Raman spectroscopic studies of zeolite framework. Hydrated Zeolite A and the influence of cations

Journal Article · Thu May 09 04:00:00 EDT 1985 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100256a008· OSTI ID:5133702

Dutta, P K; Del Barco, B

Raman spectra of hydrated zeolite A completely exchanged with Li/sup +/, Na/sup +/, K/sup +/, Tl/sup +/, and NH/sub 4//sup +/ ions are reported in this paper. The emphasis has been on the high-frequency region between 300 and 1200 cm/sup -1/, where the intramolecular modes of the aluminosilicate framework are expected. The Raman bands cluster in three regions of the spectrum: (a) 300-500 cm/sup -1/, assigned to T-O deformation modes; (b) 650-750 cm/sup -1/, assigned to Al-O stretching vibrations; and (c) 900-1100 cm/sup -1/, assigned to Si-O stretching motions. The Raman spectra of the ion-exchanged zeolites suggest that Li/sup +/ distorts the zeolite framework, whereas in Na/sup +/-, K/sup +/-, and Tl/sup +/-A, the zeolite structure remains unchanged. In NH/sub 4/-A, there is strong spectroscopic evidence for H-bond formation between the cation and the lattice oxygens. 31 references, 2 figures, 1 table.

• Research Organization: Ohio State Univ., Columbus
• OSTI ID: 5133702
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 89:10; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALI METALS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMMONIUM COMPOUNDS
CATIONS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL BONDS
CRYSTAL STRUCTURE
DATA
ELEMENTS
EXPERIMENTAL DATA
HYDRATES
HYDROGEN
INFORMATION
ION EXCHANGE
IONS
LASER SPECTROSCOPY
LITHIUM
METALS
MINERALS
NONMETALS
NUMERICAL DATA
OXIDE MINERALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POTASSIUM
RAMAN SPECTROSCOPY
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SODIUM
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
THALLIUM