Issue 6, 2002
From the journal:

Journal of the Chemical Society, Dalton Transactions

Synthesis and reactions of the cyclooctadienylmolybdenum complexes [MoBr(CO)2(NCMe)2(η3-C8H11)] (η3-C8H11 = 1–3-η:4,5-C8H11 or 1–3-η:5,6-C8H11)

Dale M. Spencer,a   Roy L. Beddoes,a   Rasika K. Dissanayake,a   Madeleine Helliwella  and  Mark W. Whiteley*a  

* Corresponding authors

a Department of Chemistry, University of Manchester, Manchester, UK

Abstract

The first examples of cyclooctadienylmolybdenum complexes, [MoBr(CO)2(NCMe)2(1–3-η:5,6-C8H11)] and [MoBr(CO)2(NCMe)2(1–3-η:4,5-C8H11)], accessible by reaction of [Mo(CO)3(NCMe)3] with bromocyclooctadienes, are precursors to [MoBr(CO)2(L2)(η3-C8H11)] [L2 = 2,2′-bipyridine; Ph2P(CH2)nPPh2 (n = 1 or 2); 2CNBut]; [Mo(CO)2(η3-C8H11)Cp], and [Mo(CO)2(L3)(η3-C8H11)]+ (L3 = NCMe or CNBut). The X-ray crystal structures of [MoBr(CO)2(L2)(1–3-η:5,6-C8H11)] (L2 = 2,2′-bipyridine or Ph2PCH2CH2PPh2) and [Mo(CO)2(CNBut)3(1–3-η:4,5-C8H11)][BF4] have been determined and the solid state conformations of the two types of trihapto-bonded cyclooctadienyl ring investigated. The characteristic 1H and 13C{1H} NMR spectral features of the 1–3-η:5,6-C8H11 and 1–3-η:4,5-C8H11 ligands are defined.

Graphical abstract: Synthesis and reactions of the cyclooctadienylmolybdenum complexes [MoBr(CO)2(NCMe)2(η3-C8H11)] (η3-C8H11 = 1–3-η:4,5-C8H11 or 1–3-η:5,6-C8H11)

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Article information

DOI
https://doi.org/10.1039/B107581K
Article type
Paper
Submitted
21 Aug 2001
Accepted
17 Dec 2001
First published
13 Feb 2002

J. Chem. Soc., Dalton Trans., 2002, 1009-1019

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Synthesis and reactions of the cyclooctadienylmolybdenum complexes [MoBr(CO)2(NCMe)2(η3-C8H11)] (η3-C8H11 = 1–3-η:4,5-C8H11 or 1–3-η:5,6-C8H11)

D. M. Spencer, R. L. Beddoes, R. K. Dissanayake, M. Helliwell and M. W. Whiteley, J. Chem. Soc., Dalton Trans., 2002, 1009 DOI: 10.1039/B107581K

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