| Synthesis, Crystal Structure and Electrochemistry Properties of a (N,N'-Ethylene-bis(salicylaldiminato)) Nickel(Ⅱ) Complex, [Ni2(salen)2]·NCS-NH4 |
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| 作者单位： | FENG Xun（Department of Chemistry, Luoyang Normal University, Luoyang 471022, China） ;
DU Zhong-Xiang（Department of Chemistry, Luoyang Normal University, Luoyang 471022, China） ;
YE Bao-Xian（Department of Chemistry, Zhengzhou University, Zhengzhou 450052, China） ;
CUI Fu-Na（Department of Chemistry, Luoyang Normal University, Luoyang 471022, China） ; |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China (No. 20471026) and the Natural Science Foundation of Henan Province (No. 0311021200) |
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| 摘 要： | A new Ni(Ⅱ) complex Ni2(salen)2]·(NCS)·NH4 (salen = N,N'-bis(salicylidenea-mino)ethanato) has been prepared and structurally characterized by elemental analysis, IR spectra and single crystal X-ray diffraction. It crystallizes in the orthorhombic system, space group Pbca with a = 16.8725(13), b = 19.0046(15), c = 20.0583(16) (A), Z = 8, V = 6431.8(9) (A)3, C33H32N6Ni2O4S1, Mr= 726.13, Dc = 1.500 g/cm3, F(000) = 3008, μ = 1.284 mm-1, the final R = 0.0394 and wR = 0.0767 for 4449 observed reflections with Ⅰ＞2σ(Ⅰ). The complex involves a N,N'-ethylene-bis(salicylaldiminato) Schiff base, an isothiocyanato anion and an ammonium cation. The nickle(Ⅱ) ion adopts a distorted square coordination geometry with N2O2 set of Schiff base ligand. The complexes are linked into a dimmer via intermolecular hydrogen bonds and the Ni(salen)] moieties are connected together to form a 2-D layer structure by intermolecular N-H…O hydrogen bonds and π-π stacking. Cyclic-voltammetry method was used to characterize electrochemically the complex.
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| 关 键 词： | crystal structure nickel(Ⅱ) complex Schiff base hydrogen bond |
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