title: Study of high-pressure Raman intensity behavior of aromatic hydrocarbons: benzene, biphenyl and naphthalene.
abstract: Raman spectra of benzene, naphthalene and biphenyl have been taken up to a pressure of 13 GPa. The results for benzene and naphthalene indicate that the perturbation of inter-molecular π-π stacking effect on the Raman intensity is neglectable. For biphenyl, all the Raman peaks show intensity enhancement during the compression process, which indicates the planar intra-molecular aromatic conformation play an important role in the intensity increments of Raman bands. For three aromatic compounds, C-H stretching vibration bands located at about 3000 cm(-1) show intriguing intensity changes during compression account for the inter-molecular C-H⋯π interaction.
authors: State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, PR China. mzhou@jlu.edu.cn
authors: Mi
authors: M
authors: Zhou
authors: Kai
authors: K
authors: Wang
authors: Zhiwei
authors: Z
authors: Men
authors: Shuqin
authors: S
authors: Gao
authors: Zuowei
authors: Z
authors: Li
authors: Chenglin
authors: C
authors: Sun
mesh_terms: D001554:Benzene / Q000737:chemistry*; D001713:Biphenyl Compounds / Q000737:chemistry*; D004583:Electrons; D009281:Naphthalenes / Q000737:chemistry*; D011312:Pressure; D013059:Spectrum Analysis, Raman; D014732:Vibration
chemical_list: D001554:Benzene; D001713:Biphenyl Compounds; D009281:Naphthalenes; C031721:naphthalene; C010574:biphenyl