具有方石英拓扑结构的微孔硫代锗锌酸盐的溶剂热合成与表征  

Solvothermal Synthesis and Characterization of an Open-framework Thiozincogermanate with a Cristobalite Topology

作　　者：朱阳春[1] 叶玲[2] 白音孟和[1] 刘新[1] 安永林[1] 

机构地区：[1]大连理工大学化学系,大连116024 [2]吉林大学超分子结构与材料教育部重点实验室,长春130012

出　　处：《高等学校化学学报》2004年第12期2224-2226,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 0 0 710 0 6)资助

摘　　要：An open-framework thiozincogermanate was solvothermally synthesized and characterized by single crystal diffraction. The crystal crystallizes in the tetragonal system, space group I-42d with a=1.106 31(16) nm, c=1.914 6(4) nm, V=2.343 3(7) nm 3, Z=16, D c=1.550 g·cm -3, R= 0.054 2, wR=0.095 7. The structure is composed of supertetrahedron A 4S 4- 10(A=Zn or Ge) linked together by bridging sulfur atoms to produce a cristobalite topology, all Ge atoms are tetrahedrally coordinated, sulfur atoms have 2-coordinations, and Zn atoms replace Ge atoms in the framework. The compound has 1D channels along a (or b) direction with pore sizes of 1.064 nm×0.846 nm. UV-Vis reflectance spectrum show that the compound is a semiconductor with a optical gap of 3.0 eV. TG-DSC results indicate that this open-framework has a good stability in nitrogen.An open-framework thiozincogermanate was solvothermally synthesized and characterized by single crystal diffraction. The crystal crystallizes in the tetragonal system, space group I-42d with a=1.106 31(16) nm, c=1.914 6(4) nm, V=2.343 3(7) nm 3, Z=16, D c=1.550 g·cm -3, R= 0.054 2, wR=0.095 7. The structure is composed of supertetrahedron A 4S 4- 10(A=Zn or Ge) linked together by bridging sulfur atoms to produce a cristobalite topology, all Ge atoms are tetrahedrally coordinated, sulfur atoms have 2-coordinations, and Zn atoms replace Ge atoms in the framework. The compound has 1D channels along a (or b) direction with pore sizes of 1.064 nm×0.846 nm. UV-Vis reflectance spectrum show that the compound is a semiconductor with a optical gap of 3.0 eV. TG-DSC results indicate that this open-framework has a good stability in nitrogen.

关 键 词：微孔硫化物 晶体结构 空旷骨架 热稳定性 半导体 

分 类 号：O613[理学—无机化学]