Metamagnetic behavior of [Ni(4ImNNH)2(NO3)2] having a ground high-spin state (4ImNNH=4-imidazolyl nitronyl nitroxide)

• Autores: Takayuki Ishida, Chigusa Aoki, Takashi Nogami
• Localización: Inorganic chemistry communications, ISSN 1387-7003, Vol. 6, Nº 8, 2003, págs. 1122-1125
• Idioma: inglés
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• Resumen

  • A new chelating radical ligand 4ImNNH (2-(4-imidazolyl)-4,4,5,5-tetramethylimidazolin-1-yloxyl 3-oxide) was prepared, and complexation with nickel(II) nitrate gave [Ni(4ImNNH)2(NO3)2] as a discrete mononuclear complex. Magnetic measurements revealed that [Ni(4ImNNH)2(NO3)2] had a ground high-spin state (Stotal=2) and exhibited metamagnetic behavior below 3.4 K.