Alkali metal reduction of M2(CO)10 or M(CO) 5- (M = Mn and Re) in hexamethylphosphoramide provides the first non-cluster binary metal carbonyl trianions, M(CO)4 3-, which are characterized by their spectral and chemical properties.
|Original language||English (US)|
|Number of pages||2|
|Journal||Journal of the Chemical Society, Chemical Communications|
|State||Published - 1975|
Bibliographical noteFunding Information:
A possible alternative formulation of (I) involv-ing HM(C0),2-, which should have reactivity patterns similar to those of M(CO),3-, is considered less likely inthat the lH n.m.r. spectrum of (I)in [2H18]-HMPA was shown to have no signal due to a metal hydride. The extreme air sensitivity of (I) has prevented attempts to obtain con-ductivity data on these species. We thank the University of Minnesota Graduate School and the donors of the PetIoleum Research Fund, adminis- tered by the American Chemical Society, for support, and Curtis Johnson and Steve Hentges for experimental assistance. (Received, 2nd October 1975; Corn. 1126.) J. E. Ellis and G. P. Hagen, J. Amer. Chem. SOC., 1974, 96, 7825; J. E. Ellis, S. Hentges, D. Kalina, and G. P. Hagen, J. Orguno-metallic Chem., 1975, 97, 79. a J. E. Ellis, J. Orgunometallic Chem., 1975, 86, 1. a W. F.Edgell. M. T. Yang, and N. Koizumi, J. Amer. Chem. Soc., 1965, 87, 2653.‘J. E. Ellis, R. A. Faltynek, and S. Hentges, unpublished work. C. E. Coffey, J. Lewis, and R. S. Nyholm, J. Chem. SOC., 1964, 1741. ’J. D. Cotton, S. A. R. Knox, and F. G. A. Stone, J. Chem. SOC. (A), 1968, 2758. ’R. D. George, S. A. R. Knox, and F. G. A. Stone, J.C.S. Dalton, 1973, 972. A. Davison and J. E. Ellis, J. Organometallic Chem., 1972, 36, 113.