Hydrogen bond assisted co-crystallization of a bimetallic MnIII2NiII2 cluster and a NiII2 cluster unit: synthesis, structure, spectroscopy and magnetism

Sanjit Nayak; Guillem Aromí; Simon J. Teat; Jordi Ribas-Ariño; Patrick Gamez; Jan Reedijk

doi:10.1039/B919654D

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Hydrogen bond assisted co-crystallization of a bimetallic Mn^III₂Ni^II₂cluster and a Ni^II₂cluster unit: synthesis, structure, spectroscopy and magnetism†

Sanjit Nayak,^a Guillem Aromí,^b Simon J. Teat,^c Jordi Ribas-Ariño,^d Patrick Gamez^a and Jan Reedijk*^a

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* Corresponding authors

^a Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, The Netherlands
E-mail: reedijk@chem.leidenuniv.nl
Fax: (+31) 71-5274671
Tel: (+31) 71-5274459

^b Departament de Química, Universitat de Barcelona, Diagonal, 647, Spain

^c Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

^d Lehrstuhl für Theoretische Chemie, Ruhr-Universität-Bochum, Germany

Abstract

A new bimetallic Schiff-base composite complex [Ni₂(LH₂)₂(H₂O)₂Cl₂][Mn₂Ni₂(LH)₄]₂Cl₄(CH₃OH) (1) has been synthesized by a simple one-pot reaction. The compound was structurally characterized by single-crystal X-ray diffraction. In the crystal structure the dinuclear nickel units are connected to the tetranuclear Mn₂Ni₂ units by means of strong hydrogen-bonding interactions. The compound was further characterized by ESI-MS, ligand-field and infrared spectroscopy. The magnetic properties of the compound have been studied in combination with preliminary DFT calculations, and have resulted in the successful determination of the nature of the magnetic exchange interactions between the metal ions, and hence the coupling constants.

This article is part of the themed collection: Molecular magnets

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Article information

DOI: https://doi.org/10.1039/B919654D
Article type: Paper
Submitted: 21 Sep 2009
Accepted: 05 Nov 2009
First published: 22 Dec 2009

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Dalton Trans., 2010,39, 4986-4990

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Hydrogen bond assisted co-crystallization of a bimetallic Mn^III₂Ni^II₂ cluster and a Ni^II₂ cluster unit: synthesis, structure, spectroscopy and magnetism

S. Nayak, G. Aromí, S. J. Teat, J. Ribas-Ariño, P. Gamez and J. Reedijk, Dalton Trans., 2010, 39, 4986 DOI: 10.1039/B919654D

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