【摘 要】
：
Three novel amino acid salts of 12-molybdosilicate formulated (Gly)6H4SiMo12O40·8H2O 1, K3(HGly)SiMo12O40·4H2O 2 and K2(HGly)2SiMo12O40·9H2O 3 (Gly = NH3CH2C
【机 构】
：
State Key Laboratory of Structural Chemistry,Graduate School of the Chinese Academy of Sciences
【基金项目】
：
the National Natural Science Foundation of China;中国科学院\"百人计划\"
论文部分内容阅读
Three novel amino acid salts of 12-molybdosilicate formulated (Gly)6H4SiMo12O40·8H2O 1, K3(HGly)SiMo12O40·4H2O 2 and K2(HGly)2SiMo12O40·9H2O 3 (Gly = NH3CH2COO) were synthesized and characterized by elemental analysis, IR and single-crystal X-ray analysis. Com- pound 1 crystallizes in trigonal, space group R-3 with a = 17.0742(3), b = 17.0742(3), c = 16.792(4)(A), γ = 120o, F(000) = 3474, Mr = 2413.92, Z = 3, V = 4239.4(14) (A)3, Dc = 2.837 g/cm3, μ(MoKα) = 2.728 mm-1, the final R = 0.0622, wR = 0.1549 (I > 2σ(I)) and GOF = 1.143. In compound 1, each [SiMo12O40]4- unit is surrounded by six Gly molecules through hydrogen bonding. Compounds 2 and 3 crystallize in monoclinic, space groups P2/c and P21/c, respectively. The pH value of the reaction media plays a crucial role in the formations of the three compounds.
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