Infrared and Raman spectroscopic characterization of the borate mineral colemanite CaB3O4(OH)3 H2O - implications for the molecular structure.

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dc.contributor.authorFrost, Ray Leslie
dc.contributor.authorXi, Yunfei
dc.contributor.authorCipriano, Ricardo Augusto Scholz
dc.contributor.authorBelotti, Fernanda Maria
dc.contributor.authorCândido Filho, Mauro
dc.date.accessioned2014-12-17T13:27:59Z
dc.date.available2014-12-17T13:27:59Z
dc.date.issued2013
dc.description.abstractColemanite CaB3O4(OH)3_H2O is a secondary borate mineral formed from borax and ulexite in evaporate deposits of alkaline lacustrine sediments. The basic structure of colemanite contains endless chains of interlocking BO2(OH) triangles and BO3(OH) tetrahedrons with the calcium, water and extra hydroxide units interspersed between these chains. The Raman spectra of colemanite is characterized by an intense band at 3605 cm_1 assigned to the stretching vibration of OH units and a series of bands at 3182, 3300, 3389 and 3534 cm_1 assigned to water stretching vibrations. Infrared bands are observed in similar positions. The BO stretching vibrations of the trigonal and tetrahedral boron are characterized by Raman bands at 876, 1065 and 1084 cm_1. The OBO bending mode is defined by the Raman band at 611 cm_1. It is important to characterize the very wide range of borate minerals including colemanite because of the very wide range of applications of boron containing minerals.pt_BR
dc.identifier.citationFROST, et al. Infrared and Raman spectroscopic characterization of the borate mineral colemanite CaB3O4(OH)3 H2O - implications for the molecular structure. Journal of Molecular Structure, v. 1037, p. 23-28, 2013. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0022286012010885>. Acesso em: 07 out. 2014.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.molstruc.2012.11.047
dc.identifier.issn0022-2860
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/4189
dc.language.isoen_USpt_BR
dc.rights.licenseO periódico Journal of Molecular Structure concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3490330427922.pt_BR
dc.subjectRaman spectroscopypt_BR
dc.subjectColemanitept_BR
dc.subjectInfrared spectroscopypt_BR
dc.subjectBoratept_BR
dc.subjectEvaporitept_BR
dc.titleInfrared and Raman spectroscopic characterization of the borate mineral colemanite CaB3O4(OH)3 H2O - implications for the molecular structure.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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