| Synthesis and Crystal Structure of catena-Poly[bis-(benzimidazole)cobalt(II) μ-Phthalato] |
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| 引用本文： | 薛宇虹,张骊,徐端钧.Synthesis and Crystal Structure of catena-Poly[bis-(benzimidazole)cobalt(II) μ-Phthalato][J].结构化学,2005(9). |
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| 作者姓名： | 薛宇虹 张骊 徐端钧 |
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| 作者单位： | Department of Chemistry，Zhejiang University，Hangzhou 310027，China，Zhejiang Gongshang University，Food and Environment Science College，Hangzhou 310012，China，Department of Chemistry，Zhejiang University，Hangzhou 310027，China |
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| 基金项目： | The work was supported by the National Natural Science Foundation of China (20443003) |
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| 摘 要： | 1 INTRODUCTION Chemists have recognized that intermolecular inter- actions are the basis of functional properties for most molecular assembles, and detailed understan- ding of non-covalent chemistry is therefore funda- mental to interpreting and predicting the relation- ship between structure and function. Among intermo- lecular interactions, the π-π stacking between aro- matic rings is correlated with the electron transfer process in some biological systems1], and the nature of π-π s…
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| 关 键 词： | polymeric Co(II) complex benzimidazole crystal structure π-π stacking |
Synthesis and CrystalStructure of catena-Poly[bis-(benzimidazole)cobalt(II) μ-Phthalato] |
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| Abstract: | The title polymeric complex Co(C8H4O4)(C7H6N2)2]n has been prepared and its crystal structure was determined by X-ray diffraction method. The crystal belongs to monoclinic, space group C2/c with a = 7.7865(12), b = 20.4215(18), c = 13.4880(14) , ( = 103.298(2)o, V = 2087.3(4) 3, Mr = 459.32, Z = 4, Dc= 1.462 g/cm3, ( = 0.859 mm-1, F(000) = 940, R = 0.0636 and wR = 0.1639 for 1278 observed reflections (I > 2((I)). The complex assumes a distorted tetrahedral coordination geometry, formed by two phthalate anions and two benzimidazoles (bzim). The phthalate anions bridge the neighboring Co(II) atoms to form the polymeric chains. The centroid distance of 3.471(3) between the parallel bzim rings of adjacent polymeric chains suggests the existence of (-( stacking. |
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| Keywords: | polymeric Co(II) complex benzimidazole crystal structure π-π stacking |
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