Highly Reduced Organometallic Anions. 1. Syntheses and Properties of Tetracarbonylmetalate(3—) Anions of Manganese and Rhenium

John E. Ellis, Robert A. Faltynek

Research output: Contribution to journalArticle

52 Scopus citations

Abstract

Reductions of M(CO)5- and M2(CO)10 (M = Mn and Re) in hexamethylphosphoramide with sodium metal provide high yields of the “super-reduced” species M(CO)43-, which contain manganese and rhenium in their lowest known oxidation states. Infrared and chemical evidence is presented to corroborate proposed formulations for these salts. Their reactions with electrophilic species including Ph3ECl (E = Ge, Sn, Pb), Me3ECl (E = Ge, Sn), Ph3PAuCl, and benzyl chloride, provide a unique route to new organometallic derivatives of stoichiometry (R3E)2M(CO)4-, (Ph3PAu)2M(CO)4, and (C6,H5CH2-CO)2Mn(CO)4-. Physical properties of the anionic derivatives are discussed and compared to those of analogous neutral compounds of iron, ruthenium, and osmium.

Original languageEnglish (US)
Pages (from-to)1801-1808
Number of pages8
JournalJournal of the American Chemical Society
Volume99
Issue number6
DOIs
StatePublished - Jan 1 1977

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