High-spin supramolecular pair of Mn(II)/thiazyl radical complexes

The Mn(hfac)(2) complex of the paramagnetic 4-(benzoxazol-2'-yl)-1,2,3,5-dithiadiazolyl ligand is reported (hfac = 1,1,1,5,5,5-hexafluoroacetylacetonato-). The Mn(ii) and radical ligand spins are coupled antiferromagnetically (AF) in the coordination complex. Short sulfur-oxygen contacts betwee...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2010-01, Vol.46 (35), p.6569-6571
Main Authors: Fatila, Elisabeth M, Goodreid, Jordan, Clérac, Rodolphe, Jennings, Michael, Assoud, Jalil, Preuss, Kathryn E
Format: Article
Language:English
Subjects:
Chemical Sciences
Coordination chemistry
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Summary:The Mn(hfac)(2) complex of the paramagnetic 4-(benzoxazol-2'-yl)-1,2,3,5-dithiadiazolyl ligand is reported (hfac = 1,1,1,5,5,5-hexafluoroacetylacetonato-). The Mn(ii) and radical ligand spins are coupled antiferromagnetically (AF) in the coordination complex. Short sulfur-oxygen contacts between molecules provide an efficient pathway for AF coupling between the radical ligand of one molecule and the Mn(ii) of a neighbouring molecule, resulting in a large total spin ground state (S(T) = 4) for a pair of molecules.
ISSN:1359-7345
1364-548X
DOI:10.1039/c0cc01084g