Vibrational State & Energy Resonance | Nanci Trivellato
Excited Vibrational State - an overview | ScienceDirect Topics
Explain why transitions between different electronic states are always accompanied by vibrational band structure. In other words, why does a molecule once get excited electronically undergo through vibrational transitions? | Homework.Study.com
physical chemistry - Fluorescence and resulting vibrational state - Chemistry Stack Exchange