Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1405691 | Journal of Molecular Structure | 2014 | 4 Pages |
Abstract
Tunellite is a strontium borate mineral with formula: SrB6O9(OH)2·3(H2O) and occurs as colorless crystals in the monoclinic pyramidal crystal system. An intense Raman band at 994 cmâ1 was assigned to the BO stretching vibration of the B2O3 units. Raman bands at 1043, 1063, 1082 and 1113 cmâ1 are attributed to the in-plane bending vibrations of trigonal boron. Sharp Raman bands observed at 464, 480, 523, 568 and 639 cmâ1 are simply defined as trigonal and tetrahedral borate bending modes. The Raman spectrum clearly shows intense Raman bands at 3567 and 3614 cmâ1, attributed to OH units. The molecular structure of a natural tunellite has been assessed by using vibrational spectroscopy.
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Authors
Ray L. Frost, Andrés López, Ricardo Scholz, Yunfei Xi,