Probing solvation-shell hydrogen binding in glassy and sol-gel matrixes through vibronic sideband luminescence spectroscopy

Mahantesh S. Navati, Anandhi Ray, Jacob Shamir, Joel M. Friedman

Research output: Contribution to journalArticle

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Abstract

The luminescence spectrum from Gd(III) contains vibronic sidebands that provide the vibrational frequencies of molecules that comprise the solvation shell surrounding this cation. The vibronic sidebands obtained from Gd(III) in porous sol-gel matrixes as a function of added glycerol and in trehalose-derived glassy matrixes are used to probe matrix- and solvent-induced changes in the hydrogen bonding between first- and second-shell solvent molecules. The results provide direct insight into the origin of the damped dynamics observed for guest proteins within these types of matrixes. The results are also consistents with the retention of water within the first solvation shell for both the glassy matrixes and the glycerol-bathed sol-gel.

Original languageEnglish (US)
Pages (from-to)1321-1327
Number of pages7
JournalJournal of Physical Chemistry B
Volume108
Issue number4
Publication statusPublished - Jan 29 2004

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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