论文部分内容阅读
标题化合物(C_(20)H_(24)O_6·AgNO_3·1/2C_4H_9OH·1/2H_2O)的晶体结构已通过X射线衍射确定。属单斜晶系,空间群为C_(2h)~5-P2_1/n,晶胞参数为:a=18.427(4)(?),b=14.079(2)(?),c=18.471(3)(?),β=93.56(3)°,V=4783(2)(?)~3,Z=8。结构通过帕特逊函数和付里叶函数求解,用块矩阵最小二乘修正,最后的偏差因子R=0.065(4908个I/σ(I)≥1.96的独立衍射)。冠醚的六个氧基本共面,并与Ag配位,Ag的第七配位为NO_3~-的O,平均Ag-O_(crown)为2.7(?),Ag-O_(NO_3~-)为2.5(?)。不对称单位中两个冠醚加合物通过一个H_2O和一个C_4H_9OH用氢键联接在一起。
The crystal structure of the title compound (C 20 H 24 O 6 AgNO 3. Is a monoclinic system with a space group of C 2h ~ 5-P2_1 / n with unit cell parameters of a = 18.427 (4) (?), B = 14.079 ) (?), β = 93.56 (3) °, V = 4783 (2) (?) ~ 3, Z = 8. The structure was solved by the Parsons’ function and the Fourier function, which was corrected by the least-squares of the block matrix. The final deviation factor was R = 0.065 (independent diffraction of 4908 I / σ ≥ 1.96). The six oxygen of the crown ether is basically coplanar and coordinated with Ag, the seventh coordination of Ag is NO3 ~ - O, the average Ag-O crown is 2.7 (?), Ag-O_ (NO_3 ~ Is 2.5 (?). Two crown ether adducts in the asymmetric unit are linked together by hydrogen bonds through a H_2O and a C_4H_9OH.