Polarity dependent photoisomerization of ether substituted azodyes: Synthesis and photoswitching behavior

Gan SM 1 , Pearl ZF 2 , Yuvaraj AR 1 , Lutfor MR 1 , Gurumurthy H 3

Affiliations 

  • 1 Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang, 26300, Gambang, Kuantan, Malaysia
  • 2 Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang, 26300, Gambang, Kuantan, Malaysia; Department of Chemistry, National Institute of Technology, Karnataka, Mangalore, India
  • 3 BMS R and D Centre, BMS College of Engineering, Basavanagudi, Bangalore, India. Electronic address: murthyhegde@gmail.com
Spectrochim Acta A Mol Biomol Spectrosc, 2015 Oct 5;149:875-80.
PMID: 26004096 DOI: 10.1016/j.saa.2015.05.027

Abstract

Two new ether substituted azodyes were synthesized and characterized by different spectral analysis such as (1)H NMR, (13)C NMR, FTIR and UV/Vis. Synthesized compounds were used to study the photoisomerization phenomenon by using UV-Vis spectro-photometer. Interesting polarity dependent effect is observed for the first time on these materials. Trans-cis (E-Z) and cis-trans (Z-E) conversion occurred within 41 s and 445 min, respectively for both the compounds in solutions. Polarizing optical microscopy studies revealed that there is no liquid crystal phase for both the compounds. The dramatic variation in the optical property is speculated to be the polarity of the chemical species. These derivatives are useful to fabricate optical data storage devices.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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