Calculating the CO-factored force constants of tricarbonyl complexes with C-s symmetry
Abstract
The maximum value of the sum of the interaction constants is used as an additional constraint to solve the CO-factored force fields of tricarbonyl complexes with C-s symmetry. The solution obtained led to the equations by which carbonyl stretching force constants and CO-CO interaction constants can be calculated directly from C-O stretching frequencies of the all-(CO)-C-12-O-16 molecule. The CO-factored force constants and the C-O stretching frequencies of (CO)-C-13-O-16-substituted species were calculated for Fe(CO)(3)(-) and Fe(C4H6)(CO)(3). The results obtained were found to be very close agreement with those obtained from isotopic enrichment studies. (C) 2010 Elsevier B. V. All rights reserved.
Source
JOURNAL OF ORGANOMETALLIC CHEMISTRYVolume
695Issue
19-20Collections
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