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Aspects of the coordination chemistry of rac-trans-1,2-diphosphinocyclohexane and the preparation of reinforced 9aneP3and 9anePN2macrocycles

Edwards, Peter Gerald, Kariuki, Benson, Newman, Paul David, Tallis, Huw A. and Williams, Craig 2014. Aspects of the coordination chemistry of rac-trans-1,2-diphosphinocyclohexane and the preparation of reinforced 9aneP3and 9anePN2macrocycles. Dalton Transactions 43 (41) , pp. 15532-15545. 10.1039/C4DT02239D

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Abstract

Racemic trans-1,2-diphosphinocyclohexane (t-chxnP2) has been synthesised and its coordination chemistry to Cu(I), Ag(I), Mn(I) and Fe(II) investigated. Compounds of empirical formula [Cu(t-chxnP2)2]BF4 and [Ag(t-chxnP2)2]BF4 have been prepared as isomeric mixtures and the solid-state structure of both complexes determined by single-crystal techniques. The Cu(I) complex is a monomeric species which crystallises with one ligand bearing the R,R configuration and the other being the S,S isomer whereas the Ag(I) complex crystallises as a polymer containing both chelating and bridging t-chxnP2 ligands with 3- and 4-coordinate Ag(I) centres and argentophilic bonds. The bidentate diprimary phosphine has been coordinated to Mn(I) and Fe(II) templates and used as a P2 unit for the formation of chiral (albeit racemic) 1,4,7-triphosphamacrocycles (9aneP3). In addition 1R,2R- and 1R,2S-diaminocyclohexane (chxn) have been coordinated to Mn(I) and Fe(II) templates and similarly employed for the formation of new 1,4-diamino-7-phosphamacrocycle (9anePN2) complexes.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Chemistry
Subjects: Q Science > QD Chemistry
Publisher: Royal Society of Chemistry
ISSN: 1477-9226
Date of Acceptance: 22 August 2014
Last Modified: 18 Feb 2019 14:28
URI: http://orca-mwe.cf.ac.uk/id/eprint/64507

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