Supramolecular Polymers and Chiral Phosphine Oxides by Oxidation of Gold(I) Complexes
Journal of Inorganic and Organometallic Polymers and Materials(2017)
Abstract
The chiral diphosphine ligand R,R-cyclo -C 6 H 10 - trans -1,2-{NHC(=O)C 6 H 4 -2-PPh 2 } 2 , 1 , forms complexes with gold(I) of formula [Au( 1 )]Cl, 2 , and [(ClAu) 2 (µ- 1 )], 3 , in which the diphosphine acts as a trans -chelate and bridging ligand, respectively. Oxidation of these gold(I) complexes leads to dissociation and oxidation of the diphosphine ligand to form the corresponding diphosphine dioxide R,R-cyclo -C 6 H 10 -1,2-{NHC(=O)C 6 H 4 -2-P(=O)Ph 2 } 2 , which has been crystallized in its protonated form and as complexes with Na + and Fe 2+ , with [AuBr 2 ] − or [AuBr 4 ] − anions. Some of these compounds form supramolecular polymers by intermolecular hydrogen bonding.
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Key words
Gold,Bis(phosphine oxide),Diphosphine,Supramolecular,Polymer
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