Issue 65, 2012
From the journal:

Chemical Communications

Spin crossover in phosphorus- and arsenic-bridged cyclopentadienyl-manganese(ii) dimers†

Sabine Scheuermayer,a   Floriana Tuna,bc   Michael Bodensteiner,a   Manfred Scheer*a  and  Richard A. Layfield*ac  

* Corresponding authors

a Institut für Anorganische Chemie, Universität Regensburg, 93040 Regensburg, Germany
E-mail: Manfred.Scheer@chemie.uni-regensburg.de

b EPSRC National UK EPR Facility, Photon Science Institute, The University of Manchester, Oxford Road, Manchester, UK

c School of Chemistry, The University of Manchester, Oxford Road, Manchester, UK
E-mail: Richard.Layfield@manchester.ac.uk

Abstract

Manganocene reacts with LiE(SiMe3)2 (E = P or As) to give [(η5-Cp)Mn{μ-E(SiMe3)2}]2, where E = P (1) or As (2). The temperature dependence of the magnetic susceptibility in 1 and 2 is due to antiferromagnetic exchange and to spin-crossover (SCO). Compound 2 shows two-step SCO with hysteresis, involving high-spin (S = 5/2) and intermediate-spin S = (3/2) Mn(II).

Graphical abstract: Spin crossover in phosphorus- and arsenic-bridged cyclopentadienyl-manganese(ii) dimers

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Article information

DOI
https://doi.org/10.1039/C2CC32893C
Article type
Communication
Submitted
23 Apr 2012
Accepted
11 May 2012
First published
14 May 2012

Chem. Commun., 2012,48, 8087-8089

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Spin crossover in phosphorus- and arsenic-bridged cyclopentadienyl-manganese(II) dimers

S. Scheuermayer, F. Tuna, M. Bodensteiner, M. Scheer and R. A. Layfield, Chem. Commun., 2012, 48, 8087 DOI: 10.1039/C2CC32893C

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