Y. Hosokoshi, M. Tamura, K. Nozawa
Jul 24, 1994
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Abstract
Abstract Magnetic properties and crystal structures of 2-hydro, 2-bromo and 2-iodo nitronyl nitroxide radicals (abbreviated as HNN, BrNN and INN, respectively), [HNN = 2-hydro-4,4,5,5,-tetramethyl 4,5-dihydro-1H-imidazol-1-oxyl 3-oxide], were investigated. These three radical crystals have similar structural units. In particular, BrNN and INN have almost the same molecular packings. However, only INN exhibits dominant ferromagnetic interactions.