FeB Double Bonds: Synthetic, Structural, and Reaction Chemistry of Cationic Terminal Borylene Complexes
Citations Over TimeTop 10% of 2004 papers
Abstract
Application of halide abstraction chemistry to asymmetric haloboryl complexes (η5-C5Me5)Fe(CO)2B(ERn)X leads to the first synthetic route to cationic multiply bonded group 13 diyl species, [(η5-C5Me5)Fe(CO)2B(ERn)]+. The roles of steric bulk and π electron release within the ERn substituent in generating tractable borylene complexes have been probed, as has the nature of the counterion. A combination of spectroscopic, structural, and computational techniques leads to the conclusion that the bonding in complexes such as [(η5-C5Me5)Fe(CO)2B(Mes)]+ is best described as an FeB double bond composed of B→Fe σ donor and Fe→B π back-bonding components. An extended study of the fundamental reactivity of cationic borylene systems reveals that this is dominated not only by nucleophilic addition at boron but also by iron-centered substitution chemistry leading to overall displacement of the borylene ligand.
Related Papers
- → Effect of substituent on the UV-Vis spectra: an extension from disubstituted to multi-substituted benzylideneanilines(2016)18 cited
- → PS II inhibitory activity of 2,4-diamino-6-chloro-s-triazines with a chiral sec-butyl and/or .ALPHA.-methylbenzyl group.(1990)15 cited
- → Diastereoselectivity of polar and radical couplings in electrophilic substitutions of rigid 2-lithio-N-methylpyrrolidines(2006)11 cited
- → Steric Effects. II. General Equations. Application to Cis- and Trans−2-Butene(1948)18 cited
- → The origin and nature of the π-electron steric effect(1977)2 cited