A FT-IR absorption analysis of vibrational properties of water encaged in NaA zeolites: evidence of a "structure maker" role of zeolitic surface

V Crupi; D Majolino; P Migliardo; V Venuti; U Wanderlingh

doi:10.1140/epjed/e2003-01-014-4

A FT-IR absorption analysis of vibrational properties of water encaged in NaA zeolites: evidence of a "structure maker" role of zeolitic surface

Eur Phys J E Soft Matter. 2003 Nov:12 Suppl 1:S55-8. doi: 10.1140/epjed/e2003-01-014-4. Epub 2003 Nov 5.

Authors

V Crupi¹, D Majolino, P Migliardo, V Venuti, U Wanderlingh

Affiliation

¹ Physics Department & INFM, Messina University, C.da Papardo, S.ta Sperone 31, P.O. BOX 55, 98166 S. Agata, Messina, Italy.

PMID: 15011016
DOI: 10.1140/epjed/e2003-01-014-4

Abstract

We performed, in the O-H stretching region, Fourier-transform Infrared (FT-IR) Absorption measurements for investigating the vibrational dynamics on water confined in NaA zeolite, vs. temperature and for different hydration percentages. The spectral substructure of the O-H stretching band is explained postulating the existence of three major components centred at approximately 3290 cm(-1) (omega(1)), approximately 3470 cm(-1) (omega(2)), approximately 3590 cm(-1) (omega(3)), with different dynamical properties traced over the full T-range investigated.