一维链状冠醚配合物[K（18—C—6）]2[M（NO2）4]（H2O）（M=Pd,Pt）的合成与结构

One- Dimensional Chain Complexes——Syntheses and Crystal Structures of [K(18-C-6)]2[M(NO2)4](H2O)(M= Pd, Pt)

研究了18-C-6分别与K2[Pd(NO2)4],K2[Pt(NO2)4]的反应,并通过元素分析、红外光谱、单晶X射线衍射对生成的配合物[K(18-C-6)]2[Pd(NO2)4](H2O)0.5(1)和[K(18-C-6)]2[Pt(NO2)4](H2O)(2)进行了表征.两个配合物均为单斜晶系,空间群P21/c.1的晶体学数据:a=1.7104(3),b=1.4859(3),c=1.5763(3)nm,β=93.49(3)°,V=3.9987(14)nm3,Z=4,Dc=1.507g/cm3,F(000)=1880,R1=0.0681,wR2=0.1004.2的晶体学数据:a=1.1312(3)nm,b=1.4227(2)nm,c=1.2266(3)nm,β=93.141(10)°,V=1.9711(8)nm3,Z=4,Dc=1.614g/cm3,F(000)=936,R1=0.0265,wR2=0.0721.在固态,配合物1具有[K(18-C-6)]2[Pd(NO2)4](H2O)(1a)和[K(18-C-6)]2[Pds@(NO2)4](1b)两个分子,两者比例为1:1.前者相邻的两个分子通过水分子中的氧原子相连接形成一维链状结构,后者形成假一维链状结构.在配合物2中相邻的两个分子通过水分子中的氧原子相连接形成一维链状结构.

The reactions of 18 - crown - 6 with K-2[M(NO2)(4)] ( M = Pd, Pt) were studied and the complex [K(18 - C - 6)](2)Pd(NO2)(4)](H2O)(0.5)(1) and complex [K(18 - C - 6)](2) [Pt(NO2)(4)] (H2O) (2) were characterized by X-ray diffraction analysis. Two complexes belong to monoclinic, space group P2(1)/c with cell dimensions, 1: a = 1.7104(3), b = 1.4859(3), c = 1.5763(3) nm, beta = 93.49(3)degrees, V = 3.9987(14) nm(3), Z = 4, D-c = 1.507 mg/cm(3), F(000) = 1880, R-1 = 0.0681, wR(2) = 0.1004 and 2: a = 1.1312(3), b = 1.4227(2), c = 1.2266(3) nm, beta = 93.141(10)degrees, V = 1.9711(8) nm(3), Z = 4, D-c = 1.614 g/cm(3) F(000) = 936, R-1 = 0.0265, wR(2) = 0.0721. In the solid state, complex 1 contains two molecules: [K(18 - C - 6)](2). [Pd(NO2)(4)] (H2O)(1a) and [ K(18 - C - 6)](2)[Pd(NO2)(4)](1b). The former has a one-dimensional chain containing two [K(18 - C - 6)(+) complex cations and a [Pd(NO2)(4)](2-) anion bridged by one H2O molecule between the adjacent [K(18 - C - 6)(+) units. Complex 2 also has a one-dimensional chain consisting of two [K(18 - C - 6)](+) complex cations and a [Pt(NO2)(4)](2-) anion bridged by one H2O molecule between the adjacent [K(18 - C - 6)](+) units.