Spectroscopic signatures of the S0, S1, and D0 states of indan: An experimental and theoretical investigation

被引：0

作者：

Hua, Zefeng ^{[1
]}

Deng, Jinhui ^{[1
]}

Sun, Zhongfa ^{[1
]}

Yang, Xinyan ^{[1
]}

Qin, Zhengbo ^{[1
]}

Zheng, Xianfeng ^{[1
]}

机构：

[1] Anhui Normal Univ, Sch Phys & Elect Informat, Anhui Prov Key Lab Control & Applicat Optoelect In, Wuhu 241002, Anhui, Peoples R China

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2025年 / 461卷

基金：

中国国家自然科学基金;

关键词：

Resonance-enhanced multiphoton ionization; (REMPI); Slow electron velocity-map imaging (SEVI); Indan; Vibrational assignments; SPECTRA; PHOTOELECTRON; IONIZATION; ABSORPTION; S-0;

D O I：

10.1016/j.jphotochem.2024.116175

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electronic and vibrational spectra of indan were explored through the utilization of Fourier transform infrared (FT-IR) spectrum, one-color resonant two-photon ionization (1C-R2PI) spectrum, and two-color resonant two-photon ionization (2C-R2PI) slow electron velocity-map imaging (SEVI) techniques in combination with quantum chemical calculations. Experimental spectra are found to be in good overall accordance with the theoretical calculations. The vibrational modes of the S0 neutral ground state, S1 first electronic excited state, and D0 cationic ground state were assigned with the assistance of density functional theory (DFT) calculations. The S1 <- S0 electronic transition energy was determined to be 36909 +/- 5 cm- 1 from the one-color resonant two- photon ionization spectrum. Moreover, the adiabatic ionization energy was deduced as 68419 +/- 6 cm-1 based on the SEVI spectra.

引用

页数：6

共 26 条

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