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Raman spectroscopic study of the Chromobacterium violaceum pigment violacein using multiwavelength excitation and DFT calculations

dc.contributor.authorJehlička, J.*
dc.contributor.authorEdwards, Howell G.M.*
dc.contributor.authorNemec, I.*
dc.contributor.authorOren, A.*
dc.date.accessioned2016-09-21T17:17:34Z
dc.date.available2016-09-21T17:17:34Z
dc.date.issued2015
dc.identifier.citationJehlicka J, Edwards HGM, Nemec I et al (2015) Raman spectroscopic study of the Chromobacterium violaceum pigment violacein using multiwavelength excitation and DFT calculations. Spectrochimica Acta A: Molecular and Biomolecular Spectroscopy. 151: 459-467.
dc.identifier.urihttp://hdl.handle.net/10454/9363
dc.descriptionNo
dc.description.abstractViolacein is a bisindole pigment occurring as a biosynthetic product of Chromobacterium violaceum and Janthinobacterium lividum. It has some structural similarities to the cyanobacterial UV-protective pigment scytonemin, which has been the subject of comprehensive spectroscopic and structural studies. A detailed experimental Raman spectroscopic study with visible and near-infrared excitation of violacein produced by C. violaceum has been undertaken and supported using theoretical DFT calculations. Raman spectra with 514 and 785 nm excitation of cultivated cells as well as extracts and Gaussian (B3LYP/6-311++G(d,p)) calculations with proposed molecular vibrational assignments are reported here.
dc.language.isoen
dc.subjectCyanobacteria
dc.subjectDFT calculations
dc.subjectRaman spectroscopy
dc.subjectUV protective pigment
dc.titleRaman spectroscopic study of the Chromobacterium violaceum pigment violacein using multiwavelength excitation and DFT calculations
dc.status.refereedYes
dc.typeArticle
dc.type.versionNo full-text in the repository
dc.identifier.doihttps://doi.org/10.1016/j.saa.2015.06.051
dc.openaccess.statusclosedAccess


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