2 | −122.1 (7) | N2—Cd1—N21—C22 | −16.79 (16) |
N21—Cd1—N2—C2 | 60.6 (7) | N1—Cd1—N21—C22 | 158.96 (16) |
S1i—Cd1—N2—C2 | 150.2 (7) | S1i—Cd1—N21—C22 | −108.66 (15) |
S2ii—Cd1—N2—C2 | −29.6 (7) | S2ii—Cd1—N21—C22 | 76.39 (15) |
N2—Cd1—N11—C12 | −171.56 (15) | Cd1—N21—C22—C23 | −90.3 (2) |
N1—Cd1—N11—C12 | 12.66 (14) | Cd1—N21—C22—C27 | 87.6 (2) |
S1i—Cd1—N11—C12 | −79.56 (14) | C27—C22—C23—C24 | 0.0 (3) |
S2ii—Cd1—N11—C12 | 95.35 (14) | N21—C22—C23—C24 | 177.95 (19) |
Cd1—N11—C12—C13 | 91.3 (2) | C22—C23—C24—C25 | −0.5 (3) |
Cd1—N11—C12—C17 | −85.4 (2) | C23—C24—C25—C26 | 0.4 (4) |
C17—C12—C13—C14 | 0.2 (3) | C24—C25—C26—C27 | 0.3 (4) |
N11—C12—C13—C14 | −176.4 (2) | C25—C26—C27—O28 | 179.3 (2) |
C12—C13—C14—C15 | 1.3 (4) | C25—C26—C27—C22 | −0.8 (3) |
C13—C14—C15—C16 | −1.2 (4) | C23—C22—C27—O28 | −179.42 (19) |
C14—C15—C16—C17 | −0.3 (4) | N21—C22—C27—O28 | 2.6 (3) |
C15—C16—C17—O18 | −178.0 (2) | C23—C22—C27—C26 | 0.6 (3) |
C15—C16—C17—C12 | 1.7 (3) | N21—C22—C27—C26 | −177.39 (19) |
C13—C12—C17—O18 | 178.09 (19) | C26—C27—O28—C29 | −8.1 (3) |
N11—C12—C17—O18 | −5.2 (3) | C22—C27—O28—C29 | 172.00 (19) |
Symmetry codes: (i) −x+2, −y, −z+1; (ii) x−1/2, −y+1/2, −z+1; (iii) x+1/2, −y+1/2, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
N11—H11A···S2iii | 0.92 | 2.50 | 3.4182 (17) | 174 |
N21—H21B···S1iv | 0.92 | 2.66 | 3.5637 (18) | 169 |
N11—H11B···O18 | 0.92 | 2.28 | 2.641 (2) | 103 |
N21—H21A···O28 | 0.92 | 2.26 | 2.640 (2) | 104 |
Symmetry codes: (iii) x+1/2, −y+1/2, −z+1; (iv) −x+1, −y, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Cd(NCS)2(C7H9NO)2] |
Mr | 474.89 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 150 |
a, b, c (Å) | 6.6860 (2), 23.3658 (7), 24.3281 (8) |
V (Å3) | 3800.6 (2) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 1.39 |
Crystal size (mm) | 0.33 × 0.18 × 0.11 |
Data collection | |
Diffractometer | Bruker APEXII |
Absorption correction | Multi-scan (SADABS; Bruker, 2011) |
Tmin, Tmax | 0.741, 0.859 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 16897, 4210, 3262 |
Rint | 0.031 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.025, 0.055, 1.02 |
No. of reflections | 4210 |
No. of parameters | 228 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.35, −0.38 |
Computer programs: APEX2 (Bruker, 2011), SAINT (Bruker, 2011), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Brandenburg & Berndt, 2001) and Mercury (Macrae et al., 2008), WinGX (Farrugia, 2012) and publCIF (Westrip, 2010).
Cd1—N2 | 2.2724 (19) | Cd1—N21 | 2.3718 (17) |
Cd1—N1 | 2.3142 (18) | Cd1—S1i | 2.7306 (6) |
Cd1—N11 | 2.3653 (17) | Cd1—S2ii | 2.7449 (6) |
Symmetry codes: (i) −x+2, −y, −z+1; (ii) x−1/2, −y+1/2, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
N11—H11A···S2iii | 0.92 | 2.50 | 3.4182 (17) | 174.3 |
N21—H21B···S1iv | 0.92 | 2.66 | 3.5637 (18) | 169.4 |
Symmetry codes: (iii) x+1/2, −y+1/2, −z+1; (iv) −x+1, −y, −z+1. |
Acknowledgements
The authors gratefully acknowledge the support of the Tunisian Ministry of Higher Education and Scientific Research.
