Building Blocks for Organic Heterospin, Heteromolecular Complexes as Models for Organic Molecule-Based Ferrimagnets
Magnetic properties and crystal structure of a pyridine-substituted iminonitroxide biradical, 3,5-bis(4,4,5,5,-tetramethyl-4,5-dihydro-1H-imidazol-2-yl-1-oxyl)pyridine (1), were examined. The molecular ground state of 1 was found to be triplet (S = 1) with a singlet-triplet energy gap of 2J/kB = 7.0 K. The triplet biradical serves as a building block for molecule-based magnets of S > 1/2 based on intermolecular noncovalent bonds.
KeywordsMagnetic Susceptibility Molecular Ground State Intermolecular Short Distance Intermolecular Exchange Interaction Incomplete Dispersion
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- 1.For recent overviews of molecule-based magnetism, see: (a) P. M. Lahti, Magnetic of Organic Materials, Marcel Dekker, New York (1999). (b) K. Itoh and M. Kinoshita, Molecular Magnetism, Gordon and Breach, Amsterdam (Kodansha as copublisher, Tokyo), (2000).Google Scholar