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Hansen BKV, Møller S, Spanget-Larsen J. The vibrational structure of (E,E')-1,4-diphenyl-1,3-butadiene Linear dichroism FT-IR spectroscopy and quantum chemical calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2006; 65:770-8. [PMID: 16531104 DOI: 10.1016/j.saa.2006.01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2005] [Revised: 01/04/2006] [Accepted: 01/05/2006] [Indexed: 05/07/2023]
Abstract
The title compound (DPB) was investigated by FT-IR spectroscopy in liquid solutions and by FT-IR linear dichroism (LD) measurements on samples aligned in stretched polyethylene. The LD data provided experimental assignments of molecular transition moment directions and vibrational symmetries for more than 40 vibrational transitions. The observed IR wavenumbers, relative intensities, and polarization directions were generally well reproduced by the results of a harmonic analysis based on B3LYP/cc-pVTZ density functional theory (DFT). The combined experimental and theoretical results led to proposal of a nearly complete assignment of the IR active fundamentals of DPB, involving reassignment of a number of transitions. In addition, previously published Raman spectra of DPB were well predicted by the B3LYP/cc-pVTZ calculations.
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Affiliation(s)
- Bjarke K V Hansen
- Department of Life Sciences & Chemistry, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
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Electron delocalization in mixed-valence butadienediyl-bridged diruthenium complexes. J Solid State Electrochem 2005. [DOI: 10.1007/s10008-005-0689-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Puranik M, Chandrasekhar J, Snijders JG, Umapathy S. Time-Resolved Resonance Raman and Density Functional Studies on the Ground State and Short-Lived Intermediates of Tetrabromo-p-benzoquinone. J Phys Chem A 2001. [DOI: 10.1021/jp0104987] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mrinalini Puranik
- Department of Inorganic and Physical Chemistry, Indian Institute Of Science, Bangalore - 560012, India, Department of Organic Chemistry, Indian Institute Of Science, Bangalore - 560012, India, and Theoretical Chemistry, Materials Science Centre, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Jayaraman Chandrasekhar
- Department of Inorganic and Physical Chemistry, Indian Institute Of Science, Bangalore - 560012, India, Department of Organic Chemistry, Indian Institute Of Science, Bangalore - 560012, India, and Theoretical Chemistry, Materials Science Centre, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Jaap G. Snijders
- Department of Inorganic and Physical Chemistry, Indian Institute Of Science, Bangalore - 560012, India, Department of Organic Chemistry, Indian Institute Of Science, Bangalore - 560012, India, and Theoretical Chemistry, Materials Science Centre, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Siva Umapathy
- Department of Inorganic and Physical Chemistry, Indian Institute Of Science, Bangalore - 560012, India, Department of Organic Chemistry, Indian Institute Of Science, Bangalore - 560012, India, and Theoretical Chemistry, Materials Science Centre, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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