structure-dependent. Time-resolved optical spectroscopy and DFT calculations indicate that the O and S dyads possess a pseudo-equatorial structure and the lowest energy excited singlet state has charge-transfer character, but the Se and Te dyads possess pseudo-axial structure and a tolan localised excited state.
一系列具有 O、S、Se 和 Te 杂原子的N-
甲苯酰基-
酚硫代三嗪的光物理学强烈依赖于结构。时间分辨光谱和DFT计算表明O和S二元体具有赝赤道结构且最低能量激发单重态具有电荷转移特性,而Se和Te二元体具有赝轴结构和托兰局域激发态状态。