Molecular structure of novel polymer-like complexes of armed-azacrown ethers with alkali-metal cations
作者:Yoichi Habata、Sadatoshi Akabori
DOI:10.1039/dt9960003871
日期:——
are normal 1:1 complexes, but 2·NaSCN, 2·KSCN, 2·RbSCN and 2·CsSCN are novel polymer-like (1:1)n complexes in which the phenolic OH group in the side arm of the crown ether co-ordinates to the cation incorporated in the crown moiety of another molecule. In the complexes of 3, when Li+ is used as guest cation, the normal 1:1 complex is obtained, but Rb+ forms a polymer-like (2:2)n complex. Fourier-transform
武装氮杂皇冠醚N,N'-双(4-羟基-3,5-二甲基苄基)-1,4,10,13-四氧杂-7,16-二氮杂十八烷1,N-(4-羟基-3,5-制备了二甲基苄基)-1,4,7,10-四氧杂十三-氮杂环十二烷12和-1,4,7-三氧杂-10-氮杂环十二烷3,并合成了它们的碱金属配合物。已被确定为单晶结构1,1 ·KI·3H 2 O,1 ·KSCN·H 2 O,2 ·硫氰酸钠,2 ·KSCN,2 ·RbSCN和2 ·CsSCN,3,3 ·LiSCN的·H2 O, 3 ·LiBr·3H 2 O和3 ·RbSCN。化合物1 ·KI·3H 2 O和1 ·KSCN·H 2 O是正常的1:1配合物,而2 ·NaSCN, 2 ·KSCN, 2 ·RbSCN和2 ·CsSCN是新颖的聚合物状(1:1) n个配合物,其中冠醚侧臂中的酚羟基与并入另一个分子冠部分的阳离子配位。在3的络合物中,当Li +用作客体阳离子时,可获得正常的1:1络合物,但Rb