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Abstract

The C≡N stretching frequency, vC≡N, is affected by change in the solvent and also by change in concentration in the same solvent. In the case of acetonitrile, vC≡N is in Fermi resonance with the combination tone (δ_sym. CH₃ + vC-C), and the degree of Fermi resonance interaction changes with change in the solvent. With the exception of dimethyl sulfoxide, unperturbed vC≡N for acetonitrile exhibits a pseudo-linear correlation with the acceptor number of the solvent.

Keywords

Infrared Solvent effects Fermi resonance with CN stretching

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References

Wohar

M. M.

Seehra

J. K.

and Jagodzinski

P. W

, Spectrochim. Acta 44A, 999 (1988).

Dollish

F. R.

Fateley

W. G.

and Bentley

F. F

, Characteristic Raman Frequencies of Organic Compounds (John Wiley and Sons, New York, 1974), p. 359.

Standard Raman Spectra (Sadtler Research Laboratories, Philadelphia, 1973), Vol. I, 154R.

Langseth

and Lord

R. C

, Kgl. Danske, Videnskab, Selskab Mat.-fys. 16, 6 (1938).

Nyquist

R. A.

, Appl. Spectrosc. 43, 1208 (1989).

Nyquist

R. A.

Putzig

C. L.

and Yurga

, Appl. Spectrosc. 43, 983 (1989).

Bellamy

L. J.

, The Infrared Spectra of Complex Molecules (Halsted Press, a Division of John Wiley and Sons, New York, 1975), 3rd ed. Vol. I, p. 295.

Solvent-Induced Nitrile Frequency Shifts: Acetonitrile and Benzonitrile

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