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Ferromagnetic Intermolecular Interaction and Crystal Structure of α-Nitronyl Nitroxide

Published online by Cambridge University Press:  25 February 2011

Kunio Awaga ,
Tamotsu Inabe  and
Yusei Maruyama
Kunio Awaga
Affiliation:
Institute for Molecular Science, Myodaiji, Okazaki 444, Japan
Tamotsu Inabe
Affiliation:
Institute for Molecular Science, Myodaiji, Okazaki 444, Japan
Yusei Maruyama
Affiliation:
Institute for Molecular Science, Myodaiji, Okazaki 444, Japan
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Abstract

The temperature dependence of the magnetic susceptibilities for several ±-nitronyl nitroxides have been measured. It is found that the intermolecular magnetic coupling in these radical crystals changes from antiferromagnetic to ferromagnetic depending on the substituents at ±-position. X-Ray crystal analysis and MO calculation have been carried out on the ferromagnetic ±-nitronyl nitroxide, 2-(4-nitrophenyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-1-oxy 3-oxide, revealing a two-dimensional ferromagnetic network linked by the Nδ+...0δ− Coulomb attraction.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 173: Symposium Q – Advanced Organic Solid State Materials , 1989 , 33
Copyright
Copyright © Materials Research Society 1990

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References

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