Metal-metal and metal-carbon bond energy terms for the rhodium carbonyl clusters Rh4(CO)12 and Rh6(CO)16 |
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| Affiliation: | 1. Department of Chemical and Materials Engineering, Chang Gung University, Guishan, Taoyuan 33302, Taiwan;2. Department of Nephrology, Chang Gung Memorial Hospital, Linkou, Taiwan;3. Department of Chemical Engineering and Materials Science, Yuan Ze University, Chungli, Taoyuan 32003, Taiwan;1. Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Key Laboratory of Aerospace Materials and Performance (Ministry of Education), Beijing 100191, China;2. Computational Alloy Design Group, Madrid Institute for Advanced Studies of Materials, Madrid 28906, Spain;3. School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia |
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| Abstract: | Alternative ways of obtaining metal-metal and metal-carbon bond energy terms, E(M-M) and E(M-C), from published thermochemical data for the clusters Rh4(CO)12 and Rh6(CO)16 are outlined. One gives average bond energy terms for the two clusters of E(M-M) = 86±11 and E(M-C) = 178±8 kJ.mol−1. The other, which makes allowance for the greater length, and presumably lower strength, of the metal-metal bonds of Rh6(CO)16, gives E(M-M) = 89±11 kJ.mol−1 for this cluster, 91±11 kJ.mol−1 for Rh4(CO)12, and E(M-C) = 175±8 kJ.mol−1. |
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