Electronic spectrum of AgNH3 complex
1999
Abstract The electronic spectrum of the silver–ammonia 1:1 complex AgNH 3 has been observed for the first time. The complex was formed using laser ablation and cooled in a free jet expansion, and its spectrum was observed through resonantly enhanced multiphoton ionization (REMPI). The origin of the A–X band system of AgNH 3 located at 467 nm is red-shifted from the corresponding Ag 5p 2 P 1/2 –5s 2 S transition by 8142 cm −1 , indicating a significant stabilization upon electronic excitation. The vibrational frequency of the intermolecular stretching mode in the A state was determined to be 378 cm −1 .
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