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ORGANOMETALLIC AMIDO NITROSYL COMPLEXES OF MOLYBDENUM AND TUNGSTEN

TitleORGANOMETALLIC AMIDO NITROSYL COMPLEXES OF MOLYBDENUM AND TUNGSTEN
Publication TypeJournal Article
Year of Publication1993
AuthorsLegzdins, P, Rettig, SJ, Ross, KJ
JournalOrganometallics
Volume12
Pagination2103-2110
Date PublishedJun
Type of ArticleArticle
ISBN Number0276-7333
KeywordsALKOXY, ARYLAMIDO, ARYLOXY, BEHAVIOR, CHEMISTRY
Abstract

{Treatment of Cp*M(NO)Cl2 (Cp* = eta5-C5Me5; M = Mo, W) with arylamines, ArNH2 (Ar = phenyl, o-tolyl, or p-tolyl) affords 18-valence-electron adducts of the type Cp*M(NO)Cl2.NH2-Ar. These adducts can be dehydrohalogenated with a strong base to produce the amido chloro complexes Cp*M(NO)(NHAr)Cl in good yields. These latter complexes can also be prepared by treatment of Cp*M(NO)Cl2 with 1 equiv of a lithium amide. Interestingly, treatment of Cp*M(NO)Cl2 with excess primary alkylamines produces directly the amido chloro complexes, Cp*M(NO)(NHR)CI(R=alkyl). Mixed alkyl amido and alkoxo amido complexes are preparable by sequential treatment of Cp*M(NO)Cl2 with 1 equiv of an alkylating reagent or lithium alkoxide followed by treatment with excess alkylamine. The solid-state molecular structures of the two representative complexes, Cp*Mo(NO)Cl2.PhNH2 (1) and Cp*W(NO)(OCMe3)-(NHCMe3) (18) have been established by single-crystal X-ray diffraction analyses. Crystals of 1 are monoclinic, space group P2(1)/c, with a = 8.590(1) angstrom

URL<Go to ISI>://A1993LG15800021