Optimization of Phenanthrene Structure and Vibrational Spectra Studies Based on Density Functional Theory

Autor: 李鱼 Li Yu, 李兴春 Li Xing-chun, 杜显元 Du Xian-yuan, 姜龙 Jiang Long, 邹乔 Zou Qiao
Rok vydání: 2012
Předmět:
Zdroj: Chinese Journal of Luminescence. 33:1389-1397
ISSN: 1000-7032
Popis: The optimum molecular geometry of phenanthrene(PHE) was calculated by the B3LYP method of density functional theory(DFT) using 6-311++G(d,p) basis sets,and data source of vibration frequency,polarizability,and thermo-dynamical parameters were set up.By contrast with the experimental spectra,the vibrational assignment of PHE was discussed.In addition,part of significant parameters such as HOMO-LUMO energy gap,molecular electrostatic potentials and atomic charge were calculated based on the frontier molecular orbital,molecular electrostatic potentials and Mulliken population analyses.This study provides a theoretical support for the spectral detection technology,especially for the analysis of the electronic structure and spectra of PAHs.
Databáze: OpenAIRE