【摘要】 <正>由于大环超分子配合物在材料科学和生命科学中应用广泛,多酸盐也因其在工业催化和医药临床等方面的作用令人瞩目,且大环化合物作为主体分子在选择客体分子时显示出特有的分子识别性,多酸阴离子也随化学环境的变化呈现出聚合度和结构更多还原

【Abstract】 A super-molecular complex, [Na(DB18C6)(CH3CN)]2W6O19·(CH3CN)2, was obtained by solvothermal reaction and characterized by IR , 1H NMR, gumbc spectrum single crystal and X-ray diffraction. The compou-nd crystallizes in monoclinic space group P21/c with a=1.185 22(4) nm, b=2.091 51(8) nm, c=1.487 19(5) nm, β=117.467(2)° and Z=2. The complex contains four basic units: Na+, CH3CN, DB18C6 and W6O192-. Sodium ions located in the cavity of dibenzo-18-crown-6 with 6 Na-O bonds and the crown ether-sodium ion complex is supported on the terminal oxygen atoms of the typical Lindqvist isopolyanion W6O192-via the coordinative interactions. W6O192-located between two DB18C6 and led to the formation of the "hamburger" structure. Two isolated CH3CN are included in the complex. The whole title crystal is stabilized by van der waals force. CCDC: 292369.更多还原