Abstract
Time-resolved near-IR phosphorescence spectroscopy was employed to determine the lifetime of singlet oxygen in Y-zeolites and porous silica and it was found to depend strongly on the alumina content of the zeolite.
This is a preview of subscription content, log in via an institution to check access.
References
D. W. Breck, Zeolite Molecular Sieves, R. E. Krieger, Malabar, FL, 1984.
A. Dyer, An Introduction to Zeolite Molecular Sieves, Wiley, New York, 1988.
H. Van Bekkum, E. M. Flaningen, and J. C. Jansen, Introduction to Zeolite Science and Practice, Elsevier, Amsterdam, 1991.
E. L. Clennan, Molecular Oxygenation in Zeolites, Mol. Supramol. Photochem., 2003, 9, 275–308.
S. Vasenkov and H. Frei, Photooxidation in Zeolites, Mol. Supramol. Photochem., 2000, 5, 295–323.
C.-H. Tung, L.-Z. Wu, L.-P. Zhang, H.-R. Li, X.-Y. Yi, K. Song, M. Xu, Z.-Y. Yuan, J. Q. Guan, H.-W. Wang, Y.-M. Ying and X.-H. Xu, Microreactor-controlled Selectivity in Organic Photochemical Reactions, Pure Appl. Chem., 2000, 72, 2289–2298.
J. Shailaja, J. Sivaguru, R. J. Robbins, V. Ramamurthy, R. B. Sunoj and J. Chandrasekhar, Singlet Oxygen Mediated Oxidation of Olefins within Zeolites: Selectivity and Complexities, Tetrahedron, 2000, 56, 6927–6943.
M. Stratakis, D. Kalaitzakis, D. Stavroulakis, G. Kosmas and C. Tsangarakis, Remarkable Change of the Diastereoselection in the Dye-Sensitized Ene Hydroperoxidation of Chiral Alkenes by Zeolite Confinement, Org. Lett., 2003, 5, 3471–3474.
E. L. Clennan, J. P. Sram, A. Pace, K. Vincer and S. White, Intrazeolite Photooxidations of Electron-Poor Alkenes, J. Org. Chem., 2002, 67, 3975–3978.
C.-H. Tung, H. Wang and Y.-M. Ying, Photosensitized Oxidation of Alkenes Adsorbed on Pentasil Zeolites, J. Am. Chem. Soc., 1998, 120, 5179–5186.
X. Li, V. Ramamurthy, Selective Oxidation of Olefins within Organic Dye Cation-exchanged Zeolites, J. Am. Chem. Soc., 1996, 118, 10666–10667.
R. Schmidt and E. Afshari, Collisional Deactivation of O2 by Solvent Molecules. Comparative Experiments with 16O218O2, Ber. Bunsen-Ges. Phys. Chem., 1992, 96, 788–794.
A. Pace and E. L. Clennan, A New Experimental Protocol for Intrazeolite Photooxidations. The First Product-based Estimate of an Upper Limit for the Intrazeolite Singlet Oxygen Lifetime, J. Am. Chem. Soc., 2002, 124, 11236–11237.
N. J. Turro, Modern Molecular Photochemistry, University Science Books, Sausalito, CA, 1991.
J. Shailaja, P. H. Lakshminarasimhan, A. R. Pradhan, R. B. Sunoj, S. Jockusch, S. Karthikeyan, S. Uppili, J. Chandrasekhar and N. J. Turro, Alkali Ion-controlled Excited-state Ordering of Acetones Included in Zeolites: Emission, Solid-State NMR, and Computational Studies, J. Phys. Chem. A, 2003, 107, 3187–3198.
V. Ramamurthy, D. R. Sanderson and D. F. Eaton, Control of Dye Assembly within Zeolites: Role of Water, J. Am. Chem. Soc., 1993, 115, 10438–10439.
A. U. Khan and M. Kasha, Direct Spectroscopic Observation of Singlet Oxygen Emission at 1268 nm Excited by Sensitizing Dyes of Biological Interest in Liquid Solution, Proc. Natl. Acad. Sci. USA, 1979, 76, 6047–6049.
K. K. Iu and J. K. Thomas, Quenching of Singlet Molecular Oxygen (1ΔgO2) in Silica Gel/Cyclohexane Heterogeneous Systems. A Direct Time-resolved Study, J. Am. Chem. Soc., 1990, 112, 3319–3325.
K. K. Iu and J. K. Thomas, Quenching of Singlet Molecular Oxygen (1ΔgO2) in Silica Gel-solvent Heterogeneous Systems II. A Direct Time-resolved Study, J. Photochem. Photobiol., A, 1993, 71, 55–60.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Jockusch, S., Sivaguru, J., Turro, N.J. et al. Direct measurement of the singlet oxygen lifetime in zeolites by near-IR phosphorescence. Photochem Photobiol Sci 4, 403–405 (2005). https://doi.org/10.1039/b501701g
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1039/b501701g