Probing Two-Photon Properties of Molecules: Large Non-Condon Effects Dominate the Resonance Hyper-Raman Scattering of Rhodamine 6G.
Experimentally measured resonance hyper-Raman (RHR) spectra spanning the S ←S, S ← S, and S ← S transitions in rhodamine 6G (R6G) have been recorded. These spectra are compared to the results of first-principles calculations of the RHR intensity that include both Franck-Condon (A-term) and non-Condo...
| Published in: | Journal of the American Chemical Society Vol. 133; no. 37; pp. 14590 - 14593 |
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| Main Authors: | , , , |
| Format: | Article |
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American Chemical Society
9/21/2011
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=66701874&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 66701874 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 9/21/2011 vid: 133 iid: 37 pid: 997 pub: American Chemical Society artinfo: ui: 66701874 10.1021/ja2054622 ppf: 14590 ppct: 3 formats: tig: atl: Probing Two-Photon Properties of Molecules: Large Non-Condon Effects Dominate the Resonance Hyper-Raman Scattering of Rhodamine 6G. aug: au: Milojevich, Chris B. Silverstein, Daniel W. Jensen, Lasse Camden, Jon P. affil: Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600, United States Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, United States su: Multiphoton processes Raman effect Mesomerism Franck-Condon principle Spectrum analysis sug: subj: Multiphoton processes Raman effect Mesomerism Franck-Condon principle Spectrum analysis ab: Experimentally measured resonance hyper-Raman (RHR) spectra spanning the S ←S, S ← S, and S ← S transitions in rhodamine 6G (R6G) have been recorded. These spectra are compared to the results of first-principles calculations of the RHR intensity that include both Franck-Condon (A-term) and non-Condon (B-term) scattering effects. Good agreement between the experimental and theoretical results is observed, demonstrating that first-principles calculations of hyper-Raman intensities are now possible for large molecules such as R6G. Such agreement indicates that RHR spectroscopy will now be a routine aid for probing multiphoton processes. This work further shows that optimization of molecular properties to enhance either A- or B-term scattering might yield molecules with significantly enhanced two-photon properties. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2011 holdings: @attributes: islocal: N |
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