title: Pressure-tuning infrared and Raman spectroscopy of group 14 tetraphenyl compounds.
abstract: The effect of high external pressures on the vibrational spectra of the tetraphenyl Group 14 compounds, Ph4M (M = Si, Ge, Sn, Pb), were examined between ambient pressure and 40 kbar with the aid of a diamond-anvil cell. The four compounds displayed similar behaviour as the pressure was increased and a structural transition at approximately 15 kbar, most probably associated with a phenyl ring rotation, was identified in each case. The pressure dependencies of selected vibrational modes were obtained.
authors.affiliation: Department of Chemistry, McGill University, Montreal, Quebec, Canada.
authors.forename: S D
authors.initials: SD
authors.lastname: Warner
authors.forename: I S
authors.initials: IS
authors.lastname: Butler
authors.forename: I
authors.initials: I
authors.lastname: Wharf
mesh_terms: D009942:Organometallic Compounds / Q000737:chemistry*; D017646:Organosilicon Compounds / Q000737:chemistry*; D013055:Spectrophotometry, Infrared / Q000379:methods*; D013059:Spectrum Analysis, Raman / Q000379:methods*
chemical_list: D009942:Organometallic Compounds; D017646:Organosilicon Compounds; C411136:tetraphenylgermane; C411135:tetraphenylsilane