References
Bai, Y., Hu, X., Dang, D., Bi, F. & Niu, J. (2011). Spectrochim. Acta, 78, 70–73. CSD CrossRef Google Scholar
Bartlett, H. E., Jurriaanse, A. & De Haas, K. (1969). Can. J. Chem. 47, 2981–2986. CrossRef CAS Web of Science Google Scholar
Brandenburg, K. & Berndt, M. (2001). DIAMOND. Crystal Impact, Bonn, Germany. Google Scholar
Bruker (2011). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Chen, H., Zhang, L., Cai, Z., Guang Yanga, G. & Chen, X. (2000). J. Chem. Soc. Dalton Trans. pp. 2463–2466. Web of Science CSD CrossRef Google Scholar
Domenicano, A. & Murray-Rust, P. (1979). Tetrahedron Lett. 24, 2283–2286. CrossRef Google Scholar
Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849–854. Web of Science CrossRef CAS IUCr Journals Google Scholar
Karoui, S., Kamoun, S. & Jouini, A. (2013). J. Solid State Chem. 197, 60–68. Web of Science CSD CrossRef CAS Google Scholar
Macrae, C. F., Bruno, I. J., Chisholm, J. A., Edgington, P. R., McCabe, P., Pidcock, E., Rodriguez-Monge, L., Taylor, R., van de Streek, J. & Wood, P. A. (2008). J. Appl. Cryst. 41, 466–470. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920–925. Web of Science CrossRef CAS IUCr Journals Google Scholar
Wöhlert, S., Boeckmann, J., Jess, I. & Näther, C. (2012). CrystEngComm, 14, 5412–5420. Google Scholar
Wöhlert, S., Jess, I. & Näther, C. (2013). Z. Anorg. Allg. Chem. 639, 385–391. Google Scholar
Yang, G., Zhu, H., Liang, B. & Chen, X. (2001). J. Chem. Soc. Dalton Trans. pp. 580–585. Web of Science CSD CrossRef 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.
The crystal engineering of inorganic-organic hybrid coordination polymers is currently one of the most active fields in coordination chemistry, supramolecular and materials chemistry. These compounds attract significant attention for their architectures and topologies (Yang et al., 2001). Hybrid inorganic-organic thiocyanate materials exhibit interesting physical properties such electrical conductivity and dielectric relaxation process (Karoui et al., 2013) and may have potential applications in non-linear optics and luminescence (Chen et al., 2000; Bai et al., 2011). Herein we report the structure of a new polymeric hybrid title compound
As shown in Fig. 1, each cadmium atom, which sits on general position, is coordinated by two trans N-bonded and two trans S-bonded thiocyanato anions. Two trans-coordinated 2-methoxy aniline ligands complete the octahedral coordination geometry around cadmium. The crystal structure of the title compound consists of both simply and doubly µ-1,3-SCN–bridged two dimensional networks parallel to the ab plane with terminal neutral 2-methoxyaniline ligands (Fig. 2). In the CdN4S2 core, the Cd—N and Cd—S bonds span the range 2.2724 (19)–2.3718 (17) Å and 2.7306 (6)–2.7449 (6) Å, respectively (Table 1). These values are in good agreement with those observed in other similar complexes (Wöhlert et al., 2012, 2013; Yang et al., 2001). The bond angles involving the cadmium(II) cation range from 84.29 (6) to 95.50 (7)° and from 174.91 (2) to 175.76 (6)°. The double-bridging role of S1/C1/N1 anions gives rise to eight-membered Cd2(SCN)2 rings in a chair conformation because of the almost linear SCN groups (S1–C1–N1 angle = 178.76 (21)°). The distance between adjacent Cd atoms in the Cd2(SCN)2 rings is 5.9127 (4) Å. Again, these rings built up a 2-D sheet through their corner-sharing action at the two cadmium atoms via the linear S2/C2/N2 anions (S1–C1–N1 angle = 177.96 (21)°) and give rise to thirty-membered [Cd6(µ-SCN-N,S)8] macrocycles as subunits, as shown in Fig. 2. The bond angles in the phenyl groups deviate significantly from the idealized value of 120° due to the effect of the substituent. In fact, it was established that the angular deformations of phenyl groups can be described as a sum of the effects of the different substituents (Domenicano & Murray-Rust, 1979). The phenyl rings of both independent 2-methoxyaniline ligands are planar with the greatest deviation from the six-atoms least-square plane of 0.0029 Å and 0.0073 Å. They are well ordered with C–C–C angles in agreement with the expected sp2 hybridation. The π-π interactions between phenyl rings may be neglected (>4 Å); in fact the shortest distances between the centroids of the rings are: Cg1 ··· Cg1i = 5.6130 (14) Å; Cg1 ··· Cg2ii = 5.5949 (14) Å (Cg1 and Cg2 are the centroids of the C12–C17 and C22–C27 rings, respectively; symmetry codes: (i) -0.5+x, +y, 1.5-z; 2.-x, -y, 1.-z). The major contributions to the cohesion and the stability of the polymeric structure is the presence of intralayer N—H···S hydrogen bonds which include two relatively long contacts, with H···S and N..S distances ranging from 2.50 to 2.66 Å and 3.4182 (17) Å to 3.5637 (18) Å, respectively (Table 2).