The structural and electrochemical consequences of hydrogenating copper N2S2 Schiff base macrocycles |
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| Authors: | Katherine D. Trotter John C. Forgie Leonard E.A. Berlouis Corinne M. Spickett |
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| Affiliation: | a Department of Pure and Applied Chemistry, 295 Cathedral St., Strathclyde University, Glasgow G1, 1XL, United Kingdom
b Strathclyde Institute of Pharmacy and Biomedical Sciences, 27 Taylor Street, Strathclyde University, Glasgow G4 0NR, United Kingdom |
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| Abstract: | A series of cis and trans tetradentate copper macrocyclic complexes, of ring size 14-16, that employ amine and thioether donor groups are reported. Apart from 5,6,15,16-bisbenzo-8,13-diaza-1,4-dithia-cyclohexadecane copper(I) (cis-[Cu(H4NbuSen)]+) all of the complexes are obtained in the copper(II) form. Crystallographic analysis shows that the copper(II) complexes all adopt a distorted planar geometry around the copper. In contrast, cis-[Cu(H4NbuSen)]+ is found to adopt a distorted tetrahedral geometry. The complexes were subjected to electrochemical analysis in water and acetonitrile. The effect of the solvent, positions of the donor atoms (cis/trans) on E1/2 is discussed as is the comparison of the electrochemical behaviour of these complexes with their parent Schiff base macrocycles. |
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| Keywords: | Macrocycle Copper Redox potential Geometry Donor groups |
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