Ultrafast dynamics of pyrene excimer formation in Y zeolites

被引：15

作者：

Cheng, KAWY ^{[1
]}

Schepp, NP ^{[1
]}

Cozens, FL ^{[1
]}

机构：

[1] Dalhousie Univ, Dept Chem, Halifax, NS B3H 4J3, Canada

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2004年 / 108卷 / 35期

关键词：

D O I：

10.1021/jp046935+

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Pyrene excimer emission in alkali-metal-exchanged zeolites is readily observed to grow in using an ultrafast streak camera with 3.3 ps time-resolution. Rise-time constants range from 7 to 14 ps depending on the composition of the zeolite. These results show that two pyrene molecules in doubly occupied cavities must move from their pre-excitation orientation into the face-to-face orientation required for the excimer.

引用

页码：7132 / 7134

页数：3

共 29 条

[1] EXCIMER FLUORESCENCE .2. LIFETIME STUDIES OF PYRENE SOLUTIONS
BIRKS, JB
MUNRO, IH
DYSON, DJ
[J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1963, 275 (1360) : 575 - +
[2] Breck D.W., 1964, J CHEM EDUC, V41, P678, DOI [10.1021/ed041p678, DOI 10.1021/ED041P678]
[3] Breck D. W., 1973, Zeolite Molecular Sieves: Structure, Chemistry, and Use
[4] Intrazeolite photochemistry .15. Influence of aging, inert gases, and water on the mobility of pyrene molecules on the faujasite NaY
Cozens, FL
Regimbald, M
Garcia, H
Scaiano, JC
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (46) : 18165 - 18172
[5] DYER A, 1988, INTR ZEOLITE MOL SIE
[6] THE CLUSTERING REACTIONS OF BENZENE WITH SODIUM AND LEAD IONS
GUO, BC
PURNELL, JW
CASTLEMAN, AW
[J]. CHEMICAL PHYSICS LETTERS, 1990, 168 (02) : 155 - 160
[7] Fluorescence spectroscopic studies of anthracene adsorbed into zeolites:: From the detection of cation-π interaction to the observation of dimers and crystals
Hashimoto, S
Ikuta, S
Asahi, T
Masuhara, H
[J]. LANGMUIR, 1998, 14 (15) : 4284 - 4291
[8] A theoretical study on the conformations, energetics, and solvation effects on the cation-π interaction between monovalent ions Li+, Na+, and K+ and naphthalene molecules
Hashimoto, S
Ikuta, S
[J]. JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, 1999, 468 (1-2): : 85 - 94
[9] Diffuse reflectance laser photolytic studies of pyrene included in zeolites - Formation of pyrene anion radicals via excited-state electron transfer between guest molecules
Hashimoto, S
[J]. CHEMICAL PHYSICS LETTERS, 1996, 252 (3-4) : 236 - 242
[10] A theoretical study on the conformations and energetics on the cation-π interaction between monovalent ions (M+ = Li+, Na+, and K+) and anthracene and phenanthrene molecules
Ikuta, S
[J]. JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, 2000, 530 (1-2): : 201 - 207

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