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dc.contributor.authorDe La Pierre, Marco
dc.contributor.authorDemichelis, Raffaella
dc.contributor.authorWehrmeister, U.
dc.contributor.authorJacob, D.
dc.contributor.authorRaiteri, Paolo
dc.contributor.authorGale, Julian
dc.contributor.authorOrlando, R.
dc.date.accessioned2017-01-30T15:24:38Z
dc.date.available2017-01-30T15:24:38Z
dc.date.created2014-11-30T20:00:31Z
dc.date.issued2014
dc.identifier.citationDe La Pierre, M. and Demichelis, R. and Wehrmeister, U. and Jacob, D. and Raiteri, P. and Gale, J. and Orlando, R. 2014. Probing the Multiple Structures of Vaterite through Combined Computational and Experimental Raman Spectroscopy. The Journal of Physical Chemistry C. 118: pp. 27493-27501.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/46002
dc.identifier.doi10.1021/jp509958d
dc.description.abstract

First-principles Raman spectra have been computed for several new vaterite structural models that have been recently proposed, and compared with spectra recorded on a set of biogenic, geological and synthetic samples. This set includes new measurements collected on Herdamania momus spicules (Great Barrier Reef, Queensland, Australia), which are known to have purity and crystallinity that are higher than for other biogenic samples. Overall, due to the close structural connection between the various models, the computed Raman spectra are found to be broadly similar. However, the spectra obtained for the two most stable models (monoclinic C2 and trigonal P3221, corresponding to two different polytypes of vaterite) exhibit features that are in excellent agreement with the experimental spectra, whereas the other theoretical structures show minor peaks that are not observed experimentally. When comparing the spectra for the two lowest energy structural models (C2 and P3221), the differences are too small to discriminate between these candidates. The Raman spectrum of Herdamania momus is of higher quality with respect to spectra obtained in previous studies on other biogenic samples. However, there is no significant and systematic difference with respect to samples of geological and synthetic origin.

dc.publisherAmerican Chemical Society
dc.titleProbing the Multiple Structures of Vaterite through Combined Computational and Experimental Raman Spectroscopy
dc.typeJournal Article
dcterms.source.volume118
dcterms.source.startPage27493
dcterms.source.endPage27501
dcterms.source.issn1932-7447
dcterms.source.titleThe Journal of Physical Chemistry C
curtin.note

This research was supported under Australian Research Council Grants: Funding through Discovery DP0986999, Future Fellowships FT120100462 and FT130100463.

curtin.note

This document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://doi.org/10.1021/jp509958d, see http://pubs.acs.org/page/policy/articlesonrequest/index.html

curtin.departmentDepartment of Applied Chemistry
curtin.accessStatusOpen access


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