作者:Masaki Minato、Paul M. Lahti
DOI:10.1002/poc.610070905
日期:1994.9
a high-spin open-shell dinitrene. The results are consistent with oxygen being a weak exchange coupling linker in pi-conjugated open-shell molecules. The observed ground-state spin multiplicities are in accord with qualitative superexchange and connectivity models, despite any perturbations due to resonance effects between the oxygen linker and p-nitrene sites.
一系列的米,Ñ '-diazidodiphenyl醚(米≤N,M = 3,4; ñ = 3,4)在77K冷冻,玻璃状2-甲基四氢呋喃矩阵以生成相应的二苯基乙醚光分解米,Ñ ' -二苯甲醚,用于电子自旋共振(ESR)光谱研究。3,4'-二叠氮二苯醚的ESR谱图为nit D / hc ∣ = 0·972 cm -1的单氮化物峰,还表现出a D / hc ∣ = 0·162 cm-的弱二氮化物五重体光谱。 1个ESR光谱强度与温度的关系(居里定律)与高自旋基态或很小的单重态-五重态带隙一致。二(3-叠氮苯基)醚产生一个强的单氮化物峰,∣ D / hc ∣ = 0·996 cm -1和一个五重态二硝烯ESR光谱(∣ D / hc ∣ = 0·162 cm -1),表现出非线性居里定律强度行为与五重奏一致,该五重奏是在单重态基态上方40 cal mol -1的热填充激发态。二(4-叠氮基苯基)醚给出一个强的单硝烯峰,∣