Abstract

The characteristic IR peak at 2230 cm^-1 (298 K) for the C ≡ N group in benzonitrile shows a modest shift with changing solvent. A solvent reaction field model (SCRF-MO) perturbation model applied earlier to carbonyl species was tested with the ῡ_max (C ≡ N) data for aprotic nonpolar, aprotic dipolar, aprotic highly dipolar, and aromatic liquids. For all the dielectric continuum functions tested as components in that model, there is evidence that solvent dipolarity and solvent polarizability are responsible for the nitrile band shift. However, as a solvent class, the aromatics exhibit a greater perturbation in ῡ_max(C ≡ N) than predicted by any of the continuum descriptions.

Enhancement of third-order nonlinear optical susceptibility of Alq₃ in polar aprotic solvents

Beata Derkowska-Zielinska
Opt. Lett. 42(3) 567-570 (2017)

Molecular polarizability investigation of polar solvents: water, ethanol, and acetone at terahertz frequencies using terahertz time-domain spectroscopy

Tianyao Zhang, Zhaohui Zhang, Xiaoyan Zhao, Can Cao, Yang Yu, Xingyue Li, Ying Li, Yan Chen, and Qing Ren
Appl. Opt. 59(16) 4775-4779 (2020)

Fluorescence-dip and stimulated-emission-pumping laser-induced-fluorescence spectra of van der Waals molecules containing benzonitrile

Masao Takayanagi and Ichiro Hanazaki
J. Opt. Soc. Am. B 7(9) 1898-1904 (1990)

Solvent effects on the nonlinear optical response of a potentiometric biological imaging dye

Haowen Li, Guilin Mao, Kenneth D. Singer, Zhikuan Lu, Ryan Weber, and Robert J. Twieg
J. Opt. Soc. Am. B 24(6) 1310-1318 (2007)

Temporal and polarization dependence of the nonlinear optical response of solvents

Peng Zhao, Matthew Reichert, Sepehr Benis, David J. Hagan, and Eric W. Van Stryland
Optica 5(5) 583-594 (2018)