The influence of phosphine cone angle on the synthesis and structures of [Rh(PR3)(Binor-S)]+ complexes that show C-C sigma interactions

Journal article

Complexes that show C-C···Rh sigma interactions have been synthesized and characterised by NMR spectroscopy and X-ray diffraction: [Rh(PR3)(Binor-S)][BArF4], R = P tBu2Me, PCy2Ph; Ar = C6H 3(CF3)2, Binor-S = 1,2,4,5,6,8-dimetheno-S- indacene. These studies, in concert with previously published work, show that there is a rather narrow window of phosphine steric profile that supports the isolation of these interesting complexes, with the phosphine cone angle lying between 160° and 170°. © 2013 Elsevier B.V. All rights reserved.

Authors: Chaplin, AB; Weller, A

• Journal: Journal of Organometallic Chemistry
• Volume: 730
• Pages: 90-94
• Publication date: 2013-04-15
• DOI: 10.1016/j.jorganchem.2012.09.013
• ISSN: 0022-328X
• Language: English
• Keywords: Agostic; Sigma complex; C-C activation; Rhodium