Synthesis and structure of a series of new haloaryl imido complexes of molybdenum
摘要:
The synthesis of a series of mono- and bis-haloarylimido molybdenum(VI) complexes is described. Two methods of introducing the electron poor imido functionality are employed, first the condensation of substituted anilines with Na2MoO4 in the presence of Me3SiCl/NEt3, secondly the sulfinyl amine metathesis with [Mo(O)(2)Cl-2(dme)] (1). The latter method works even in cases, when the first one does not work. Crystal structures of three complexes [Mo(NC6F5)(O)Cl-2(dme)] (2a), [Mo(N-2,6-Cl2C6H3)(2)Cl-2(dme)] (3b) and[Mo(N-2,4,6-Br3C6H2)(2)Cl-2(dme)] (4) are reported. The unusually small Mo-N-C(Ar) angle of 149.1(5)degrees has been found in the structure of 4. (C) 2001 Elsevier Science B.V. All rights reserved.
Clusters containing metal–metal bonds linking high- and low-valent metal centres: synthesis and structure of Ru3(CO)12{Mo(NAr)2}
作者:Shahbano Ali、Antony J. Deeming、Graeme Hogarth、Arthur J. Carty、Gary D. Enright
DOI:10.1039/a908982i
日期:——
Room temperature reaction of K2[Ru3(CO)11] with the molybdenum(VI) bis(imido) complexesMo(NAr)2Cl2(dme) (Ar = C6H3X2-2,6; X = Me, Pri, Cl; dme = 1,2-dimethoxyethane) affords new high-low valent clusters Ru3(CO)12Mo(NAr)2} which adopt a butterfly arrangement of metal centres with [Ru3(CO)12]2 acting as a ligand at a molybdenum(VI) centre.
K2[Ru3(CO)11] 与钼 (VI) bis(imido) 配合物 Mo(NAr)2Cl2(dme) 的室温反应 (Ar = C6H3X2-2,6; X = Me, Pri, Cl; dme = 1,2-二甲氧基乙烷)提供了新的高低价团簇 Ru3(CO)12Mo(NAr)2},它采用金属中心的蝴蝶排列,[Ru3(CO)12]2 作为钼的配体(六)中心。