手性分子1-苯乙醇的高分辨率紫外光谱分析

IF 2.9 3区化学 Q3 CHEMISTRY, PHYSICAL

Physical Chemistry Chemical Physics Pub Date : 2025-09-26 DOI:10.1039/d5cp02854j

Shilpa Yadav, Ju Hyeon Lee, Gerard Meijer, Sandra Eibenberger-Arias

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引用次数: 0

摘要

在冷种子分子束中，通过激光诱导荧光检测，测量了手性分子1-苯乙醇的S1←S0电子跃迁的旋转分辨激发光谱。通过拟合419条谱线，确定了s1态的旋转常数和结构。发现跃迁偶极矩沿b和a惯性轴有主要的投影，沿c轴只有很小的贡献，与从头计算一致。利用双色（1+1’）共振增强的多光子电离，确定了S1激发态寿命为70±18 ns。

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High-resolution UV spectroscopy of the chiral molecule 1-phenylethanol

The rotationally resolved excitation spectrum of the S₁ ← S₀ electronic transition of the chiral molecule 1-phenylethanol is measured via laser-induced fluorescence detection in a cold, seeded molecular beam. The rotational constants and structure of the S 1 state are determined by fitting 419 spectral lines. The transition dipole moment is found to have predominant projections along the b and a inertial axes with only a small contribution along the c-axis, in agreement with ab initio calculations. Using two-color (1+1') resonance-enhanced multiphoton ionization the S₁ excited state lifetime is determined as 70 ± 18 ns.

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来源期刊

Physical Chemistry Chemical Physics 化学-物理：原子、分子和化学物理

CiteScore

5.50

自引率

9.10%

发文量

2675

审稿时长

2.0 months

期刊介绍： Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.