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Issue 22, 2015
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Synthesis and magnetic properties of manganese carbonyl complexes with different coordination modes of 3,4,5-triaryl-1,2-diphospholide ligands

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Abstract

The set of complexes bis-(μ:η11-3,4,5-triaryl-1,2-diphosphacyclopentadienyl)-bis-(tetracarbonyl manganese(I)) (aryl = C6H5 (2a), p-FC6H4 (2b), p-ClC6H4 (2c)) undergo an irreversible rearrangement to mononuclear 3,4,5-triaryl-1,2-diphosphacymantrenes (3a–c). According to quantum-chemical calculations binuclear complexes 2 can be considered to be products of kinetic control and mononuclear species 3 are thermodynamically favorable compounds. The antiferromagnetic intramolecular interaction observed for complexes 2 can be effectively tuned by using substituents in the para-position of the arene ring, whereas mononuclear 1,2-diphosphacymantrenes 3 are diamagnetic.

Graphical abstract: Synthesis and magnetic properties of manganese carbonyl complexes with different coordination modes of 3,4,5-triaryl-1,2-diphospholide ligands

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Article information


Submitted
11 Feb 2015
Accepted
23 Apr 2015
First published
24 Apr 2015

Dalton Trans., 2015,44, 10259-10266
Article type
Paper

Synthesis and magnetic properties of manganese carbonyl complexes with different coordination modes of 3,4,5-triaryl-1,2-diphospholide ligands

V. A. Miluykov, I. A. Bezkishko, L. R. Kochetkova, O. N. Kataeva, T. P. Gerasimova, S. A. Katsyuba, O. G. Sinyashin, P. Lönnecke, E. Hey-Hawkins, A. Parameswaran, Y. Krupskaya, V. Kataev and B. Büchner, Dalton Trans., 2015, 44, 10259
DOI: 10.1039/C5DT00624D

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