The Vibrational and Electronic Spectrum, and the Potential Field of Various Manganese Carbonyl Complexes

Author: Ottesen, David Keith

Year: 1971

Degree: Dissertation (Ph.D.)

Advisor: Gray, Harry B.

Committee Member: Unknown, Unknown

Option: Chemistry

DOI: 10.7907/xbxd-q624

Abstract

I. The infra-red and Raman spectra of Mn(CO)5Br as both solid and CH2Cl2 solution from 50 to 2150 cm-1 are presented for the normal isotopic compound, and the 13CO and C18O substituted molecules. The observed bands are assigned, and the force constants and compliance constants of a general quadratic potential field are calculated using the FG method of Wilson, Decius, and Cross.

II. The infra-red and Raman spectra of both Mn2(12CO)10 and Mn2(13CO)10 as solids and in CH2Cl2 solutions from 50 to 2150 cm-1 are presented and are assigned. Potential constants are calculated using values transferred from the Mn(CO)5Br calculations. Special attention is paid to splitting interactions across the Mn--Mn bond and to the Mn--Mn stretching potential constants.

III. Raman intensities and the electronic absorption spectrum of M(CO)5Xn- compounds are presented and discussed.

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