Enthalpy vs Entropy Driven Complexation of Homoallylic Alcohols by Rh(I) Complexes

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Issue Date
2011-10-25Author
Kang, Sung Ok
Lynch, Vincent M.
Day, Victor W.
Anslyn, Eric V.
Publisher
American Chemical Society
Type
Article
Article Version
Scholarly/refereed, author accepted manuscript
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Show full item recordAbstract
The thermodynamics of binding between several homoallylic alcohols and simple olefinic Rh(I) compounds was examined with 1H NMR spectroscopy and ITC. 1H NMR titrations revealed moderate binding of these alcohols with [Rh(COD)2]+ (1) and [Rh(COD)(CH3CN)2]+ (3), but weaker binding with [Rh(NBD)2]+ (2). ITC indicated that the complexation with [Rh(COD)2]+ is mainly governed by enthalpy whereas binding with [Rh(COD)(CH3CN)2]+ is entirely driven by entropy. The thermodynamic parameters for the homoallylic alcohol binding of Rh(I) complexes 1–3 are consistent with crystallographic data.
Description
This document is the Accepted Manuscript version of a Published Work that appeared in final form inOrganometallics, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://doi.org/10.1021/om200793p.
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Citation
Kang, S. O., Lynch, V. M., Day, V. W., & Anslyn, E. V. (2011). Enthalpy vs Entropy Driven Complexation of Homoallylic Alcohols by Rh(I) Complexes. Organometallics, 30(22), 6233–6240. http://doi.org/10.1021/om200793p
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