involving an N3O in-plane donor set, with the oxygen atom of the zwitterionic form of the oxime group, the nitrogen atom of the classical form of the oxime group and two nitrogen atoms of the pyrazole heterocycle; the axial ligand is a chloride ion. The two water molecules are linked by hydrogen bonds to the oxime function. In 1 the bonding is O–H ⋯ OH2(classical structure), in 2 it is N–H ⋯ OH2(zwitterionic
1,1'-(
4-甲基吡唑-3,5-二基)二
乙醛二
肟(H 3 L)与CuCl 2 ·2H 2 O的反应根据温度产生两种不同的异构二核配位化合物。分析结果表明相同的组成物[Cu 2(H 2 L)2
氯2 ]·2H 2 O.一种异构体(1)的单斜晶空间群中在15℃下结晶,P 2 1 /一个与一个= 11.490(5) ,b = 16.287(14),c = 6.253(4)Å,β= 97.78(4)°和Z= 2.对I >3σ(I)的1983年反射进行细化,得出最终R = 0.025(R '= 0.027)。在三斜晶系中,第二种异构体(2)在25°C下结晶,空间群P,a = 8.520(15),b = 8.607(18),c = 8.671(14),α= 75.27(15),β= 69.96(17),γ= 76.66(15)°,Z = 1;对于2964次重大反射,R = 0.027(R '= 0.0