Demonstration of the degeneracy of the singlet and triplet states in 2,3-dimethylenecyclohexane-1,4-diyl by measurement of its magnetic properties †
作者:Kenji Matsuda、Hiizu Iwamura
DOI:10.1039/a706301f
日期:——
magnetization of 2,3-dimethylenecyclohexane-1,4-diyl (1), a conformationally restricted tetramethyleneethane (TME), have been investigated at 2–20 K and applied fields of 0–5 T. Theoretical curves for a model in which singlet and tripletstates are in equilibrium were fitted to the experimental data. In contrast with a previous interpretation of the EPR signal intensities, singlet and tripletstates were found
构象受限的四亚甲基乙烷(TME)2,3-二亚甲基环己烷-1,4-二基(1)的磁化率和磁化强度已在2-20 K和0-5 T的应用磁场下进行了研究。模型的理论曲线其中单重态和三重态处于平衡的状态适合于实验数据。与先前对EPR信号强度的解释相反,发现单重态和三重态几乎是简并的(2 | J / k B | <1 K),从而解决了有关基态的理论和实验解释的争议的1。