Issue 39, 2011

Use of 6-methylpyridine-2-carbaldehydeoxime in nickel(ii) carboxylate chemistry: synthetic, structural and magnetic properties of penta and hexanuclear complexes

Abstract

The use of 6-methylpyridine-2-carbaldehydeoxime ligand (6-mepaoH), in nickel(II) chemistry has been investigated and three new clusters isolated in mild conditions. Depending on the nature of the metal starting salts and the reaction conditions, the NiII/6-mepaoH system has provided access to the complexes [Ni6(O2CPh)6(6-mepao)6] (1), [Ni6(O2CMe)6(6-mepao)6] (2) and [Ni5(3-Cl-BzO)4(6-mepao)4(6-mepaoH)2(N3)2] (3), where 3-Cl-BzO is the 3-chlorobenzoate anion. Compounds 1 and 2 are two new members of the [Ni6(O2C-R)(oximato)6] family of hexanuclear complexes whereas 3 exhibits an unusual irregular bowtie topology including end-on azido bridges. The structures of the three compounds have been determined by single-crystal X-ray crystallography. Variable-temperature dc magnetic susceptibility studies were carried out for 1–3. The data indicate antiferromagnetic exchange for complexes 1 and 2 and ferrimagnetic interaction for complex 3.

Graphical abstract: Use of 6-methylpyridine-2-carbaldehydeoxime in nickel(ii) carboxylate chemistry: synthetic, structural and magnetic properties of penta and hexanuclear complexes

Supplementary files

Article information

Article type
Paper
Submitted
14 Apr 2011
Accepted
03 Aug 2011
First published
05 Sep 2011

Dalton Trans., 2011,40, 10109-10116

Use of 6-methylpyridine-2-carbaldehydeoxime in nickel(II) carboxylate chemistry: synthetic, structural and magnetic properties of penta and hexanuclear complexes

A. Escuer, G. Vlahopoulou and F. A. Mautner, Dalton Trans., 2011, 40, 10109 DOI: 10.1039/C1DT10657K

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