QUT ePrints

Electronic and vibrational spectra of Mn rich sursassite

Frost, Ray L., Palmer, Sara J., & Reddy, B. Jagannadha (2007) Electronic and vibrational spectra of Mn rich sursassite. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 66(2), pp. 312-317.

View at publisher

Abstract

The optical spectrum of Mn2+ in octahedral coordination for sursassite is characterized by well resolved bands at 580, 515, 470, 390, 340, and 295 nm (17240, 19420, 21280, 25640, 29410 and 33900 cm-1). Crystal field parameters evaluated from the observed bands are Dq = 690, B = 680 and C = 2800 cm-1. A broad band centred around 13000 cm-1 attributed to Fe(III) ion is an impurity in sursassite confirmed from EDX analysis. Vibrational spectra have been investigated both by IR and Raman spectroscopy. The correlation between vibrational modes and the structural properties of the manganese silicate, sursassite, is made and compared with other silicates. Two vibrational modes of CO32- observed; the antisymmetric stretching mode (○3) at 1420 cm-1 (IR active) and the out-of-plane bending mode ( ○2) (IR and Raman active) at ~875 cm-1. This confirms the Mn rich phases in sursassite as observed from SEM probably a Mn carbonate-rhodochrosite.

Impact and interest:

13 citations in Scopus
Search Google Scholar™
12 citations in Web of Science®

Citation countsare sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

Full-text downloads:

304 since deposited on 01 Feb 2007
25 in the past twelve months

Full-text downloadsdisplays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.

ID Code: 6047
Item Type: Journal Article
Keywords: XRD and SEM analyses, UV, Vis and NIR spectroscopy, sursassite, Mn(II) distorted octahedral symmetry, overtone and combination bands, layered silicates, vibrational spectroscopy
DOI: 10.1016/j.saa.2006.02.058
ISSN: 1386-1425
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2007 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 01 Feb 2007
Last Modified: 06 May 2014 09:44

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page