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Article: Resonance Raman study of the A -band short-time photodissociation dynamics of 2,5-di-iodothiophene

TitleResonance Raman study of the A -band short-time photodissociation dynamics of 2,5-di-iodothiophene
Authors
Issue Date2008
PublisherAmerican Institute of Physics. The Journal's web site is located at http://jcp.aip.org/jcp/staff.jsp
Citation
Journal Of Chemical Physics, 2008, v. 129 n. 21, article no. 214506 How to Cite?
AbstractResonance Raman spectra were obtained for 2,5-di-iodothiophene in cyclohexane solution with excitation wavelengths in resonance with its A -band absorption. These spectra indicate that the Franck-Condon region photodissociation dynamics have multidimensional character with motion mostly along the nominal symmetric C2 C3 C4 C 5 stretch v2 (1388 cm-1) of the thienyl ring and this is accompanied by motions along the nominal symmetric CSC stretch v6 (640 cm-1), the nominal symmetric C-I stretch v 7 (187 cm-1), the nominal antisymmetric CSC stretch v 19 (728 cm-1), the nominal antisymmetric C'2 C3 C4 C5 stretch v16 (1497 c m-1), the nominal C3 C4 stretch v3 (1286 cm-1) and four other vibrational modes. A preliminary resonance Raman intensity analysis was done and the results for 2,5-di-iodothiophene were compared to previous results for 2-iodothiophene and di-iodomethane to discuss the mechanism of the symmetric breaking in the initial A -band photodissociation dynamics of 2,5-di-iodothiophene and 2-iodothiophene. © 2008 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/58369
ISSN
2015 Impact Factor: 2.894
2015 SCImago Journal Rankings: 0.959
ISI Accession Number ID
Funding AgencyGrant Number
National Basic Research Program of China2007CB815203
NSFC20573097
20703038
NSFZR405465
EYTP, MOE of China1918
Research Grants Council (RGC) of Hong KongHKU 7039/07P
Croucher Foundation
University of Hong Kong
Funding Information:

This work was supported by grants from the National Basic Research Program of China (2007CB815203), NSFC (Nos. 20573097 and 20703038), NSFZ (No. R405465), and EYTP, MOE of China (No. 1918) to X. M. and from the Research Grants Council (RGC) of Hong Kong (HKU 7039/07P) to D. L. P. D. L. P. thanks the Croucher Foundation for the award of a Croucher Foundation Senior Research Fellowship (2006-2007) and the University of Hong Kong for an Outstanding Researcher Award (2006).

References

 

DC FieldValueLanguage
dc.contributor.authorRuan, CBen_HK
dc.contributor.authorWang, HGen_HK
dc.contributor.authorZhu, HLen_HK
dc.contributor.authorZheng, Xen_HK
dc.contributor.authorPhillips, DLen_HK
dc.date.accessioned2010-05-31T03:29:06Z-
dc.date.available2010-05-31T03:29:06Z-
dc.date.issued2008en_HK
dc.identifier.citationJournal Of Chemical Physics, 2008, v. 129 n. 21, article no. 214506en_HK
dc.identifier.issn0021-9606en_HK
dc.identifier.urihttp://hdl.handle.net/10722/58369-
dc.description.abstractResonance Raman spectra were obtained for 2,5-di-iodothiophene in cyclohexane solution with excitation wavelengths in resonance with its A -band absorption. These spectra indicate that the Franck-Condon region photodissociation dynamics have multidimensional character with motion mostly along the nominal symmetric C2 C3 C4 C 5 stretch v2 (1388 cm-1) of the thienyl ring and this is accompanied by motions along the nominal symmetric CSC stretch v6 (640 cm-1), the nominal symmetric C-I stretch v 7 (187 cm-1), the nominal antisymmetric CSC stretch v 19 (728 cm-1), the nominal antisymmetric C'2 C3 C4 C5 stretch v16 (1497 c m-1), the nominal C3 C4 stretch v3 (1286 cm-1) and four other vibrational modes. A preliminary resonance Raman intensity analysis was done and the results for 2,5-di-iodothiophene were compared to previous results for 2-iodothiophene and di-iodomethane to discuss the mechanism of the symmetric breaking in the initial A -band photodissociation dynamics of 2,5-di-iodothiophene and 2-iodothiophene. © 2008 American Institute of Physics.en_HK
dc.languageengen_HK
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://jcp.aip.org/jcp/staff.jspen_HK
dc.relation.ispartofJournal of Chemical Physicsen_HK
dc.titleResonance Raman study of the A -band short-time photodissociation dynamics of 2,5-di-iodothiopheneen_HK
dc.typeArticleen_HK
dc.identifier.emailPhillips, DL:phillips@hku.hken_HK
dc.identifier.authorityPhillips, DL=rp00770en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1063/1.3026585en_HK
dc.identifier.scopuseid_2-s2.0-57349198120en_HK
dc.identifier.hkuros157178en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-57349198120&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume129en_HK
dc.identifier.issue21en_HK
dc.identifier.spagearticle no. 214506-
dc.identifier.epagearticle no. 214506-
dc.identifier.isiWOS:000261430900032-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridRuan, CB=25825732800en_HK
dc.identifier.scopusauthoridWang, HG=7501744689en_HK
dc.identifier.scopusauthoridZhu, HL=8712040400en_HK
dc.identifier.scopusauthoridZheng, X=7404090253en_HK
dc.identifier.scopusauthoridPhillips, DL=7404519365en_HK

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