Molybdenum-carbon bond dissociation energies in Mo(CO) sub 6
- Univ. of California, Davis (USA)
The pressure dependence of the recombination rate constants for Mo(CO){sub n} (n = 3,4 and 5) with CO has been studied by time-resolved infrared laser absorption spectroscopy. These data, in conjunction with an RRKM model for unimolecular decay of the activated molecules (Mo(CO){sub 6})*, (Mo(CO){sub 5})*, and (Mo(CO){sub 4})*, have allowed the determination of the bond dissociation energies for several of the Mo-C bonds in Mo(CO){sub 6}. The first Mo-C bond dissociation energies for Mo(CO){sub 6}, Mo(CO){sub 5}, and Mo(CO){sub 4} are found to be DH{degree}((CO){sub 5}Mo{hor ellipsis}CO) = 35 {plus minus} 5 kcal/mol, DH{degree}((CO){sub 4}Mo{hor ellipsis}CO) = 27 {plus minus} 5 kcal/mol, and DH{degree}((CO){sub 3}Mo{hor ellipsis}CO) = 31 {plus minus} 5 kcal/mol.
- OSTI ID:
- 6518163
- Journal Information:
- Journal of Physical Chemistry; (USA), Vol. 94:10; ISSN 0022-3654
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CARBONYLS
DISSOCIATION ENERGY
CHEMICAL BONDS
DATA ANALYSIS
EXPERIMENTAL DATA
MEASURING INSTRUMENTS
MEASURING METHODS
MOLYBDENUM
PRESSURE DEPENDENCE
DATA
ELEMENTS
ENERGY
INFORMATION
METALS
NUMERICAL DATA
TRANSITION ELEMENTS
400201* - Chemical & Physicochemical Properties