The equilibrium nuclear distance is of paramount importance in the study of diatomic molecule properties.It can be obtained through spectroscopic experiments and quantum chemical calculations.The hydrogen molecule(H2)serves as the simplest diatomic molecule,making it an ideal example to illustrate the determination of equilibrium bond distance in homonuclear diatomic molecules.This paper introduces various spectroscopic experimental methods for measuring the equilibrium bond distance,including Raman spectroscopy,electric-field induced dipole spectroscopy,and quadrupole transition spectroscopy.Furthermore,the historical development of solving the Schrödinger equation for the hydrogen molecule,with specific emphasis on the equilibrium bond distance and bond dissociation energy,is discussed.
关键词
平衡核间距/键解离能/光谱方法/量子化学计算
Key words
Equilibrium internuclear distance/Bond dissociation energy/Spectroscopic methods/Quantum chemical computations
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