论文部分内容阅读
以二氰胺钠[Na(dca)]和异烟酰胺(L)为共配体分别与铜盐和镉盐反应合成了2种新的配合物:一维的[Cu(L)2(dca)2]·2MeOH(1)和二维的[Cd(L)2(dca)2](2)。通过元素分析和红外光谱进行了表征。X射线晶体结构分析表明配合物1属于三斜晶系,P1空间群,a=0.68007(6)nm,b=0.73759(6)nm,c=1.15405(10)nm,α=99.9550(10)°,β=90.3070(10)°,γ=103.2940(10)°,V=0.55428(8)nm3,Z=2。2属于单斜晶系,P21/c空间群,a=1.04377(7)nm,b=0.95630(6)nm,c=1.05593(7)nm,β=119.3330(10)°,V=0.91885(10)nm3,Z=4.1是一个中性的配位链,CuⅡ之间通过双μ1,5-dca桥而连接,L是单齿配位的。这些配位链通过链间的N-H…N氢键作用扩展为二维的层,甲醇分子位于层间,甲醇分子与酰胺基团之间的N-H…O,O-H…O氢键作用进一步将二维的层拓展为三维的网络。在2中,每个镉离子通过μ1,5-dca连接相邻的4个镉离子,从而形成了二维的(4,4)网,层与层之间通过酰胺基团之间的氢键作用扩展为三维的网络。
Two new complexes were synthesized by the reaction of sodium dicyanamide [Na (dca)] and isonicotinamide (L) with copper and cadmium salts, respectively. One-dimensional [Cu ) 2] .2MeOH (1) and two-dimensional [Cd (L) 2 (dca) 2] (2). Characterization by elemental analysis and infrared spectroscopy. X-ray crystal structure analysis showed that the complex 1 belongs to the triclinic system, a = 0.68007 (6) nm, b = 0.73759 (6) nm, c = 1.15405 (10) nm and α = 99.9550 , β = 90.3070 (10) °, γ = 103.2940 (10) °, V = 0.55428 (8) nm3, Z = 2.2 belongs to the monoclinic space group P21 / c with a = 1.04377 (7) b = 0.95630 (6) nm, c = 1.05593 (7) nm, β = 119.3330 (10) °, V = 0.91885 (10) nm3 and Z = 4.1 is a neutral coordination chain. , 5-dca bridge and connected, L is monodentate coordination. These coordination chains are extended to a two-dimensional layer by the NH ... N hydrogen bonding between the chains, the methanol molecules are located between the layers, the NH ... O, OH ... O hydrogen bonds between the methanol molecules and the amide groups further function as two- dimensional The layer is expanded to a three-dimensional network. In 2, each cadmium ion connects adjacent 4 cadmium ions through μ1,5-dca, thus forming a two-dimensional (4,4) net, the hydrogen bonds between the amide groups The role of extended to three-dimensional network.