Pressure‐induced Fermi resonance between fundamental modes in 7,7,8,8‐tetracyanoquinodimethane
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Raman Spectroscopy"
DOI: 10.1002/jrs.5191
Abstract: Herein, in-situ high pressure Raman spectra of 7,7,8,8-tetracyanoquinodimethane (TCNQ) have been measured up to 10 GPa, and a first-order phase transition was detected at about 2.3 GPa. An anharmonic coupling (Fermi resonance) between fundamental modes was observed.… read more here.
Keywords: resonance fundamental; fermi resonance; resonance; fundamental modes ... See more keywords
Raman spectroscopic study of nonlinear modulation on Fermi resonance of acetonitrile by hydrogen-bonding network
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Molecular Liquids"
DOI: 10.1016/j.molliq.2019.02.016
Abstract: Abstract Raman spectra of acetonitrile-water mixtures are measured in different acetonitrile concentration fractions. The nitrile stretch (v2) and the combination (v3 + v4) modes are coupled by Fermi resonance. We extract the Fermi resonance parameters and find… read more here.
Keywords: nonlinear modulation; fermi resonance; resonance; modulation fermi ... See more keywords
Double Fermi resonance: High pressure Raman investigations on hexachloroethane
Sign Up to like & getrecommendations! Published in 2017 at "Vibrational Spectroscopy"
DOI: 10.1016/j.vibspec.2017.04.002
Abstract: Abstract Traditional Fermi resonance is a vibrational mixing between a fundamental and a combinational or overtone mode. What will happen when the resonance occurs between a generated fundamental and an overtone mode? In this report,… read more here.
Keywords: double fermi; mode; fermi resonance; resonance ... See more keywords