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Vibrational Stark effect: Theoretical determination through the semiempirical AM1 method

✍ Scribed by Josep Martí; Agustí Lledós; Juan Bertrán; Miquel Duran

Book ID
102880732
Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
836 KB
Volume
13
Category
Article
ISSN
0192-8651

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✦ Synopsis

The vibrational Stark effect of a series of small molecules has been calculated by means of the semiempirical AM1 method through addition of the electron-field interaction term in the one-electron Hamiltonian. Optimized geometrical parameters along with harmonic frequencies and line intensities are determined for different strengths of the applied uniform electric field. The perturbed spectra are compared with theoretical studies carried out at the ab initio level and with experimental results. The vibrational Stark effect of the retinal molecule is also computed, showing that this kind of study is feasible in systems of biochemical interest. 0 1992 by John Wiley & Sons, Inc. *A contribution from the "Grup de Quimica Quantica de 1%stitut d'Estudis Catalans

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