Clegg, William, Chew, Kong Chin, Coles, Martyn P, Elsegood, Mark R J, Gibson, Vernon C, White, Andrew J P and Williams, David J (1999) Synthesis and Characterisation of 2,6-Diisopropylphenylimido Complexes of Chromium in Oxidation States IV - VI. Journal of the Chemical Society, Dalton Transactions, - (15). 2633 - 2639. ISSN 0300-9246

Full text not available from this repository.

Abstract

The chromium(VI) imido complex Cr(NAr)2Cl2 (Ar = 2,6-iPr2C6H3) reacted with pyridine and PMe3 to form the monoadducts Cr(NAr)2Cl2(py) 1 and Cr(NAr)2Cl2(PMe3) 2 respectively. The reaction between Cr(NAr)2Cl2 and LiNHAr afforded the amide complex Cr(NAr)2(NHAr)Cl 3. Attempts to generate the half-sandwich species CrCp(NAr)2Cl through treatment of the dichloride with LiCp, Mg(Cp)2 or NaCp resulted in the dimeric chromium(V) complex [Cr(NAr)(µ-NAr)Cl]2 4. Reduction of Cr(NAr)2Cl2 with magnesium in the presence of PMe3 or PMe2Ph afforded the chromium(IV) bis-phosphine complexes Cr(NAr)2(PMe3)2 5 and Cr(NAr)2(PMe2Ph)2 6 respectively. The reaction between Cr(NAr)2(PMe3)2 and phenyldiazomethane gave the diazoalkane complex Cr(NAr)2(N2CHPh)(PMe3) 7. Complexes 1, 3, 4 and 7 have been structurally characterised.

Item Type:	Article
Additional Information:	PhD work
Schools and Departments:	School of Life Sciences > Chemistry
Depositing User:	Martyn Coles
Date Deposited:	06 Feb 2012 19:47
Last Modified:	30 Nov 2012 17:04
URI:	http://sro.sussex.ac.uk/id/eprint/22175

📧 Request an update