2‐[ p ( N‐tert ‐butyl‐ N ‐oxyamino)phenyl]‐4,4,5,5‐tetramethyl‐4,5‐dihydroimidazol‐3‐oxide‐1‐oxyl, a Stable Diradical with a Triplet Ground State | Zendy

Inoue Katsuya | Zendy; Iwamura Hiizu | Zendy

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2‐[ p ( N‐tert ‐butyl‐ N ‐oxyamino)phenyl]‐4,4,5,5‐tetramethyl‐4,5‐dihydroimidazol‐3‐oxide‐1‐oxyl, a Stable Diradical with a Triplet Ground State

Author(s) -

Inoue Katsuya,

Iwamura Hiizu

Publication year - 1995

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.199509271

Subject(s) - diradical , chemistry , nitroxyl , magnetic moment , oxide , ground state , planar , crystallography , stereochemistry , medicinal chemistry , photochemistry , condensed matter physics , physics , organic chemistry , singlet state , atomic physics , computer graphics (images) , computer science , excited state

A value of 2.71 μ B for the effective magnetic moment between 100 and 300 K is determined for 1 . This magnetic moment supports the assumption of a triplet ground state for 1 . The bis(nitroxyl) diradical, which melts only at 180 °C with decomposition, could be characterized by X‐ray crystallography. It has a distinctly more planar conformation than the analogous monoradicals.

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