Some observations of various 1,8 naphthoquino-dimethane biradicals by electron spin resonance spectroscopy
作者:Matthew S. Platz、Glen Carrol、Frank Pierrat、Josè Zayas、Sheila Auster
DOI:10.1016/0040-4020(82)80158-0
日期:1982.1
Photolysis of 8-methyl-1-naphthyldiazomethane at 4 K gives the triplet ESR spectrum of 1,8-naphthoquinodimethane but not that of 8-methyl-1-naphthylcarbene. Photolysis of either 8-methyl-1-azido-naphthalene or 8-amino-1-azidonaththalene does produce the triplet biradical spectra of 8-imino-1-naphthoquinomethane and 1,8-diiminonaphthoquinodimethane, in addition to the triplet nitrene spectra of 8-m
8-甲基-1-萘重氮甲烷在4 K下的光解产生1,8-萘醌二甲烷的三重态ESR谱图,但未显示8-甲基-1-萘基卡宾的三重谱图。除8的三重态氮谱外,对8-甲基-1-叠氮基萘或8-氨基-1-叠氮基萘的光解作用还产生了8-亚氨基-1-萘醌甲烷和1,8-二亚氨基萘邻醌二甲烷的三重双自由基光谱。 -甲基-1-硝基-萘和8-氨基-1-硝基-萘。居里定律的分析表明,这些双基都是基态三元组。报告了与双基有关的Hückel和INDO计算。在8个取代的1-萘腈的ESR光谱中观察到大的电荷转移相互作用。