A vibrational spectroscopic study of the silicate mineral pectolite – NaCa2Si3O8(OH)

Frost, Ray L., López, Andrés, Theiss, Frederick L., Romano, Antônio Wilson, & Scholz, Ricardo (2015) A vibrational spectroscopic study of the silicate mineral pectolite – NaCa2Si3O8(OH). Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 134, pp. 58-62.

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Abstract

The mineral pectolite NaCa2Si3O8(OH) is a crystalline sodium calcium silicate which has the potential to be used in plaster boards and in other industrial applications.

Raman bands at 974 and 1026 cm−1 are assigned to the SiO stretching vibrations of linked units of Si3O8 units. Raman bands at 974 and 998 cm−1 serve to identify Si3O8 units. The broad Raman band at around 936 cm−1 is attributed to hydroxyl deformation modes. Intense Raman band at 653 cm−1 is assigned to OSiO bending vibration. Intense Raman bands in the 2700–3000 cm−1 spectral range are assigned to OH stretching vibrations of the OH units in pectolite. Infrared spectra are in harmony with the Raman spectra. Raman spectroscopy with complimentary infrared spectroscopy enables the characterisation of the silicate mineral pectolite.

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ID Code: 73647
Item Type: Journal Article
Refereed: Yes
Keywords: Silicate, Raman spectroscopy, Pectolite, Infrared spectroscopy, Molecular structure
DOI: 10.1016/j.saa.2014.06.097
ISSN: 13861425
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 Elsevier B.V.
Copyright Statement: NOTICE: this is the author’s version of a work that was accepted for publication in Spectrochimica Acta Part A. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Spectrochimica Acta Part A, [Volume 134, (5 January 2015)] DOI: 10.1016/j.saa.2014.06.097
Deposited On: 10 Jul 2014 00:18
Last Modified: 02 Dec 2014 10:24

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