Nanda, Kausik K. ; Mohanta, Sasankasekhar ; Florke, Ulrich ; Dutta, Sujit K. ; Nag , Kamalaksha (1995) Macrocyclic CuII4 and CuII2MII complexes. Structure of a heterotrinuclear CuII2ZnII complex exhibiting a helical twist Journal of the Chemical Society, Dalton Transactions (23). pp. 3831-3836. ISSN 0300-924
Full text not available from this repository.
Official URL: http://pubs.rsc.org/en/content/articlelanding/1995...
Related URL: http://dx.doi.org/10.1039/DT9950003831
Abstract
Three heterotrinuclear complexes [Cu2Zn(HL)][CIO4]3·3H2O 1, [Cu2Mg(HL)][CIO4]3·2H2O 2 and [Cu2Mg(HL)][NO3]3·3H2O 3 and two tetranuclear complexes [Cu4L][CIO4]4·4H2O 4 and [Cu4L(µ3-OH)][CIO4]3·MeOH 5 have been synthesized from a 38-membered macrocycle (H4L) having eight amine and four phenol functionalities. The compounds have been characterized on the basis of IR, UV/VIS and ESR spectroscopy and magnetic susceptibility measurements. Their redox chemistry has been studied by cyclic voltammetry and differential pulse voltammetry. The crystal structure of 1 has been determined. The two copper centers have N2O2 square-planar co-ordination environments and the zinc has a trigonal-bipyramidal geometry with N3O2 donors; one of the copper(II) ions is bridged to the zinc(II) ion by two phenolate oxygens. The cation in 1 has a helically twisted configuration.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Royal Society of Chemistry. |
| ID Code: | 87759 |
| Deposited On: | 21 Mar 2012 09:48 |
| Last Modified: | 21 Mar 2012 09:48 |
Repository Staff Only: item control page
