以3种Keggin型杂多酸钾和杯[4]芳烃四乙酸乙酯衍生物(C60H80O12,L)为原料,合成了一个杯-簇型无机-有机杂化配合物和两个杯-簇-杯型主-客体配合物:[L-K1·5]4[HPW12O40]3·CH3COCH3(1),[L-K2]2·[SiW12O40]·2CH2Cl2·CHCl3(2)和[L-K1·5]2[PMo12O40]·2CHCl3(3).通过元素分析、IR、TG-DTA和X射线衍射等手段对配合物进行了表征,测得了其晶体结构.研究结果表明,配合物1中杯[4]芳烃衍生物钾配阳离子与Keggin型磷钨酸多阴离子属典型的无机-有机杂化结构.钾离子完全进入杯[4]芳烃衍生物的空腔,并与氧原子形成配位键,多阴离子则表现为相对孤立的阴离子簇,其金属氧簇结构基本保持不变.配合物2和3的结构中杯[4]芳烃衍生物钾配阳离子和多酸阴离子具有杯-簇-杯排列方式.两个钾离子以配位串的方式进入杯[4]芳烃衍生物的空腔,并与氧原子形成配位键,多阴离子簇则位于两个配阳离子中间,对发生客居的钾离子串起着约束的作用.电化学结果表明,配合物1在1.0mol/LH2SO4溶液中的氧化还原峰电流与扫速的平方根成线性关系,电极反应为扩散控制过程;配合物2和3在2.0mol/LH2SO4溶液中的氧化还原峰电流与扫速成线性关系,为表面控制过程.说明电极反应与配合物的结构密切相关.
One inorganic-organic hybrid and two host-guest complexes were synthesized from calix[ 4 ] arene tetra acetic ether derivative(C60H80O12, L) and potassium polyoxometalates. The structures of the complexes were characterized with the elemental analysis, IR, TG-DTA and X-crystallographic. X-ray crystallographic studies reveal the formation of an ionic crystal, which contains a calix-cluster and calix-chster-calix line array, and belongs to a typical inorganic-organic hybrid (complex 1 ) or has a host-guest structure (complex 2 and 3) . The results of cyclic voltammograms at different scanning rates showed that the anode peak current of complex I was proportional to the square root of the scanning rate and the charge transfer process was controlled by pervasion. The anode peak current of complexes 2 and 3 was proportional to the scanning rate and the charge transfer process was controlled by the surface. The results suggest that there are consanguineous relationship between the anode reaction and the structure.