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配位聚合物[Co2(bte)3(NCS)4(H2O)2]n的合成和晶体结构
引用本文:张福良,沈良. 配位聚合物[Co2(bte)3(NCS)4(H2O)2]n的合成和晶体结构[J]. 杭州师范学院学报(自然科学版), 2008, 7(2): 121-125
作者姓名:张福良  沈良
作者单位:杭州师范大学,材料与化学化工学院,淅江,杭州,310036
摘    要:合成了标题化合物[Co2(bte)3(NCS)4(H2O)2]n(bte=1,2-双(三氮唑-1-基)乙烷),用X射线单晶衍射仪测定了晶体结构,空间群为Pi,a=7.7962(2),b=8.3407(4),c=14.7735(5)A,α=86.835(2),β=76.2031(9),γ=80.583(3)°.晶体包含两个独立的结构[Co(bte)(NCS)2(H2O)2]和[Co(bte)2(NCS)2].[Co(bte)(NCS)2(H2O)2]的结构是由1个bte配体桥联2个Co^2+离子形成的一维中性链,其中Co^2+离子位于由bte的4个氮原子和2个反式NCS^-的2个氮原子和2个水分子组成的扭曲八面体环境中.[Co(bte)2(NCS)2]的结构是由2个bte配体桥联2个Co^2+离子形成的一维中性链,其中Co^2+离子位于由bte的4个氮原子和两个反式NCS^-的2个氮原子组成的扭曲八面体环境中.

关 键 词:钴(Ⅱ)配合物  bte-桥联  配位聚合物  晶体结构
文章编号:1674-232X(2008)02-0121-05
修稿时间:2007-12-29

Synthesis and Crystal Structure of a Coordination Polymer [Co2(bte)3(NCS)4(H2O)2]n
ZHANG Fu-liang,SHEN Liang. Synthesis and Crystal Structure of a Coordination Polymer [Co2(bte)3(NCS)4(H2O)2]n[J]. Journal of Hangzhou Teachers College(Natural Science), 2008, 7(2): 121-125
Authors:ZHANG Fu-liang  SHEN Liang
Affiliation:(College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China)
Abstract:The title complex [Co2 (bte) 3 (NCS) 4 ( H2O) 2]n ( bte = 1,2-bis (triazol-l-yl) ethane) has been prepared and characterized. Single-crystal X-ray analysis reveals that the complex crystallizes in space group Pi with a= 7. 796 2(2), b= 8.340 7(4), c=14.773 5(5) A, α=86.835(2), β=76.203 1(9), γ=80.583(3)°. The crystal consists of two discrete complexes,[Co(bte)2 (NCS)2] and [Co(bte) (NCS)2 (H2O)2 ]. The structure of [Co(bte)2 (NCS)2] demonstrates a one- dimensional neutral chain through bte-bridge, in which the Co(Ⅱ) atom is in a distorted octahedral environment formed by four nitrogen atoms of the triazoles and two nitrogen atoms from two trans thiocyanato liagnds. The structure of [Co(bte) (NCS)2(H2O)2] consists of neutral chain containing Co(Ⅱ) bridged by bte molecules. The six-co-ordination of Co^2+ is achieved by means of two trans NCS ions and water molecules. The IR spectra have also been investigated.
Keywords:Cobalt(Ⅱ)  bte-bridge  polymeric complex  crystal structure
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