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Ferromagnetic interaction between nitronyl nitroxide radical cations in a semiconducting salt

โœ Scribed by H. Imai; T. Inabe; T. Otsuka; T. Okuno; K. Awaga


Book ID
117541222
Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
222 KB
Volume
85
Category
Article
ISSN
0379-6779

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๐Ÿ“œ SIMILAR VOLUMES


Ferromagnetic intermolecular interaction
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Semi-empirical APUHF and ab initio UNO CASSCF/4-31G calculations have been carded out for the dimer of m-N-methylpyridinium nitronyl nitroxide cation (m-MPYNN + ) extracted from its experimental crystal structure in order to elucidate the origin of the large ferromagnetic effective exchange integral

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The crystal structure of a new phase of the pnitrophenyl nitronyl &oxide radical compound is described. A study of its magnetic properties reveals the largest intermolecular ferromagnetic coupling reported so far among a series of polymorphs of this compound.

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An a-nitronyl nitroxide cation radical, 2-( 3-N-methylpyridinium)-4,4,5,5-tetramethyl-4,5-dihydro-lH-imidazol-l-oxyl 3-Noxide, has been found to possess a unique structure and magnetic properties: the molecules are manifested as dimers with a very short intermolecular contact between the NO group an