Magnetic phase transition in a heteromolecular hydrogen-bonded complex of nitronylnitroxide radicals.

Abstract

An organic molecular acid-base complex has been synthesized from pyridine-substituted biradical 2 in a triplet (S = 1) ground state and a benzoic acid derivative of monoradical 3 with S = 1/2. The two constituent molecules are bound by an OH-N hydrogen bond in a crystalline solid state. The complex has been found to exhibit an antiferromagnetic phase transition at 5 K. The complex is the first example of a hydrogen-bonded heterospin, heteromolecular complex exhibiting a magnetic phase transition in purely organic molecule-based materials.

Cite this paper

@article{Hayakawa2005MagneticPT, title={Magnetic phase transition in a heteromolecular hydrogen-bonded complex of nitronylnitroxide radicals.}, author={Kenichi Hayakawa and Daisuke Shiomi and Tomoaki Ise and Kazunobu Sato and Takeji Takui}, journal={The journal of physical chemistry. B}, year={2005}, volume={109 19}, pages={9195-7} }