N-(2-methoxycarbonyl-2-yloethyl) (3-nitrenophenyl)aminyl: EPR observation of a quintet hetero-spin molecule.
[reaction: see text]. The EPR observation of a ground-state quintet hetero-spin molecule, N-(2-methoxycarbonyl-2-yloethyl) (3-nitreno-phenyl)aminyl 3, in a MTHF matrix at cryogenic temperatures is reported. The molecule has two different kinds of triplet sites, and the ZFS parameters of the quintet are /D/hc/ = 0.170 cm(-1) and /E/hc/ = 0.004 cm(-1). As a result of the nature of the 1,3-localized biradical, the quintet 3 was thermally labile over 5 K.
Tukada
H
H
Graduate School of Integrated Science, Yokohama City University, Kanazawa-ku, Yokohama, 236-0027, Japan. htht@yokohama-cu.ac.jp