Synthesis and Structural Characterization of Three New Inorganic “Host-guest”Polyoxomolybdates  

作　　者：杨文斌 卢灿忠 庄鸿辉 

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

出　　处：《Chinese Journal of Chemistry》2003年第8期1066-1072,共7页中国化学（英文版）

基　　金：theMajorStateBasicResearchDevelopmentProgramm (No .0 0 1CB10 890 6) ;theNationalNaturalScienceFoun dationofChina (Nos .90 2 0 60 40and 2 0 0 73 0 48) ;theNaturalScienceFoundationofFujianProvince (Nos .2 0 0 0 2F0 15and 2 0 0 2J0 0 6);theState

摘　　要：Since two interesting inorganic “host guest” polyoxomolybdates 1 and 2 have been reported previously, we have now succeeded in selectively isolating three new acetated “host guest” polyoxomolybdates 3—5, which considerably extend the range of structures in the cyclic polyoxomolybdate catalogue. 3 crystallizes in the triclinic space group P 1 with a =1 22235(1) nm, b =1 52977(2) nm, c =1 54022(1) nm, α =113 746(1)°, β =96 742(1)°, γ = 101 564(1)°, V =2 51892(4) nm 3, Z =1, D c=2 568 g·cm -3 . 4 and 5 crystallize in the monoclinic system: P 2(1)/ n , a =1 08298(2) nm, b =1 54029(1) nm, c = 2 78893(5) nm, β =94 2730(10)°, V =4 63929(12) nm 3, Z =2 and D c=2 671 g·cm -3 for 4, and C 2/ c , a =2 59907(8) nm, b =1 65992(3) nm, c =2 28473(7) nm, β = 93 4370(10)° , V =9 8392(5) nm 3, Z =4 and D c=2 556 g·cm -3 for 5. The structures of 3, 4 and 5 consist of 18 membered “host guest” polyoxoanions [{Na(X) 2}{( μ 3 OH) 4Mo V 8Mo VI 10 O 52 ( μ 2 CH 3COO) 2}] -( n +9) (X=CH 3COO - for 3, DMF for 4 and H 2O for 5), which are connected via Na + ions or hydrogen bonds into infinite extended frameworks.Since two interesting inorganic “host guest” polyoxomolybdates 1 and 2 have been reported previously, we have now succeeded in selectively isolating three new acetated “host guest” polyoxomolybdates 3—5, which considerably extend the range of structures in the cyclic polyoxomolybdate catalogue. 3 crystallizes in the triclinic space group P 1 with a =1 22235(1) nm, b =1 52977(2) nm, c =1 54022(1) nm, α =113 746(1)°, β =96 742(1)°, γ = 101 564(1)°, V =2 51892(4) nm 3, Z =1, D c=2 568 g·cm -3 . 4 and 5 crystallize in the monoclinic system: P 2(1)/ n , a =1 08298(2) nm, b =1 54029(1) nm, c = 2 78893(5) nm, β =94 2730(10)°, V =4 63929(12) nm 3, Z =2 and D c=2 671 g·cm -3 for 4, and C 2/ c , a =2 59907(8) nm, b =1 65992(3) nm, c =2 28473(7) nm, β = 93 4370(10)° , V =9 8392(5) nm 3, Z =4 and D c=2 556 g·cm -3 for 5. The structures of 3, 4 and 5 consist of 18 membered “host guest” polyoxoanions [{Na(X) 2}{( μ 3 OH) 4Mo V 8Mo VI 10 O 52 ( μ 2 CH 3COO) 2}] -( n +9) (X=CH 3COO - for 3, DMF for 4 and H 2O for 5), which are connected via Na + ions or hydrogen bonds into infinite extended frameworks.

关 键 词：inorganic “host  guest” polyoxomolybdate SYNTHESIS structural characterization 

分 类 号：O631[理学—高分子化学]