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Ab initio study of the circular intensity difference in electric-field-induced second harmonic generation of chiral natural amino acids
KTH, School of Biotechnology (BIO), Theoretical Chemistry and Biology.ORCID iD: 0000-0002-1763-9383
2013 (English)In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 15, no 4, 1198-1207 p.Article in journal (Refereed) Published
Abstract [en]

We present a systematic computational study of circular intensity difference (CID) in electric-field-induced second harmonic generation (EFISHG) of some representative chiral natural amino acids (Alanine, Arginine, Aspartic Acid, Cysteine and Tryptophan), taking into account the electric-dipole, electric-quadrupole and magnetic-dipole interactions. The calculations are performed by applying cubic response theory at both Hartree-Fock and Density Functional theory levels, the latter with the popular Becke-three parameters, Lee, Yang and Parr (B3LYP) functional. Special focus is given to the basis set, electron correlation and origin dependence of the properties. The full set of molecular parameters defined by Lam and Thirunamachandran in their reference theoretical paper published in 1982 [J. Chem. Phys., 1982, 77, 3810] is obtained and discussed. This permits the prediction of the CID observable for different possible experimental setups.

Place, publisher, year, edition, pages
2013. Vol. 15, no 4, 1198-1207 p.
Keyword [en]
Density-Functional Theory, Second-Harmonic Generation, Basis-Sets, Imaging Microscopy, Response Functions, Dichroism, Spectroscopy, Molecules, Systems, Atoms
National Category
Physical Chemistry
URN: urn:nbn:se:kth:diva-116422DOI: 10.1039/c2cp42792cISI: 000312462400018OAI: diva2:589930

QC 20130121

Available from: 2013-01-21 Created: 2013-01-18 Last updated: 2013-01-21Bibliographically approved

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