期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

硒吩电子激发和光解动力学研究 被引量：2

Study of Electron Excitation and Photodissociation Dynamics of Selenophene
下载PDF
导出
摘要 获得了硒吩在环己烷溶液中的共振拉曼光谱,结果表明,在Franck-Condon区域内,硒吩的激发态结构动力学主要由7个活性振动模组成。不对称C-Se伸缩振动模υ21的出现,表明在S1(21A1)态时硒吩两个C-Se键发生了不同程度键长变化,其中一个C-Se键显著伸长,而另一个C-Se键变化不大。与噻吩光解离动力学比较发现,硒吩的动力学行为与噻吩十分相似,预示硒吩可能在S1(21A1)态时与某个非绝热单重态Sn(1B1)存在锥形交叉,导致硒吩在Franck-Condon区域发生C-Se键断裂而解离。 The authors obtain the 252.7 nm resonance raman spectrum of selenophene in cyclohexane solution.The results indicate that the Franck-Condon region short-time photodissociation dynamics of selenophene have multidimensional characters with motion along the 7 vibration modes.The appearance of the nominal C-Se anti-symmetric stretch ＋C-C=C bend mode v21 at 631 cm-1 suggests that selenophene molecule in the S1 state undergoes large bond length changes along the two C-Se bond lengths with one C-S bond becoming much longer while the other becomes somewhat shorter.Compared with thiophene,the dynamic behavior of selenophene is very similar to thiophene.This suggests that a ring opening reaction may occur in or nearby the Franck-Condon region due to a curve crossing between S1 and Sn state.
作者 伍贤方 魏松林 郑旭明
机构地区 浙江理工大学理学院
出处 《浙江理工大学学报（自然科学版）》 2010年第5期860-864,共5页 Journal of Zhejiang Sci-Tech University(Natural Sciences)
基金 国家自然科学基金资助项目(20573097) 浙江省自然科学基金资助项目(R405465)
关键词 硒吩 共振拉曼光谱 光解动力学 selenophene resonance raman spectrum photodissociation dynamics
分类号 O643.12 [理学—物理化学]
  • 相关文献

参考文献16

  • 1Kataev E G,Palkina M V.Acylation of selenophene and itshomologs[J].Khim,1953,113(8):115-123.
  • 2Mohanakrishnan A K,Senthil Kumar N,Amaladass P.Synthesis and characterization of 9,9-dialkylfluorene capped benzo[c]thiophene/benzo[c]selenophene analogs as potential OLEDs[J].Tetrahedron Letters,2008,49:4792-4795.
  • 3Nakayama J,Dong H B,Sawada K,et al.Synthesis and characterization of dimers,trimers,and tetramers of 3,6-Dimethylthieno[3,2-b]thiophene and 3,6-Dimethyiselenolo[3,2-b]selenophene[J].Tetrahedron,1996,52:471-488.
  • 4Shigehara K,Hara M,Yamada A.Anisotropic electronic conduction of nafion-conducting polymer hybrids[J].Synth Met,1987,18:721-724.
  • 5秦春生,杨国春,苏忠民,朱玉兰,周子彦.呋喃同系物C_4H_4X(X=O,S,Se,Te)非线性光学性质的TDDFT-SOS理论研究[J].高等学校化学学报,2005,26(2):290-293. 被引量：4
  • 6Pola J,Bastl Z,Subrt J,et al.Chemical vapour deposition of selenium and tellurium films by UV laser photolysis of selenophene and tellurophene[J].Appl Organometal Chem,2000,14:715-720.
  • 7Trombetti A,Zauli C.Molecular spectra and structure of selenophen[J].J Chem Soc:A,1967:1106-1111.
  • 8Powis I,Zaytseva I L,Trofimov A B,et al.A study of the valence shell electronic structure and photoionization dynamics of selenophene[J].J Phys B:At Mol Opt Phys,2007,40:2019-2041.
  • 9Kupka T,Wrzalik R,Pasterna G,et al.Theoretical DFT and experimental Raman and NMR studies on thiophene,3-methylthiophene and selenophene[J].Journal of Molecular Structure,2002,616:17-32.
  • 10Aqad E,Lakshmikantham M P,GaVa M P.Synthesis of 3,4-ethyleuedioxyselenophene(EDOS):a novel building block for electron-rich-conjugated polymers[J].Org Lett,2001,3:4283-4285.

二级参考文献17

  • 1Varanasi P. R, Jen A. K. Y, Chandrasekhar J. et al. J. Am. Chem. Soc.[J]. 1996, 118: 12443-12448
  • 2Barlow S, Bunting H. E, Ringham C. et al. J. Am. Chem. Soc.[J]. 1999, 121: 3715-3723
  • 3Su Z. M, Hu L. H, Qiu Y. Q. et al. Synth. Met.[J]. 2001, 119: 577-578
  • 4Cundari T. R, Kurtz H. A, Zhou T. J. Phys. Chem. A[J]. 2000, 104: 4711-4717
  • 5Su Z. M, Wang X. J, Huang Z. H. et al. Synth. Met.[J]. 2001, 119: 583-584
  • 6Kamada K, Ueda M, Sakaguchi T. et al. Chem. Phys. Lett.[J]. 1996, 249: 329-334
  • 7Kamada K, Ueda M, Ohta K. et al. J. Chem. Phys.[J]. 1998, 109: 10948-10957
  • 8Kamada K, Sugino T, Ueda M. et al. Chem. Phys. Lett.[J]. 1999, 302: 615-620
  • 9Suzuki H, Nakamura T, Ohta K. et al. J. Org. Chem.[J]. 1995, 60: 5274-5278
  • 10Kamada K, Ueda M, Ohta K. et al. J. Phys. Chem. A[J]. 2000, 104: 4723-4734

共引文献3

同被引文献48

  • 1Patra A, Bendikov M. J Mater Chem, 2010, 20: 422-433.
  • 2Bezoari M D, Kovacic P, Gronowitz S, H6rnfedt A B. J Polym Sci, 1981, 19:347-353.
  • 3Pu S Z, Hou J, Xu J K, Nie G M, Zhang S S, Shen L, Xiao Q. Mater Lett, 2005, 59:1061-1065.
  • 4Dong B, Xing Y H, Xu J K, Zheng L Q, Hou J, Zhao F. Electrochim Acta, 2008, 53:5745-5751.
  • 5Ballantyne A M, Chen L C, Nelson J, Bradley D D C, Astuti Y, Maurano A, Shuttle C G, Durrant G R, Heeney M, Duffy M, McCulloch I. Adv Mater, 2007. 19:4544-4547.
  • 6Heeney M, Zhang W M, Crouch D J, Chabinyc M L, Gordeyev S , Hamilton R, Higgins S J, McCulloch I, Skabara P J, Sparrowe D, Tierney S. Chem Commun, 2007,5061-5063.
  • 7Meng H, Perepichka D F, Wudl F. Angew Chem Int Ed, 2003, 42:658-661.
  • 8Li M, Patra A, Sheynin Y, Bendikov M. Adv Mater, 2009, 21:1707-1711.
  • 9Patra A, Wijsboom Y H," Zade S S, Li M, Sheynin Y, Leitus G and Bendikov M. J Am Chem Soc, 2008, 130:6734-6736.
  • 10Wijsboom Y H, Patra A, Zade S S, Sheynin Y, Li M, Shimon L J W, Bendikov M. Angew Chem Int Ed, 2009, 48,5443-5447.

引证文献2

浙江理工大学学报（自然科学版）
2010年 第5期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部