Transition-metal carbonyl derivatives of the germanes. Part II. Germylpentacarbonylmanganese

Abstract

Reaction of bromogermane with NaMn(CO)5 in ether or tetrahydrofuran gives germylpentacarbonylmanganese in up to 86% yield. Both GeH3Mn(CO)5 and GeD3Mn(CO)5 have been prepared and physical properties, i.r., Raman, n.m.r., and mass spectra are reported; although a molecular symmetry of only Cs is expected, the vibrational spectrum closely follows selection rules predicted assuming local C3v and C4v symmetry at Ge and Mn respectively, and an assignment is proposed on this basis.