F. P. Johnson, M. W. George, V. N. Bagratashvili, L. N. Vereshchagina, M. Poliakoff, “Steric Effects in the Kinetics of Organometallic Reactions: A Time-Resolved Infrared Study of [(η5-C5R5)Mn(CO)2] (R = H, Me or Et) in n-heptane Solution”, Mendeleev Commun., 1991, Volume 1, Issue 1,Pages 26

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Steric Effects in the Kinetics of Organometallic Reactions: A Time-Resolved Infrared Study of [(η⁵-C₅R₅)Mn(CO)₂] (R = H, Me or Et) in n-heptane Solution

F. P. Johnson^a, M. W. George^a, V. N. Bagratashvili^b, L. N. Vereshchagina^b, M. Poliakoff^c

^a University of Nottingham, UK
^b Institute of Laser and Information Technologies, Russian Academy of Sciences, Troitsk, Moscow Region, Russian Federation
^c Department of Chemistry, University of Nottingham, Nottingham, UK

Abstract: Fast time-resolved IR spectroscopy (microsecond timescale) is used to record the spectra and kinetics of photochemical reactions of [(η⁵-C₅R₅)Mn(CO)₃] (R = H, Me or Et) in n-heptane solution; second-order rate constants for reaction with H₂, N₂ and CO are ca. six times faster for [(C₅Et₅)Mn(CO)₂(n-hept)] than for [(C₅H₅)Mn(CO)₂(n-hept)] while the rate constants for the reaction of all three [(C₅R₅)Mn(CO)₂(n-hept)] intermediates with PPh₃ are almost identical.

Language: English

DOI: 10.1070/MC1991v001n01ABEH000016