一个新型氰根桥联铁(Ⅲ)-铜(Ⅱ)大环配位聚合物的合成和晶体结构

Synthesis and crystal structure of a new cyanide-bridged coordination polymer with macrocyclic ligand

合成了新型大环配位聚合物 [Cu(L) ]2 [Fe2 (H2 O) (CN) 10 ]·8H2 O(L =1,8-二正丙基- 1,3,6 ,8,10 ,13-六氮杂 - 14-冠 - 4 ) ,用元素分析、ICP分析、IR光谱对配合物进行了表征 ,X -射线衍射测定了其单晶结构 .结果表明 ,该晶体属正交晶系 ,Pddd空间群 ,a =1.8310 (4)nm ,b =2 .6 0 6 0 (5)nm ,c =3.16 80 (6 )nm ,α =β =γ =90° ,V =15.116 (5)nm3,Z =8,dc=1.0 85g/cm3,F(0 0 0 ) =52 0 0 ,R1=0 .10 2 4 ,WR2 =0 .2 6 57,GOF(F2 ) =0 .992 .该配合物结构中氰根桥联铁 (Ⅲ )和铜 (Ⅱ ) ,形成Fe -CN -Cu -NC -Fe一维链 ,链与链之间经由Fe-O(H2 O) -Fe而相互联结 ,形成相互交叉的网状结构 .铁和铜均形成 6配位畸变 8面体构型 .

Cyanide-bridged bimetallic coordination polymer [Cu(L)] 2[Fe 2(H 2O)(CN) 10 ]·8H 2O(L=1,8-Dipropyl-1,3,6,8,10,13-hexaazacyclotetradecane) was synthesized and structurally characterized. The coordination polymer crystallizes in the orthorhombic system of the space group Fddd with a=183.10(4)nm, b=260.60(5)nm, c=316.80(6)nm , α=β=γ=90°, V=15116(5) 3 , z=8, dc=1.085 g/cm 3, F(000)=5200, R 1=0.1024, W R 2 =0.2657, GOF(F 2)= 0.992. The one-dimensional chain extends through Fe-CN-Cu-NC-Fe linkages. The adjacent two polymer chains are linked by the Fe-O-Fe bond to form a two-dimensional extended structure.