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Halide and substituent dependent structural variation in copper(I) halide complexes of 1,5,9-triphosphacyclododecanes

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Abstract

The reactions of 1,5,9-triethyl-1,5,9-triphosphacyclododecane, [12]-ane-P3Et3, and 1,5,9-tri(2-propyl)-1,5,9-triphosphacyclododecane, [12]-ane-P3iPr3 with copper(I)halides produce either bimetallic species of the type [([12]-ane-P3R3)Cu(CuX2)] (X = halide) or monomeric [([12]-ane-P3R3)CuX] depending on the nature of the halide and, to a lesser extent, the macrocycle. With CuCl only bimetallic complexes are formed with one copper centre bound to the macrocycle and a second attached through a Cu–Cu bond with a mono bridging chloride. CuBr affords monomeric [([12]-ane-P3R3)CuBr] complexes when performed in a 1 : 1 M : L ratio whereas the bimetallic compound [([12]-ane-P3Et3)(CuBr)2], resulted when a 2 : 1 ratio of M : L was employed. With CuI in all ratios only monomeric complexes were obtained. The synthesised complexes have been fully characterised by spectroscopic and analytical techniques and by determination of the molecular structures by single-crystal X-ray diffractometry.

Graphical abstract: Halide and substituent dependent structural variation in copper(i) halide complexes of 1,5,9-triphosphacyclododecanes

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Publication details

The article was received on 30 Jul 2018, accepted on 24 Oct 2018 and first published on 25 Oct 2018


Article type: Paper
DOI: 10.1039/C8DT03072C
Citation: Dalton Trans., 2018, Advance Article
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    Halide and substituent dependent structural variation in copper(I) halide complexes of 1,5,9-triphosphacyclododecanes

    L. V. Wickramatunga, T. K. Pothupitiya, E. Chevalier, B. M. Kariuki, S. S. Liyanage, P. D. Newman and P. G. Edwards, Dalton Trans., 2018, Advance Article , DOI: 10.1039/C8DT03072C

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