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Lookup NU author(s): Emeritus Professor Bill CleggORCiD, Dr Mark Elsegood
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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.
Author(s): Chew KC, Clegg W, Coles MP, Elsegood MRJ, Gibson VC, White AJP, Williams DJ
Publication type: Article
Publication status: Published
Journal: Journal of the Chemical Society - Dalton Transactions
Year: 1999
Issue: 15
Pages: 2633-2639
Print publication date: 07/08/1999
ISSN (print): 1472-7773
ISSN (electronic): 1364-5447
Publisher: Royal Society of Chemistry
URL: http://dx.doi.org/10.1039/a901790i
DOI: 10.1039/a901790i
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