THE CHARGE TRANSFER AND LUMINESCENCE BEHAVIOR OF PYRYLIUM SALT UNDER CONFORMATION CONSTRAINED CONDITION

doi:10.7517/j.issn.1674-0475.1997.01.67

Abstract

Abstract: The photophysical properties of 2-phenyl-4-(4’-N,N-dimethylaminophenyl)-6-(4’-chlorophenyl)pyrylium tetrafluoborate were studied in 1,2-dichloroethane and PMMA film respectively. It is shown that both intramolecular charge transfer and energy transfer occur in excited state in 1,2-dichloroethane and PMMA film. The difference between them is that in 1,2-dichloroethane the fluorescence emission corresponding to X-axis is detected only and the fluorescence emission from Y-axis is completely quenched due to the formation of TICT (twisted intramolecular charge transfer). Whereas, the fluorescence emissions corresponding to both X-axis and Y-axis are observed in PMMA film. This indicates that the TICT formation could not be formed in excited state under the conformation constrained condition.

Key words: pyrylium salt, intramolecular charge transfer, intramolecular energy transfer, conformation constrained condition, photophysical property

CHEN Yi, WANG Pengfei, WU Shikang. THE CHARGE TRANSFER AND LUMINESCENCE BEHAVIOR OF PYRYLIUM SALT UNDER CONFORMATION CONSTRAINED CONDITION[J]. Imaging Science and Photochemistry, 1997, 15(1): 67-70.

[1]	LIU Lin, TANG Xianglin, WU Jiasheng, LIU Weimin. A Thiol-selective Colorimetric and Fluorescent Sensor Based on Intramolecular Electron Transfer [J]. Imaging Science and Photochemistry, 2014, 32(3): 274-281.
[2]	XU Li, WU Wei, WANG Hua. Synthesis and Spectroscopic Behaviors of 2, 4, 6-Trinaphthalenyl-1, 3, 5-triazines [J]. Imaging Science and Photochemistry, 2013, 31(5): 375-382.
[3]	DONG Zhen-ming, CUI Xin-xin, LIU Yao, WU Xu-jiao. Synthesis of 7-(4-chlorophenyl)azo-10-hydroxybenzoquinoline and Recognition of F^- [J]. Imaging Science and Photochemistry, 2013, 31(5): 390-395.
[4]	WANG Xiao-jun, XING Ling-bao, GENG Yan, CHEN Bin, TONG Zhen-he, WU Li-zhu. Colorimetric and Electrochemical Pb²⁺ Detection by σ-Bridged Tetrathiafulvalene-Pyridine Derivatives [J]. Imaging Science and Photochemistry, 2011, 29(2): 133-139.
[5]	KANG Rong-hua, CHEN Wei-qiang, DUAN Xuan-ming. Synthesis and Two-Photon Absorption Properties of 3,6-bis[2-(4-ethoxycarbonyl)phenylethynyl]-9-pentylcarbazole [J]. Imaging Science and Photochemistry, 2010, 28(4): 272-278.
[6]	GENG Yan, CHEN Bin, TONG Zhen-he(TUNG Chen-ho), WU Li-zhu. "A-C≡C-TTF-C≡C-A" Tetrathiafulvalene Derivative:Synthesis and Property [J]. Imaging Science and Photochemistry, 2009, 27(1): 32-37.
[7]	ZHANG Jun-li, WANG Hua. Study on the Chromogenic Behaviors of Oxided Anthracyl Bis(indolyl)methane [J]. Imaging Science and Photochemistry, 2007, 25(4): 257-266.
[8]	RUI Wen-wen, JIANG Wan-li, DING Xue-xia, WANG Xiao-mei. Synthesis and Fluorescence Properties of Two Oxadiazole-Based Multibranched Chromophores [J]. Imaging Science and Photochemistry, 2007, 25(3): 176-182.
[9]	LI Xue, WANG Tao, ZHAO Yu-xia, WU Fei-peng. Synthesis and Photophysical Characteristics of a Novel Two-photon Absorption Unsymmetrical Ketocoumarin [J]. Imaging Science and Photochemistry, 2006, 24(3): 187-196.
[10]	ZHANG Xuan, LIU Li-hong, JIANG Yun-bao. BENZANILIDES: A KIND OF INTRAMOLECULAR CHARGE TRANSFER FLUORESCENCE PROBE [J]. Imaging Science and Photochemistry, 2002, 20(4): 283-291.
[11]	JIANG Hua, XU Hui-jun, SHEN Shu-yin, ZHOU Qing-fu . INTRAMOLECULAR ENERGY TRANSFER IN ANTHRAQUIONE CROWN ETHER EuEu³⁺ COMPLEX [J]. Imaging Science and Photochemistry, 2000, 18(3): 223-228.
[12]	JIANG Yunbao. TOPOLOGICAL CONTROL OF EXCITED-STATED PHOTOPHYSICS:AGGREGATION OF p-(N,N’-DIDECYLAMINO)BENZONITRILE AND PHOTOINDUCED INTRAMOLECULAR CHARGE TRANSFER [J]. Imaging Science and Photochemistry, 1996, 14(3): 207-211.
[13]	WANG Hua, CHEN Jingrong, ZHANG Baowen, CAO Yi. A STUDY OF SPECTROSCOPIC BEHAVIOR OF ANTHRACENE SUBSTITUTED BY TRICYANOVINYL IN DIFFERENT POSITION [J]. Imaging Science and Photochemistry, 1996, 14(2): 108-114.
[14]	WANG PENG-FEI, WU SHI-KANG. INTRAMOLECULAR CHARGE TRANSFER COMPOUND ——A STUDY ON THE SPECTRA AND THE PHOTOPHY-SICAL BEHAVIOR OF CHALCONE DERIVATIVES [J]. Imaging Science and Photochemistry, 1993, 11(4): 289-294.
[15]	DIAO LI, WU SHI-KANG. A STUDY ON THE PHOTOCYCLIZATION OF SUBSTITUTED NITRONE COMPOUNDS [J]. Imaging Science and Photochemistry, 1993, 11(3): 264-268.

THE CHARGE TRANSFER AND LUMINESCENCE BEHAVIOR OF PYRYLIUM SALT UNDER CONFORMATION CONSTRAINED CONDITION

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments