Absorption and Laser-Excited Fluorescence Spectra of Matrix-Isolated Metal van der Waals Dimers

阅读量：

作者：

展开

摘要：

For the past 10 years the study of diatomic van der Waals species has accelerated rapidly [l-451. These molecules possess only a very weakly bound ground state with no formal chemical bonding. The depth of the potential well, defined only by van d e r Waals forces, is typically less than 2000 cm1 (0.25 eV or 5 .72 kcal/mole). However, upon excitation of an antibonding electron to a bonding orbital, several lowlying excited states are expected to be chemically bound. Commonly referred to as excimers (excited state dimers), these molecules are found for atoms from Group IIA (alkaline earth), Group IIB, and Group 0 (rare gases), whose valence electrons constitute a closed shell.

展开

关键词：

Bibliography, General or Review/ matrix isolation spectra molecular fluorescence spectra of diatomic inorganic molecules van der Waals forces/ laser-excited fluorescence spectra matrix-isolated metal van der Waals dimers host environment vibrational relaxation absorption spectra/ A3320 Molecular spectra grouped by wavelength ranges A3350D Molecular fluorescence and phosphorescence spectra A3420 Interatomic and intermolecular potentials and forces