Faculty of Organic Chemistry and Technology, Ivanovo State University of Chemistry and Technology, 153000 Ivanovo, Russia.
Institute for Physics of Microstructures of Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia.
Int J Mol Sci. 2023 Oct 14;24(20):15168. doi: 10.3390/ijms242015168.
The luminescent and photophysical properties of the etioporphyrin-I complex with indium(III) chloride, InCl-EtioP-I were experimentally studied at room and liquid nitrogen temperatures in pure and mixed toluene solutions. At 77 K, in a 1:2 mixture of toluene with diethyl ether, the quantum yield of phosphorescence reaches 10.2%, while the duration of phosphorescence is 17 ms. At these conditions, the ratio of phosphorescence-to-fluorescence integral intensities is equal to 26.1, which is the highest for complexes of this type. At 298 K, the quantum yield of the singlet oxygen generation is maximal in pure toluene (81%). Quantum-chemical calculations of absorption and fluorescence spectra at temperatures of 77 K and 298 K qualitatively coincide with the experimental data. The InCl-EtioP-I compound will further be used as a photoresponsive material in thin-film optoelectronic devices.
在室温及液氮温度下，我们在纯甲苯溶液和甲苯与乙醚的混合溶液中对铟（III）氯化物与粪卟啉-I（EtioP-I）的配合物的发光和光物理性质进行了实验研究。在 77 K 时，在 1:2 的甲苯与乙醚混合溶液中，磷光量子产率达到 10.2%，而磷光持续时间为 17 ms。在这些条件下，磷光与荧光积分强度的比值等于 26.1，这是此类配合物中最高的。在 298 K 时，纯甲苯中 singlet oxygen 生成的量子产率最大（81%）。在 77 K 和 298 K 温度下的吸收和荧光光谱的量子化学计算定性上与实验数据相符。InCl-EtioP-I 化合物将进一步用作薄膜光电设备中的光响应材料。
