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Kang C, Korter TM, Pratt DW. Experimental measurement of the induced dipole moment of an isolated molecule in its ground and electronically excited states: indole and indole-H2O. J Chem Phys. 2005;122(17):174301doi: 10.1063/1.1883635.
Kang, C., Korter, T. M., & Pratt, D. W. (2005). Experimental measurement of the induced dipole moment of an isolated molecule in its ground and electronically excited states: indole and indole-H2O. The Journal of chemical physics, 122(17), 174301. https://doi.org/10.1063/1.1883635
Kang, Cheolhwa, et al. "Experimental measurement of the induced dipole moment of an isolated molecule in its ground and electronically excited states: indole and indole-H2O." The Journal of chemical physics vol. 122,17 (2005): 174301. doi: https://doi.org/10.1063/1.1883635
Kang C, Korter TM, Pratt DW. Experimental measurement of the induced dipole moment of an isolated molecule in its ground and electronically excited states: indole and indole-H2O. J Chem Phys. 2005 May 01;122(17):174301. doi: 10.1063/1.1883635. PMID: 15910026.
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J Chem Phys. 2005 May 01;122(17):174301. doi: 10.1063/1.1883635.

Experimental measurement of the induced dipole moment of an isolated molecule in its ground and electronically excited states: indole and indole-H2O.

The Journal of chemical physics

Cheolhwa Kang, Timothy M Korter, David W Pratt

Affiliations

  1. Department of Chemistry, University of Pittsburgh, Pennsylvania 15260, USA.

PMID: 15910026 DOI: 10.1063/1.1883635

Abstract

Reported here are measurements of the magnitude and orientation of the induced dipole moment that is produced when an indole molecule in its ground S(0) and electronically excited S(1) states is polarized by the attachment of a hydrogen bonded water molecule in the gas phase complex indole-H(2)O. For the complex, we find the permanent dipole moment values mu(IW)(S(0)) = 4.4 D and mu(IW)(S(1)) = 4.0 D, values that are substantially different from calculated values based on vector sums of the dipole moments of the component parts. From this result, we derive the induced dipole moment values mu(I) (*)(S(0)) = 0.7 D and mu(I) (*)(S(1)) = 0.5 D. The orientation of the induced moment also is significantly different in the two electronic states. These results are quantitatively reproduced by a purely electrostatic calculation based on ab initio values of multipole moments.

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