【摘要】 报道了一个氰根桥连的 4 f 3d一维链状配合物 [Nd(DMF) 4 (H2 O) 2 Cr(CN) 6 ]·H2 O。它是由NdBr3·6H2 O ,H2 salen和 (Bu4 N) 3[Cr(CN) 6 ](摩尔比为 1∶1∶1)在甲醇 DMF混合溶剂中自组装得到。由X 射线单晶衍射结构分析得知其属于单斜晶系 ,空间群为P2 1/c ,晶体数据a =13 2 0 0 (3) ,b =12 .996 (3) ,c=19.2 11(4) ,β =10 9.93(3)°,V =30 98.4 (11) 3,Z =4 ,S =1.0 12 ,R1=0 .0 386 ,wR =0 .0 751。在配合物中 ,每个Nd离子以顺式方式连接 2个Cr离子 ,而每个Cr离子同样以顺式方式连接 2个Nd离子 ,得到一个新颖的类长城链状结构。配位和晶格水分子通过氢键将相邻的NdCr一维链连成三维网状结构更多还原

【Abstract】 A bimetallic complex {\[Nd(DMF)\-4(H\-2O)\-2Cr(CN)\-6\]·H\-2O} n is reported.It was synthesized as yellow crystals by self\|assembly of NdBr\-3·6H\-2O,H\-2 salen and (Bu\-4N)\-3\[Cr(CN)\-6\] (molar ratio of 1∶1∶1) in methanol\|DMF mixed solution.Single\|crystal X\|ray diffraction analysis shows that it consists of a cyano\|bridged chain structure.The Nd atom is eight\|coordinate with a distorted square antiprism geometry.Each Cr(CN)\-6 coordinates to two Nd(Ⅲ) ions using two cis cyanide ligands,while each Nd(DMF)\-4(H\-2O)\-2 group connects two Cr(CN)\-6 moieties in a cis fashion,giving rise to an unprecedented chain structure.Crystal data:monoclinic,space group P2 1/ c , a =13.200(3), b =12.996(3), c =19.211(4)?, β =109.93(3)°, V =3?098.4(11)?\+3,\%Z\%=4,\%S\%=1.012, R 1=0.038?6, wR =0.0751.更多还原