A spin-frustrated star-shaped heterotetranuclear CrIIIMnII3 species and its magnetic and HF-EPR measurements

Sumit Khanra; Biplab Biswas; Christian Golze; Bernd Büchner; Vladislav Kataev; Thomas Weyhermüller; Phalguni Chaudhuri

doi:10.1039/B613293F

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

A spin-frustrated star-shaped heterotetranuclear Cr^IIIMn^II₃ species and its magnetic and HF-EPR measurements†

Sumit Khanra,^a Biplab Biswas,^a Christian Golze,^b Bernd Büchner,^b Vladislav Kataev,^b Thomas Weyhermüller^a and Phalguni Chaudhuri*^a

Author affiliations

* Corresponding authors

^a Max-Planck-Institute for Bioinorganic Chemistry, Stiftstraße 34-36, Mülheim an der Ruhr, Germany
E-mail: Chaudh@mpi-muelheim.mpg.de

^b Leibnitz Institute for Solid State and Materials Research IFW Dresden, Helmholtz Straße 20, Dresden, Germany

Abstract

A tetranuclear complex [Cr^IIIMn^II₃(PyA)₆Cl₃] 1 containing pyridine-2-aldoximato monoanion, PyA, has been structurally and magnetochemically characterized. The compound is a rare example of a tetranuclear star-shaped metal topology containing pyridine-2-aldoximato ligands. Static magnetic studies have demonstrated very weak antiferromagnetic exchange interactions between the paramagnetic centers (S_Cr = 3/2 and S_Mn = 5/2) resulting in closely spaced low-lying levels, which undergo splitting and crossing. Preliminary high-field EPR measurements (20 < ν < 388 GHz) indicate the presence of zero-field splitting D of the order of 0.7 cm⁻¹.

Download options Please wait...

Supplementary files

Crystal structure data TXT (15K)

Article information

DOI: https://doi.org/10.1039/B613293F
Article type: Paper
Submitted: 13 Sep 2006
Accepted: 06 Nov 2006
First published: 16 Nov 2006

Download Citation

Dalton Trans., 2007, 481-487

Permissions

Request permissions

A spin-frustrated star-shaped heterotetranuclear Cr^IIIMn^II₃ species and its magnetic and HF-EPR measurements

S. Khanra, B. Biswas, C. Golze, B. Büchner, V. Kataev, T. Weyhermüller and P. Chaudhuri, Dalton Trans., 2007, 481 DOI: 10.1039/B613293F

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.

Social activity

Fetching data from CrossRef.
This may take some time to load.

Dalton Transactions