144.24 amu
dimer vibrational frequency = 148.0
dimer force constant = 0.93 mdyne/A
References
Absorption, Excitation and Resonance
Raman spectra
of Ce2, Pr2 and
Nd2
Xiaole Shen, Li Fang,, Xiaoyu Chen and John R. Lombardi
J. Chem. Phys., To be published
Abstract
We report the absorption, resonance Raman and excitation spectra of mass
selected cerium, praseodymium, and neodymium dimer in Argon matrices. Absorption
bands were found for each sample. The excitation profiles give more sensitive
detail and resemble absorption spectra. Resonance Raman spectra give single
progression for which Ce2: we
= 245.4 ± 4.2 cm-1, Pr2: we
=244.9 ± 1.2 cm-1, and Nd2: we=148.0
± 1.9 cm-1, wexe=0.7
± 0.4 cm-1. Comparison among lanthanide dimers is discussed.
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