A Raman spectroscopic study of indolinium steryl dyes |
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| Affiliation: | 1. State Key Laboratory of Radio Frequency Heterogeneous Integration, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronics Engineering, Shenzhen University, Shenzhen, 518060, China;2. Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong;3. Department of Bioengineering and COMSET, Clemson University, Clemson, SC, 29634, USA;1. Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208-3112, USA;2. LadHyX, UMR CNRS 7646, École Polytechnique, 91128 Palaiseau CEDEX, France;1. Department of Chemistry & IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany;2. Theoretische Chemie, Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Straße 24–25, 14476 Potsdam-Golm, Germany;1. Department of Chemistry, Ludwig Maximilian University of Munich, Munich, Germany;2. Department of Chemistry, University of Zurich, Zurich, Switzerland;3. Cellular and Molecular Biophysics Department, Max Planck Institute of Biochemistry, Martinsried, Germany;4. Institute for Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland;5. Vollum Institute, Oregon Health & Science University, Portland, Oregon;6. Department of Chemistry, New York University, New York City, New York;1. Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, 601 74 Norrköping, Östergötland, Sweden;2. Wallenberg Wood Science Center, Linköping University, 601 74 Norrköping, Östergötland, Sweden;3. Department of Electro-Optical Systems, FOI-Swedish Defense Research Agency, 583 30 Linköping, Östergötland, Sweden |
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| Abstract: | ![]()
Resonance Raman spectra have been obtained in the region 400–1700 cm−1 for several indolinium steryl dyes under various experimental conditions. The changes in vibrational frequencies have been correlated with changes in the UV—vis absorption maxima observed previously and which are due to solvent polarity variations, the complexation of the dye molecules containing a crown ether ring with Mg2+, and the variations in molecular structure. Preliminary assignments of the observed bands to particular vibrations are made. |
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