Document Type
Article
Language
eng
Publication Date
5-2000
Publisher
Elsevier
Source Publication
Coordination Chemistry Reviews
Source ISSN
0010-8545
Abstract
X-ray crystallographic structures of donor–acceptor complexes of aromatic hydrocarbons with transition metals are re-examined with the focus on the arene ligands. Thus, significant structural and electronic changes are revealed in the arene moiety due to coordination to the metal center including: (i) expansion of the aromatic six-carbon ring; (ii) endocyclic π-bond localization; (iii) distortion of the planarity (folding) of the arene ring; and (iv) shortening of the metal-arene bond distances. All structural features are characteristic of metal–arene (π- or σ-) complexes that exhibit various degrees of (metal-to-ligand) charge transfer. The concept of charge-transfer bonding not only explains the structural details but also the various facets of chemical reactivity of metal-coordinated arenes including efficient carbon-hydrogen bond activation and nucleophilic–electrophilic umpolung, both of which are critical factors in homogeneous metal catalysis.
Recommended Citation
Hubig, S. M.; Lindeman, Sergey V.; and Kochi, Jay K., "Charge-Transfer Bonding in Metal–Arene Coordination" (2000). Chemistry Faculty Research and Publications. 691.
https://epublications.marquette.edu/chem_fac/691
Comments
Accepted version. Coordination Chemistry Reviews, Vol. 200-202 (May 2000): 831-873. DOI. © 2018 Elsevier B.V. Used with permission.
Sergey V. Lindeman was affiliated with the University of Houston at the time of publication.