Para-Functionalised Molybdenum Aryl–Imido Complexes [Mo(NAr)(S 2CNEt 2) 2Cl 2] and Diimido Complexes [{Mo(S 2CNEt 2) 2Cl 2} 2( μ-1,5-NC 10H 6N)] and [{Mo(S 2)(S 2CNEt 2) 2} 2 (μ- p-NC 6H 4N)]

• Published in: Polyhedron Vol. 18; no. 8; pp. 1221 - 1227
• Main Authors: Hogarth, Graeme, Norman, Tim, Redmond, Simon P
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-01-1999
• ISSN: 0277-5387
• DOI: 10.1016/S0277-5387(98)00419-7

A range of
para-substituted aryl–imido complexes [Mo(NAr)(S
2CNEt
2)
2Cl
2] has been prepared upon reaction of [MoO(S
2CNEt
2)
2Cl
2] with substituted anilines. With diamines similar mononuclear complexes result containing a pendant amino group which is deactivated towards further addition of molybdenum. This is attributed to the significant reduction in basicity of the remaining amine functionality upon coordination of the first to the electron-deficient molybdenum(VI) centre, and suggests that the two centres communicate strongly via the π-conjugated organic linking group. Diimido-bridged [{Mo(S
2CNEt
2)Cl
2}
2(μ-1,5-NC
10H
6N)] was isolated from the reaction with naphthalene-1,5-diamine, while reaction of [MoO
2(S
2CNEt
2)
2] with
para-phenylene diisocyanate afforded [{Mo(S
2)(S
2CNEt
2)
2}
2(μ-
p-NC
6H
4N)].