Hydrothermal Synthesis and Crystal Structure of a New Hexa-cobalt-containing POM  

作　　者：傅春花 郑寿添 杨国昱 

机构地区：[1]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences,Fuzhou, Fujian 350002, China

出　　处：《Chinese Journal of Structural Chemistry》2008年第8期943-948,共6页结构化学（英文）

基　　金：the NNSFC (Nos. 20473093 and 20271050),the Talents Program of the Chinese Academy of Sciences;the NSF of Fujian Province (No. E0510030);the State Important Scientific Research Program (No. 2006CB932904)

摘　　要：A new compound Na3H3[Co（en）3]2[Co4（H2O）2（PW9O34）2]·11H2O 1 （en = ethylenediamine） has been synthesized under hydrothermal conditions and characterized by IR, TGA, and single-crystal X-ray diffraction analysis. Crystal data： monoclinic, space group C21c, a = 26.336（5）, b = 18.135（2）, c = 22.751（4）A, β = 123.039（7）° and Z = 4. X-ray crystallographic study on compound 1 reveals that it includes a Weakley-type sandwich polyoxoanion [Co4（H2O）2（PW9O34）2]^10-, two complex ions [Co（en）3]^2＋, three Na^＋ ions （one Na（1） and two Na（2））, and eleven crystallographic water molecules. The sandwich polyoxoanions are linked by Na2 to form 2D layers parallel to the （100） plane, and these layers are further connected by Nal along the α-axis to generate a 3D structure.A new compound Na3H3[Co（en）3]2[Co4（H2O）2（PW9O34）2]·11H2O 1 （en = ethylenediamine） has been synthesized under hydrothermal conditions and characterized by IR, TGA, and single-crystal X-ray diffraction analysis. Crystal data： monoclinic, space group C21c, a = 26.336（5）, b = 18.135（2）, c = 22.751（4）A, β = 123.039（7）° and Z = 4. X-ray crystallographic study on compound 1 reveals that it includes a Weakley-type sandwich polyoxoanion [Co4（H2O）2（PW9O34）2]^10-, two complex ions [Co（en）3]^2＋, three Na^＋ ions （one Na（1） and two Na（2））, and eleven crystallographic water molecules. The sandwich polyoxoanions are linked by Na2 to form 2D layers parallel to the （100） plane, and these layers are further connected by Nal along the α-axis to generate a 3D structure.

关 键 词：POLYOXOMETALATE KEGGIN cobalt hydrothermal synthesis crystal structure 

分 类 号：O627[理学—有机化学]