摘要
本文利用水热技术合成了一个新型无机有机杂化的硅钨酸盐[Cu6(μ3-OH)_3(H_2O)_2(deta)_3H(B-α-SiW_9O_(34))]。对该化合物进行了红外光谱、元素分析、热重分析和X-射线单晶衍射分析,表明化合物1是由三缺位的Keggin片段和原位生成的六核铜簇组成,这样的结构单元通过单桥连成一维链,铜的八面体构型由于姜泰勒效应而发生形变,这是化合物1形成的一个重要条件。
A new inorganic-organic hybrid silicotungstates built from trivacant Keggin fragments and in situ generated hexa-CuⅡ clusters [Cu6( μ_3-OH)_3( H_2O)_2( deta)_3H( B-α-SiW_9O_(34)) ]were hydrothermally synthesized by reaction of CuCl_2·2H_2O and trivacant Keggin polyoxoanion Na_(10)[A-α-SiW_9O_(34)]·18H_2O in the presence of diethylenetriamine under hydrothermal conditions and characterized by IR spectroscopy,elemental analysis,thermogravimetric analysis,single-crystal X-ray diffraction. Single-crystal X-ray diffraction indicates that 1 is a new 1D chain constructed from[Cu6(deta)_3SiW_9(H_2O)_2]units by single-bridging mode. Importantly,the CuⅡ-polyhedra Jahn-Tell distortion plays a crucial role in the formation of 1.
出处
《黑龙江科学》
2017年第4期10-12,共3页
Heilongjiang Science
基金
大庆师范学院博士科研启动基金(16ZR04)
黑龙江省大学生创新创业训练计划项目(201510235042)
关键词
硅钨酸盐
六核铜
合成
晶体结构
Silicotungstates
Hexa-CuⅡ
Synthesize
Crystal structure