Stereoelectronic effects on arene rotation: the structure and fluxionality of [1,4-C6H4(SiMe3)2]Cr(CO)2PPh3 and [1,3,5-C6H3tBu3)Cr(CO)2PPh3
Autor: | Claire J. Beddows, Hugo E. Gottlieb, Desmond Cunningham, Patrick McArdle, Paul C. Yates, Paula J. O'Leary, James A. S. Howell |
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Rok vydání: | 1997 |
Předmět: | |
Zdroj: | Journal of Organometallic Chemistry. 527:21-27 |
ISSN: | 0022-328X |
DOI: | 10.1016/s0022-328x(96)06537-0 |
Popis: | Barriers to metal-arene ring rotation in [1,4-C6H4(SiMe3)2)Cr(CO)2PPh3 and (1,3,5-C6H3tBu2)Cr(CO)2PPh3 are lowered relative to a previously reported barrier of 32 J mol−1 for (1,4-C6H4tBu2)Cr(CO)2PPh3. Reasons for the decreased barriers are discussed in the light of crystal structure determinations of these complexes. |
Databáze: | OpenAIRE |
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