A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2

Frost, Ray L., López, Andrés, Xi, Yunfei, Graça, Leonardo M., & Scholz, Ricardo (2014) A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2. Spectrochimica Acta Part A : Molecular and Biomolecular Spectroscopy, 132, pp. 833-837.

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Abstract

We have studied the mineral takedaite Ca3(BO3)2, a borate mineral of calcium using SEM with EDX and vibrational spectroscopy. Chemical analysis shows a homogeneous phase, composed of Ca. Boron was not detected. A very intense Raman band at 1087 cm−1 is assigned to the BO stretching vibration of BO3 units. Additional Raman bands may be due to isotopic splitting. In the infrared spectrum, bands at 1218 cm−1 and at 1163, 1262 and 1295 cm−1 are assigned to the trigonal borate stretching modes. Raman bands at 712 and 715 cm−1 are assigned to the in-plane bending modes of the BO3 units. Vibrational spectroscopy enables aspects of the molecular structure of takedaite to be assessed.

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ID Code: 73141
Item Type: Journal Article
Refereed: Yes
Keywords: Takedaite, Borate, Calcium, Raman spectroscopy, Infrared spectroscopy
DOI: 10.1016/j.saa.2014.06.004
ISSN: 1386-1425
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
Copyright Statement: This is the author’s version of a work that was accepted for publication in Spectrochimica Acta Part A : Molecular and Biomolecular Spectroscopy. 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 : Molecular and Biomolecular Spectroscopy, [VOL 132, (2014)] DOI: 10.1016/j.saa.2014.06.004
Deposited On: 30 Jun 2014 23:57
Last Modified: 02 Oct 2016 00:24

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