含硫磷配位原子的铁羰基簇合物的合成与表征  

Synthesis and Characterization of Iron Carbonyl Clusters Containing P S N Coordination Atoms

作　　者：胡其图[1] 吴秉芳[1] 刘树堂[1] 

机构地区：[1]内蒙古大学化学化工学院,内蒙古呼和浩特010021

出　　处：《内蒙古大学学报（自然科学版）》2002年第4期436-438,共3页Journal of Inner Mongolia University：Natural Science Edition

基　　金：内蒙古自治区教育厅科研基金项目 (ZD0 1 0 71 )

摘　　要：用 Fe3 (CO) 12 与含五员杂环 SPNNC的前配体 SP(Fc) (S) N(C6H5) NC(Me)反应 ,得到三种两核、三核铁羰基簇合物 ,其中两个是新物种 :Fe2 (CO) 6〔μ-η2 -P(Fc) N(C6H5) NC(Me)〕 和Fe3 (CO ) 7(μ3 -S)〔μ-η3 -P(Fc) N (C6H5) NC (Me)〕 .对它们进行了元素分析及 IR(νCO)、1HNMR和 MS谱学表征 .结果表明 ,在反应过程中 ,前配体分子中的 P=S、P-S、S-C键裂解形成的不同分子片与金属 Fe原子配位 ,重新组建成三类不同的羰基铁簇 . 的分子中含有硫、磷链 SCNNP桥基 ,S、P两原子参与配位 ; 的分子中含有 μ3 -S帽桥基和磷、碳链 PN-NC桥基 ,S、P、N。The reaction of Fe 3(CO) 12 with a five membered SPNNC containing heterocycle ligand precursor SP(Fc)(S)N(C 6H 5)NC(Me),yielded three types dinuclear and tetranuclear iron carbonyl clusters, and two of them are new compounds:〔Fe 2(CO) 6〔 μ η 2 SC(CH 3)NN(C 6H 5)P(Fc)〕 Ⅱ and Fe 3(CO) 7( μ 3 S)〔 μ η 3 P(Fc)N(C 6H 5)NC(Me)〕 Ⅲ.The clusters were characterized by elemental analysis, IR,1HNMR and Ms spectrometric method .The results show that during the reaction ,the ligand precursor has been cleaved in its P=S,P S,S C bonds and opened in its ring to give the fragments that coordinated the iron atoms to form the clusters as listed above. The cluster Ⅱ has a chain SCNNP as bridging ligand, its S and P atoms are coordinating ones and the cluster Ⅲ has a cap like bridging ligand μ 3 S and a chain PNNC bridging ligand, in which S,P,N,C four atoms are involved in coordination .

关 键 词：铁羰基簇合物 S P 配位原子 合成 表征 

分 类 号：O614.812[理学—无机化学]