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Synthese and lyotropic liquid crystal properties of a series of sandwich-type tungstoarsenates heteropoly compounds with As/W ratio of 4-30

机译:As / W比为4-30的一系列三明治型钨砷酸盐杂多化合物的合成和溶致液晶性质

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A series of sandwich-type tungstoarsenates heteropoly compounds with As/W ratio of 4/30, Na_16[As_4W_30M_4(H_2O)_2O_112].XH_2O(M = Zn, Cu, Co, Ni, Mn and Cd), have been synthe- sized for the first time and structurally characterized by elemental analysis, IR and ~183W NMR spectra. The crystal structure of Na_16[As_4W_30Cu_4(H_2O)_2O_112].6H_2O was determined to be a triclinic system, of P1 symmetry, a = 1.272 1(3)nm, b = 2.451 6(5)nm, c = 2.645 0(5)nm, α=89.90(3)°,β=77.32(3)°,?=89.96(3)°, Z = 2.
机译:合成了一系列夹心型钨锡砷杂多化合物,As / W比为4/30,Na_16 [As_4W_30M_4(H_2O)_2O_112] .XH_2O(M = Zn,Cu,Co,Ni,Mn和Cd)首次并通过元素分析,IR和〜183W NMR光谱对其结构进行了表征。 Na_16 [As_4W_30Cu_4(H_2O)_2O_112] .6H_2O的晶体结构被确定为三斜晶系,具有P1对称性,a = 1.272 1(3)nm,b = 2.451 6(5)nm,c = 2.645 0(5 )nm,α= 89.90(3)°,β= 77.32(3)°,θ= 89.96(3)°,Z = 2。

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