Accurate Experimental Potential Surfaces for Benzene

有了化学学部实验物理化学项目的资助，古德曼教授将继续他的基准工作，阐明苯分子中原子在紫外线照射下的详细运动。本研究的重点是为苯的基态和最低激发单重态的基本区域生成精确的势面。这些苯的实验力场将为校正闭壳基态和开壳激发态的理论调和和非调和势面模型提供急需的基准。同位素标记苯的双激光实验，结合传统的射流实验，应该可以建立一个完整的苯激发态谐波力场。

With this grant from the Experimental Physical Chemistry Program of the Chemistry Division, Professor Goodman will continue his benchmark work on elucidating the detailed motions of the atoms in the benzene molecule, when this molecule is subjected to ultraviolet light. The thrust of this research is to generate accurate potential surfaces for the fundamental region of the ground and lowest excited singlet states of benzene. These benzene experimental force fields will provide badly needed benchmarks for calibrating theoretical harmonic and anharmonic potential surface models for both closed shell ground and open shell excited states. Two-laser experiments on isotopically labelled benzene, combined with conventional jet experiments, should allow a complete harmonic force field to be constructed for the benzene excited state.