Raman spectroscopic study of the antimonate mineral bottinoite Ni[Sb2(OH)12].6H2O and in comparison with brandholzite Mg[Sb5+2(OH)12]•6H2O


Autoria(s): Frost, Ray L.; Bahfenne, Silmarilly
Data(s)

10/10/2010

Resumo

Raman spectra of bottinoite Ni[Sb(OH)6].6H2O were studied, and related to the molecular structure of the mineral. An intense sharp Raman band at 618 cm-1 is attributed to the SbO symmetric stretching mode. The low intensity band at 735 cm-1 is ascribed to the SbO antisymmetric stretching vibration. Low intensity Raman bands were found at 501, 516 and 578 cm-1. Four Raman bands observed at 1045, 1080, 1111 and 1163 cm-1 are assigned to δ SbOH deformation modes. A complex pattern resulting from the overlapping band of the water and hydroxyl units is observed. Raman bands are observed at 3223, 3228, 3368, 3291, 3458 and 3510 cm-1. The first two Raman bands are assigned to water stretching vibrations. The two higher wavenumber Raman bands observed at 3466 and 3552 cm-1 and two infrared bands at 3434 and 3565 cm-1 are assigned to the stretching vibrations of the hydroxyl units. Observed Raman and infrared bands are connected with O-H…O hydrogen bonds and their lengths 2.72, 2.79, 2.86, 2.88 and 3.0 Å (Raman) and 2.73, 2.83 and 3.07 Å (infrared).

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/37842/

Publicador

John Wiley & Sons

Relação

http://eprints.qut.edu.au/37842/1/c37842.pdf

DOI:10.1002/jrs.2569

Frost, Ray L. & Bahfenne, Silmarilly (2010) Raman spectroscopic study of the antimonate mineral bottinoite Ni[Sb2(OH)12].6H2O and in comparison with brandholzite Mg[Sb5+2(OH)12]•6H2O. Journal of Raman Spectroscopy, 41(10), pp. 1353-1356.

Direitos

Copyright 2010 John Wiley & Sons

Fonte

Chemistry; Faculty of Science and Technology

Palavras-Chave #030606 Structural Chemistry and Spectroscopy #bottinoite, brandholzite, antimonate, antimonite, molecular water, Raman, infrared, spectroscopy
Tipo

Journal Article