Issue 8, 2003

Structural, magnetic and related attributes of some oximate-bridged tetranuclear nickel(ii) rhombs and a dinuclear congener

Abstract

New oximate-bridged tetranuclear nickel(II) complexes of compositions {Ni(Dien)}23-OH)2{Ni2(Moda)4}(ClO4)2·Solv (Solv = H2O, 1a; Solv = 2CH3NO2, 1b; Solv = 2H2O·2C4H8O2, 1c), {Ni(Sdien)}23-OH)2{Ni2(Moda)4}(ClO4)2·H2O (2), {Ni(Odien)}23-OH)2{Ni2(Moda)4}(ClO4)2·0.6H2O (3), {Ni(Dien)}23-OH)2{Ni2(Inaf)4}(ClO4)2·CH3NO2 (4) and {Ni(Odien)}23-OH)2{Ni2(Inaf)4}(ClO4)2·2NaClO4·2H2O (5) and the dinuclear complex (Ni{Odien})2(Moda)2(ClO4)2 (6) have been prepared (Dien = 1,5-diamino-3-azapentane, Odien = 1,5-diamino-3-oxapentane, Sdien = 1,5-diamino-3-thiapentane, ModaH = butane-2,3-dione monooxime, InafH = phenylglyoxaldoxime). X-ray examination revealed similar structures for 1a, 1b, 1c, 2 and 3, with a rhombic “chair” (out-of-phase “butterfly”) arrangement of the four nickel(II) atoms and two hydroxo-bridges. The complexes were examined by magnetochemistry, UV-VIS spectroscopy and voltammetry. 13 display antiferromagnetic coupling of the central with the terminal nickel(II) atoms and ferromagnetic spin alignment between the central nickel(II) atoms. In contrast, all the spin exchanges in 4 and 5 were found to be antiferromagnetic, as is the coupling in dinuclear 6.

Graphical abstract: Structural, magnetic and related attributes of some oximate-bridged tetranuclear nickel(ii) rhombs and a dinuclear congener

Supplementary files

Article information

Article type
Paper
Submitted
14 Jan 2003
Accepted
03 Feb 2003
First published
06 Mar 2003

Dalton Trans., 2003, 1587-1595

Structural, magnetic and related attributes of some oximate-bridged tetranuclear nickel(II) rhombs and a dinuclear congener

V. V. Pavlishchuk, S. V. Kolotilov, A. W. Addison, M. J. Prushan, D. Schollmeyer, L. K. Thompson, T. Weyhermüller and E. A. Goreshnik, Dalton Trans., 2003, 1587 DOI: 10.1039/B300539A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements