Calculation of CO stretching force and interaction constants for the MCo(CO)9 (M = Mn, Tc or Re) triad

摘要: Abstract The infrared spectra and complete assignment, on the basis of free rotational model, in CO stretching region, bimetallic carbonyls MCo(CO) 9 (M = Mn, Tc or Re), are reported. inactive B 1 fundamental was calculated from isotopic satellites for all compounds. Force interaction constants have been a factored force field by parametric method applied presence species fourth order. It is noteworthy that, as previously found M 2 (CO) 10 analysis K eq ax values technetium-containing compound highest triad. results point to considerable polarization metal-metal bond sense 5 +δ  Co −δ 4 ,and this technetium-, lowest manganese-containing compound.