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Laser flash photolysis of C-60-dexamethasone | |
Liu, RL(刘瑞丽); Zhao, HW(赵红卫); Zhang, ZX(张兆霞); Yao, SD(姚思德); Li, QN(李晴暖); Li, WX(李文新); Li, WX (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China | |
2007 | |
Source Publication | ACTA PHYSICO-CHIMICA SINICA
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ISSN | 1000-6818 |
Volume | 23Issue:7Pages:1127 |
Abstract | Laser flash photolysis technique was employed to characterize the triplet excited state behavior of C-60-dexamethasone (C-60-DE) in benzene. The time-resolved triplet-triplet (T-T) difference absorption spectrum of C-3(60)-DE * with optical excitation (355 nm laser pulse) was recorded. The spectrum of C-3(60)-DE * exhibited maxima at 700, 440, 350, and 310 nm. The bleaching maximum observed at 330 run coincides well with the ground-state maximum in this region. C-3(60)-DE * could be quenched by oxygen. Compared with C-3(60) *, the T-T annihilation rate constant of C-3(60)-DE * deduced ((5.03 +/- 1.31)x 10(9) L . mol(-1) . s(-1) for C-3(60) * and (3.53 +/- 0.87)x 10(9) L . mol(-1) . s(-1) for C-3(60)-DE *), and the life time of C-3(60)-DE * increased ((12.0 +/- 2.6) mu s for C-3(60) *, (18.0 +/- 3.3) mu s for C-3(60)-DE *). The reason may be that the connection of dexamethasone decreased the colliding probability of the C-60 ball. |
Keyword | C-60-dexamethasone Laser Flash Photolysis Excited Triplet State Annihilation Rate Constant Triplet Lifetime |
Subject Area | Physics |
Indexed By | sci |
Language | 英语 |
Funding Project | 应物所项目组 |
WOS ID | WOS:000248331200032 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.sinap.ac.cn/handle/331007/8096 |
Collection | 中科院上海应用物理研究所2004-2010年 |
Corresponding Author | Li, WX (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China |
Recommended Citation GB/T 7714 | Liu, RL,Zhao, HW,Zhang, ZX,et al. Laser flash photolysis of C-60-dexamethasone[J]. ACTA PHYSICO-CHIMICA SINICA,2007,23(7):1127. |
APA | Liu, RL.,Zhao, HW.,Zhang, ZX.,Yao, SD.,Li, QN.,...&Li, WX .(2007).Laser flash photolysis of C-60-dexamethasone.ACTA PHYSICO-CHIMICA SINICA,23(7),1127. |
MLA | Liu, RL,et al."Laser flash photolysis of C-60-dexamethasone".ACTA PHYSICO-CHIMICA SINICA 23.7(2007):1127. |
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