[M(dap)3]2(Sb2Se5)·xH2O(M=Ni，X=2；M=Zn，X=0)的溶剂热合成及晶体结构

Solvothermal synthesis and crystal structure of [M(dap)_3]_2(Sb_2Se_5)·xH_2O(M=Ni,x=2;M=Zn,x=0)

利用溶剂热法合成了2种新的有机杂化锑硒化合物[Ni(dap)3]2(Sb2Se5)].2H2O(1)和[Zn(dap)3]2(Sb2Se5)](2)(dap=1,2-丙二胺),单晶X射线衍射分析结果表明,1属于三方晶系,P3121空间群,晶胞参数为a=10.7574(14),b=10.7574(14),c=31.672(4),γ=120.00°,z=4。2属于单斜晶系,P21空间群,晶胞参数为a=10.772(2),b=16.391(3),c=11.704(2),β=100.912(4)°,z=4。在2种化合物中,Ni2+与Zn2+离子分别与3个dap配体螯合形成畸变八面体几何构型,其中dap配体的N原子是无序的,而二聚[Sb2Se5]2-阴离子是由2个SbSe3三角锥共用1个Se原子连接而成。

Two new selenidoantimonate [ Ni （dap） 3 ] 2 （ Sb2 Se5 ） ] · 2H2 O （ 1 ） and [ Zn （ dap ） 3 ] 2 （ Sb2 Se5 ） （ 2 ） （ dap = 1,2- diaminopropane） have been synthesized under mild solvothermal conditions and characterized by elemental analysis and IR spectrum. The crystal structures of the compounds 1 and 2 have been determined by single crystal X-ray diffraction techniques. The crystal ofl belongs to trigonal space group P3121 with the unit cell parameters： a = 10.7574（14）, b = 10.7574（14） , c = 31. 672（4）A, γ = 120. 00°, Z = 4; The crystal of 2 belongs to monoclinic space group P21 with the unit cell parameters： a = 10.772（2）, b = 16.391（3）, c = 11.704（2）A, β= 100.912（4）°, Z = 4. Compounds 1 and2 consist of discrete Sb2Se5^4- anion formed by two comer-sharing SbSe3 trigonal pyramids with distorted-octahedron [ M （dap）3 ]^ 2 ＋ cations as counterions. All N atoms of dap ligands in compounds 1 and 2 are disordered.