Synthesis and Characterization of 4,4′-Dibromoazobenzene

Authors

  • Ranran Zhen College of Chemistry, Chongqing Normal University, Chongqing, 400000, China
  • Wei Lu College of Chemistry, Chongqing Normal University, Chongqing, 400000, China
  • Yun Zhou College of Chemistry, Chongqing Normal University, Chongqing, 400000, China
  • Minzhen Feng College of Chemistry, Chongqing Normal University, Chongqing, 400000, China
  • Ya Wang College of Chemistry, Chongqing Normal University, Chongqing, 400000, China

DOI:

https://doi.org/10.30564/opmr.v1i2.1740

Abstract

Azobenzene molecules show excellent application potential in many fields due to their photoisomerization properties. Azobenzene molecules will gradually change from trans-structure to cis-structure under the irradiation of UV. In this paper, we have synthesized 4,4'-dibromoazobenzene molecules and characterized their photoisomerization properties. We found that with the extension of UV time, the trans absorption peak at 343 nm decreased significantly, while the cis absorption peak at 435 nm showed an upward trend. Furthermore, photoisomerization of azobenzene is not a first-order reaction.

Keywords:

Azobenzene, Photoisomerism

References

[1] Mayo D W, Pike R M, Trumper P K. Microscale Organic Chemistry[J]. 1994.

[2] Haghbeen K, Tan E W. Facile synthesis of catechol azo dyes[J]. The Journal of Organic Chemistry, 1998, 63(13): 4503-4505.

[3] Merrington J, James M, Bradley M. Supported diazonium salts—convenient reagents for the combinatorial synthesis of azo dye[J]. Chemical communications, 2002 (2): 140-141.

[4] Breslow R, Schmuck C. The mechanism of thiazolium catalysis[J]. Tetrahedron letters, 1996, 37(45): 8241-8242.

[5] Davey M H, Lee V Y, Miller R D, et al. Synthesis of aryl nitroso derivatives by tert-butyl hypochlorite oxidation in homogeneous media. Intermediates for the preparation of high-hyperpolarizability chromophore skeletons[J]. The Journal of organic chemistry, 1999, 64(13): 4976-4979.

[6] Nanjundaswamy H M, Pasha M A. Facile, Product‐Selective Reduction of Azoxyarenes into Azoarenes or Hydrazoarenes by Aluminium/Hydrazine Hydrate[J]. Synthetic communications, 2005, 35(16): 2163-2168.

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How to Cite

Zhen, R., Lu, W., Zhou, Y., Feng, M., & Wang, Y. (2020). Synthesis and Characterization of 4,4′-Dibromoazobenzene. Organic Polymer Material Research, 1(2), 6–8. https://doi.org/10.30564/opmr.v1i2.1740

Issue

Vol. 1 , Iss. 2 (December 2019)

Article Type

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