Paper Title:
Synthesis and Characterization of a New Organic Photochromic Function Material
  Abstract

A new organic photochromic function material containing pyrazolone-ring, 1-phenyl-3-methyl-4-(4-fluobenzal)-pyrazolone-5 thiosemicarbazone (PM4FBP-TSC) was synthesized and characterized by elemental analysis, IR spectrum and 1H NMR spectrum. The photochromic properties and photocolored kinetics of PM4FBP-TSC were studied by Time-dependent UV-vis reflective spectra and fluorescent spectra under irradiation of 365nm light. The structure of PM4FBP-TSC was determined by single crystal X-ray diffraction. Space group Pbca with cell dimensions of a = 18.445(4) Å, b = 11.987(2) Å, c = 19.249(4) Å, V = 4256.1(18) Å3, Z = 8 and R = 0.0521. The crystal structure analysis of photocolored product of PM4FBP-TSC showed that the photochromic phenomenon was due to the photoisomerization from enol form to keto formı and the mechanism of intermolecular proton transfer was applied to interpret the photochromism. The photoisomerization belongs to the first-order reaction by computation, and kinetic reaction constant is k1 = 6.85 × 10-5 s-1.

  Info
Periodical
Materials Science Forum (Volumes 475-479)
Main Theme
Edited by
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Pages
1821-1824
DOI
10.4028/www.scientific.net/MSF.475-479.1821
Citation
G. F. Liu, L. Liu, D. Z. Jia, X. Hu, K. Yu, "Synthesis and Characterization of a New Organic Photochromic Function Material", Materials Science Forum, Vols. 475-479, pp. 1821-1824, 2005
Online since
January 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Duo Hua Jiang, Wei Ping Wang, Shou Zhi Pu, Wei Jun Liu
Abstract:An unsymmetrical diarylethene derivative bearing both phenyl and thiophene moieties, in which a methoxyl group was substituted at the...
1605
Authors: Gang Liu, Ming Liu, Shou Zhi Pu
Abstract:An unsymmetrical photochromic diarylethene,...
2415
Authors: Cong Bin Fan, Shou Zhi Pu, Wei Jun Liu
Abstract:Fluorescent photoswitching molecule in which photochromic diarylethene with six-number phenyl unit and thiophene ring attached a phenyl...
1515
Authors: Hong Liang Liu, Shou Zhi Pu, Shi Qiang Cui, Wei Jun Liu
Abstract:A novel photochromic diarylethene based on pyrazole moiety was synthesized and its photochromic and fluorescent properties were also...
53
Authors: Pan Pan Ren, Min Deng, Shi Qiang Cui, Gang Liu
Chapter 3: Industry, Mechanical Engineering, Manufacturing Engineering Based on Dynamic Systems
Abstract:A new photochromic diarylethene compound, 1-[(2-methyl-5-(4-cyanophenyl)-3-thienyl)]-2-(2-methylnaphthlen-1-ly)perfluorocyclopentene (1o),...
478