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题名: Hydrogen bond effect on the photophysical properties of 2-ureido-4[1H]-pyrimidinone quadruple hydrogen bonded systems
作者: Chen, Jun-Sheng1, 3, 4;  Zhao, Feng-Jiao1, 4;  Yang, Yang1;  Chu, Tian-Shu1, 2
刊名: RSC ADVANCES
发表日期: 2015
DOI: 10.1039/c5ra04005a
卷: 5, 期:46, 页:36279-36287
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: In this work, spectroscopic techniques and quantum chemistry calculations were used to investigate the photophysical properties of 2-ureido-4[1H]-pyrimidinone (UPy) systems in two different solvents of DMSO and DCM. The investigations were carried out on the three UPy systems (AnUP, NaUP and UPNa) with two different choromophores (i.e., anthracene and naphthalene) located at the head and the tail part of the UPy module. In DCM the UPy systems exist as the Keto-2 form that self assembles into a dimer through quadruple H-B arrays AADD-DDAA (solute-solute hydrogen bonds). In DMSO the UPy systems exist in the Keto-1 form which then forms a hydrogen bond complex with the solvent through solute-solvent interaction. The differences in excited state hydrogen bond dynamics and in configuration dynamical processes, account for the measured different fluorescence lifetimes and fluorescence quantum yields (FQY, Phi(F)) of the UPy systems studied in this work.
关键词[WOS]: PHOTOINDUCED ELECTRON-TRANSFER ;  SINGLET-ENERGY-TRANSFER ;  GAUSSIAN-BASIS SETS ;  ANISOTROPIC DIELECTRICS ;  PROTON-TRANSFER ;  BINDING MODULE ;  ATOMS LI ;  STATE ;  FLUORESCENCE ;  ASSEMBLIES
语种: 英语
WOS记录号: WOS:000353651200008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146230
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Qingdao Univ, Lab New Fiber Mat & Modern Text, Inst Computat Sci & Engn, Growing Base State Key Lab, Qingdao 266071, Peoples R China
3.Lund Univ, Dept Chem Phys, S-22100 Lund, Sweden
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Chen, Jun-Sheng,Zhao, Feng-Jiao,Yang, Yang,et al. Hydrogen bond effect on the photophysical properties of 2-ureido-4[1H]-pyrimidinone quadruple hydrogen bonded systems[J]. RSC ADVANCES,2015,5(46):36279-36287.
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