The molecular structure of the borate mineral inderite Mg(H4B3O7)(OH)-5H2O - a vibrational spectroscopic study.

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dc.contributor.authorFrost, Ray Leslie
dc.contributor.authorLópez, Andrés
dc.contributor.authorXi, Yunfei
dc.contributor.authorLima, Rosa Malena Fernandes
dc.contributor.authorCipriano, Ricardo Augusto Scholz
dc.contributor.authorGranja, Amanda
dc.date.accessioned2014-12-17T13:29:31Z
dc.date.available2014-12-17T13:29:31Z
dc.date.issued2013
dc.description.abstractWe have undertaken a study of the mineral inderite Mg(H4B3O7)(OH)_5H2O a hydrated hydroxy borate mineral of magnesium using scanning electron microscopy, thermogravimetry and vibrational spectroscopic techniques. The structure consists of ½B3O3ðOHÞ5_2_ soroborate groups and Mg(OH)2(H2O)4 octahedra interconnected into discrete molecules by the sharing of two OH groups. Thermogravimetry shows a mass loss of 47.2% at 137.5 _C, proving the mineral is thermally unstable. Raman bands at 954, 1047 and 1116 cm_1 are assigned to the trigonal symmetric stretching mode. The two bands at 880 and 916 cm_1 are attributed to the symmetric stretching mode of the tetrahedral boron. Both the Raman and infrared spectra of inderite show complexity. Raman bands are observed at 3052, 3233, 3330, 3392 attributed to water stretching vibrations and 3459 cm_1 with sharper bands at 3459, 3530 and 3562 cm_1 assigned to OH stretching vibrations. Vibrational spectroscopy is used to assess the molecular structure of inderite.pt_BR
dc.identifier.citationFROST, R. L. et al. The molecular structure of the borate mineral inderite Mg(H4B3O7)(OH)-5H2O - a vibrational spectroscopic study. Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, v. 116, p. 160-164, 2013. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1386142513007221>. Acesso em: 07 out. 2014.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.saa.2013.06.108
dc.identifier.issn1386-1425
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/4192
dc.language.isoen_USpt_BR
dc.rights.licenseO periódico  Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy  concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3487800419989.pt_BR
dc.subjectInderitept_BR
dc.subjectBoratept_BR
dc.subjectRaman spectroscopypt_BR
dc.subjectInfraredpt_BR
dc.subjectPinnoitept_BR
dc.titleThe molecular structure of the borate mineral inderite Mg(H4B3O7)(OH)-5H2O - a vibrational spectroscopic study.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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