设计并合成了两个五员瓜环(Q[5])桥联K+和Na+形成的新型配合物[K(H2O)2Na(H2O)Q[5]](ClO4)2·6H2O(1),[KNaH(H2O)4Q[5]]n(ClO4)3n·3nH2O(2).利用单晶X射线衍射进行结构测定,结果表明,配合物1中Q[5]起着一个双五齿配体的作用,每个端口的5个羰基氧原子分别和钾离子和钠离子配位,形成分子胶囊;配合物2中每个钾离子分别通过与相邻的2个Q[5]端口的相邻一对羰基氧原子配位,使得配合物形成一维链状结构,同时Q[5]还提供1个羰基氧原子与Na+配位,氢键使得配合物形成三维超分子结构.
Two new complexes based on cucurbit[51 uril and bridged K + and Na + [K( H2O)2 Na( H2O)Q[5] 1 (C1Q)2.6H2O (1), [KNaH(H2O)4Q[5]],,(C104)3,,.3nH2O (2), where Q[5] represents cucurbit[5]uril, have been synthesized and characterized by X-ray diffraction. The crystal structure shows that two portals of Q [ 5]were lidded by Na + and K + respectively in complex 1, where Q [5 ] acts as a bi-fivedentate ligand. In complex 2, K + and Q [ 5] form columnar one-dimensional coordination polymers, in which Q [ 5 ] molecules stack atop one another through coordination of their two neighboring carbonyl groups to K + in between. Q [ 5 ] also contribute one carbonyl oxygen to coordinate with Na+. The complex assembled into a three-dimensional supramolecular structure through hydrogen bonds.