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

Article Abstract:

An organic molecular acid-base complex is synthesized from pyridine-substituted biradical in a triplet ground state and a benzoic acid derivative of monoradical with S=1/2. The complex is the first example of a hydrogen-bonded heterospin, heteromolecular complex exhibiting a magnetic phase transition in purely organic molecule-based materials.

Analysis, Phase transformations (Statistical physics), Phase transitions (Physics), Acid-base chemistry

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Multifrequency EPR study of metallofullerenes: Eu@C(sub 82) and Eu@(sub 74)

Article Abstract:

The cage structure of a family of europium metallofullerenes, Eu@C(sub 74) and three isomers or Eu@C(sub 82), were investigated. The semiphenomenological superposition-exchange model (SPEM) was invoked to examine a relationship between the molecular structures and zero-field splitting (ZFS) parameters.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Europium & Compounds, Usage, Electron paramagnetic resonance, Fullerenes, Europium

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Cytosine-substituted nitronylnitroxide radical: A key component for bio-inspired molecule-based magnetics

Article Abstract:

A cytosine-substituted nitronylnitroxide radical is synthesized. The nucleobase moiety plays a primary role in molecular packing in the crystal.

Science & research, Biological Product (except Diagnostic) Manufacturing, Drugs, Cytosine, Research, Molecular dynamics

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