High-pressure NMR studies of [(η3-C5H5)(η5-C5H5)Cr(CO)2]. Evidence for concerted ring interchange

John M. Millar; Rodney V. Kastrup; Suzanne Harris; István T. Horváth

doi:10.1002/anie.199001941

High-pressure NMR studies of [(η³-C₅H₅)(η⁵-C₅H₅)Cr(CO)₂]. Evidence for concerted ring interchange

John M. Millar, Rodney V. Kastrup, Suzanne Harris, István T. Horváth

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

10 Citations (Scopus)

Abstract

Not CO elimination/addition with “ring slippage” but rather a concerted straightening and bending of the two C₅H₅ rings in 2 is responsible for ring interchange. The reaction was studied by high-pressure ¹H and ¹³C NMR measurements of 1/CO. The activation barrier for the ring interchange is 13.5 ± 1 kcal mol⁻¹. An analysis of the electronic situation in 2 explains this unusual behavior.

Original language	English
Pages (from-to)	194-195
Journal	Angewandte Chemie (International Edition in English)
Volume	29
Issue number	2
DOIs	https://doi.org/10.1002/anie.199001941
Publication status	Published - Feb 1990
Externally published	Yes

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abstract = "Not CO elimination/addition with “ring slippage” but rather a concerted straightening and bending of the two C5H5 rings in 2 is responsible for ring interchange. The reaction was studied by high-pressure 1H and 13C NMR measurements of 1/CO. The activation barrier for the ring interchange is 13.5 ± 1 kcal mol−1. An analysis of the electronic situation in 2 explains this unusual behavior.",

author = "Millar, {John M.} and Kastrup, {Rodney V.} and Suzanne Harris and Horv{\'a}th, {Istv{\'a}n T.}",

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AU - Kastrup, Rodney V.

AU - Harris, Suzanne

AU - Horváth, István T.

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N2 - Not CO elimination/addition with “ring slippage” but rather a concerted straightening and bending of the two C5H5 rings in 2 is responsible for ring interchange. The reaction was studied by high-pressure 1H and 13C NMR measurements of 1/CO. The activation barrier for the ring interchange is 13.5 ± 1 kcal mol−1. An analysis of the electronic situation in 2 explains this unusual behavior.

AB - Not CO elimination/addition with “ring slippage” but rather a concerted straightening and bending of the two C5H5 rings in 2 is responsible for ring interchange. The reaction was studied by high-pressure 1H and 13C NMR measurements of 1/CO. The activation barrier for the ring interchange is 13.5 ± 1 kcal mol−1. An analysis of the electronic situation in 2 explains this unusual behavior.

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M3 - RGC 21 - Publication in refereed journal

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