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Volumn 41, Issue 24, 2002, Pages 4734-4737

The structure of the peroxo species in the TS-1 catalyst as investigated by Resonant Raman spectroscopy

Author keywords

Charge transfer; Peroxides; Raman spectroscopy; Titanium; Zeolites

Indexed keywords

OXIDATION; RAMAN SCATTERING; REACTION KINETICS; RESONANCE; SALTS; SPECTROSCOPIC ANALYSIS; ZEOLITES;

EID: 0037122038     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200290032     Document Type: Article
Times cited : (157)

References (37)
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    • and references therein
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    • C. Li, G. Xiong, Q. Xin, J. Liu, P. Ying, Z. Feng, J. Li, W. Yang, Y. Wang, G. Wang, X. Liu, M. Lin, X. Wang, E. Min, Angew. Chem. 1999, 111, 2358-2360; Angew. Chem. Int. Ed. 1999, 38, 2220-2222.
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    • (Eds.: R. J. H. Clark, R. E. Hester), Heyden & Son, London
    • To help with further reading, we note briefly that resonant Raman spectroscopy is defined as a Raman experiment in which the exciting wavelength coincides with, or is near to, the wavelength of an electronic absorption of the sample. This condition guarantees a high transfer of energy to the sample. Moreover, the use of a UV exciting source also guarantees a significant reduction of the fluorescence background signal. If the electronic absorption involves a localized center, such as a transition-metal atom and its ligands in the nearest coordination shells, excitation is also partially localized and the vibrational features of the grouping of atoms constituted by the central ions and the surrounding ligands can be enhanced by several orders of magnitude, if they meet the appropriate enhancement selection rules. Two kinds of vibrations are enhanced: a) the vibrations which are totally symmetric with respect to the absorbing center, and b) the vibrational modes directly involving atoms that undergo the same molecular deformation induced by the electronic excitation. a) Y. Nishimura, A. Y. Hirakawa, M. Tsuboi in Advances in Infrared and Raman Spectroscopy (Eds.: R. J. H. Clark, R. E. Hester), Heyden & Son, London, 1978; b) P. R. Carey, Biochemical Applications of Raman and Resonance Raman Spectroscopies, Academic Press, New York, 1982, and references therein.
    • (1978) Advances in Infrared and Raman Spectroscopy
    • Nishimura, Y.1    Hirakawa, A.Y.2    Tsuboi, M.3
  • 23
    • 0003642869 scopus 로고
    • Academic Press, New York, and references therein
    • To help with further reading, we note briefly that resonant Raman spectroscopy is defined as a Raman experiment in which the exciting wavelength coincides with, or is near to, the wavelength of an electronic absorption of the sample. This condition guarantees a high transfer of energy to the sample. Moreover, the use of a UV exciting source also guarantees a significant reduction of the fluorescence background signal. If the electronic absorption involves a localized center, such as a transition-metal atom and its ligands in the nearest coordination shells, excitation is also partially localized and the vibrational features of the grouping of atoms constituted by the central ions and the surrounding ligands can be enhanced by several orders of magnitude, if they meet the appropriate enhancement selection rules. Two kinds of vibrations are enhanced: a) the vibrations which are totally symmetric with respect to the absorbing center, and b) the vibrational modes directly involving atoms that undergo the same molecular deformation induced by the electronic excitation. a) Y. Nishimura, A. Y. Hirakawa, M. Tsuboi in Advances in Infrared and Raman Spectroscopy (Eds.: R. J. H. Clark, R. E. Hester), Heyden & Son, London, 1978; b) P. R. Carey, Biochemical Applications of Raman and Resonance Raman Spectroscopies, Academic Press, New York, 1982, and references therein.
    • (1982) Biochemical Applications of Raman and Resonance Raman Spectroscopies
    • Carey, P.R.1
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    • note
    • -1.
  • 37
    • 85021435311 scopus 로고    scopus 로고
    • note
    • 2 evolution.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.