Syntheses, reactions, and structures of osmium(II) distannyl complexes, LnOs–SnMe2SnR3 (R=Me, Ph), from reaction between LnOs–SnClMe2 and either LiSnMe3 or KSnPh3
作者:Michael M. Möhlen、Clifton E.F. Rickard、Warren R. Roper、George R. Whittell、L. James Wright
DOI:10.1016/j.jorganchem.2006.06.010
日期:2006.9
between Os(SnClMe2)(κ2-S2CNMe2)(CO)(PPh3)2 and either LiSnMe3 or KSnPh3 produces the distannyl complexes, Os(SnMe2SnMe3)(κ2-S2CNMe2)(CO)(PPh3)2 (1) or Os(SnMe2SnPh3)(κ2-S2CNMe2)(CO)(PPh3)2 (3), respectively. Similarly, reaction between Os(SnClMe2)Cl(CO)2(PPh3)2 (6) and KSnPh3 produces the distannyl complex, Os(SnMe2SnPh3)Cl(CO)2(PPh3)2 (7). In the 119Sn NMR spectra of these stable osmium(II) distannyl
Metal-metal bonds in complexes with d-block transitionmetals are common; but those with metal–metal bonds involving both p-, d-, and f-blockmetals are extremely rare. Here, we report two examples of heterotrimetallic clusters featuring U-Ni-Ge and U-Ni-Sn units. The heterotrimetallic clusters [(CH2OCH2CH2NPiPr2)2U(µ-Ni)(GePh3)(µ-Cl)]2 (2) and [(CH2OCH2CH2NPiPr2)2U(µ-Ni)(SnPh3)(µ-Cl)]2 (3) were synthesized
d区过渡金属配合物中的金属-金属键很常见;但那些同时涉及p区、d区和f区金属的金属-金属键的情况极为罕见。在这里,我们报告了两个具有 U-Ni-Ge 和 U-Ni-Sn 单元的异质三金属簇的例子。异三金属簇 [(CH 2 OCH 2 CH 2 NP i Pr 2 ) 2 U(μ-Ni)(GePh 3 )(μ-Cl)] 2 ( 2 ) 和 [(CH 2 OCH 2 CH 2 NP i Pr 2 ))通过[( CH 2 OCH 2 CH 2 NP i Pr 2 ) 2 UCl ( μ - Ni ) ( µ-Cl)] n ( 1 ) 分别与Ph 3 SnK或Ph 3 GeLi。配合物2和3通过单晶 X 射线衍射、元素分析、UV-Vis-NIR 和 SQUID进行了全面表征。DFT 水平的理论研究表明,Ni-Ge 和 Ni-Sn 键合相互作用向 Ge 和 Sn 方向极化。在这两种情况下,键合的共价