PCP Pincer Complexes of Titanium in the +3 and +4 Oxidation States.

Organometallics

Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, 82 Wood Lane, London W12 0BZ, United Kingdom.

Published: June 2023


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Article Abstract

Ti(IV) and Ti(III) complexes using the PCP ligand have been synthesized (PCP = CH-2,6-(CHPBu)). The [PCP]Li synthon can be reacted with TiCl(THF) to form (PCP)TiCl () in limited yields due to significant reduction of the titanium synthon. The Ti(III) complex (PCP)TiCl () has been further characterized. This can have half an equivalent of halide abstracted to form [{(PCP)TiCl}{μ-Cl}][B(CF)] () and can also be methylated, forming (PCP)TiMe (). All the Ti(III) complexes have been characterized using EPR and X-ray crystallography, giving insight into their electronic structures, which are further supported by DFT calculations.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10302872PMC
http://dx.doi.org/10.1021/acs.organomet.2c00662DOI Listing

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