【摘要】 研究了多金属氧酸盐分子基化合物K3[Cr3O(OOCH)6(H2O)3][α GeW12O40]·17H2O的合成、晶体结构及其结晶水可逆脱附和吸附性能.该化合物属于单斜晶系,C2/m空间群,a=2 7383(6)nm,b=1 5830(3)nm,c=1 7304(4)nm,β=102 43(3)°,V=7 325(3)nm3,Z=4,R1(wR2)=0 0678(0 1719).该晶体具有孔道结构,孔道内的结晶水能够可逆的脱附和吸附,而晶体结构随之恢复,因此具有分子筛的特性.更多还原

【Abstract】 A new functional molecule based on the large macro [Cr₃O（OOCH）₆（H₂O）₃]⁺ and [αGeW₁₂O₄₀]⁴,K₃[Cr₃O（OOCH）₆（H₂O）₃][αGeW₁₂O₄₀]·17H₂O, was synthesized and characterized by elemental analysis,IR,thermogravimetric analysis and Xray singlecrystal diffraction.The compound crystallizes in the monoclinic space group C₂/m with a=2.738 3（6）nm,b=1.583 0（3）nm,c=1.730 4（4）nm,β= （102.43（3）°）,V=7.32 5（3）nm³,Z=4,R₁（wR₂）= 0.067 8（0.171 9）.Desorption and absorption of water of crystallization were performed,showing that some water molecules of crystallization can be desorbed from the compound by the evacuation at room temperature and the dehydrated compound can absorb water molecules with the restoration of the Xray powder diffraction pattern.更多还原