Influence of electric reorientation of molecules on the rotational broadening of the spectra of rayleigh light scattering by small macromolecules in solution

Autor:	Władysław Alexiewicz, J. Buchert, Stanisław Kielich
Rok vydání:	2007
Předmět:	genetic structures business.industry Linear polarization Chemistry General Engineering Rotational diffusion Molecular physics Spectral line symbols.namesake Electric dipole moment Optics Polarizability symbols Rayleigh scattering Anisotropy business Debye
Zdroj:	Journal of Polymer Science: Polymer Symposia. 61:179-186
ISSN:	1936-0959 0360-8905
DOI:	10.1002/polc.5070610120
Popis:	Spectral line broadening of Rayleigh scattered light in the presence of weak molecular reorientation is calculated by Racah algebra using the Debye rotational diffusion approximation. It is shown that if the incident beam is linearly polarized, the polarized and depolarized scattered components are superpositions of the well known Lorentzian, typical for free rotational diffusion, and non-Lorentzian lines with intensities dependent on the reorientation parameters of the permanent and induced electric dipoles of the macromolecules. The measurement of electrically induced changes in peak intensity is proposed as a method for determining the sign of the optical polarizability anisotropy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::775f4b702f9ba0cafa0353aa0ec2ccd2 https://doi.org/10.1002/polc.5070610120 Zobrazit plný text záznamu