European Journal of Chemistry 2014, 5(4), 652-656 | doi: https://doi.org/10.5155/eurjchem.5.4.652-656.1100 | Get rights and content






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Study of the optical properties of poly(vinyl chloride)-4-[(5-mercapto-1,3,4-thiadiazol-2-yl)diazenyl]phenol complexes


Noora Asaad Witwit (1,*)

(1) Department of Chemistry, College of Science, Al-Nahrain University, Baghdad, 10072, Iraq
(*) Corresponding Author

Received: 07 Jun 2014 | Revised: 03 Aug 2014 | Accepted: 03 Aug 2014 | Published: 31 Dec 2014 | Issue Date: December 2014

Abstract


The most widely practiced reaction of diazonium salts is azo coupling. In this process, the diazonium compound is attacked by an electron-rich substrate. When the coupling partners are arenes (phenols), the process is an example of electrophilic aromatic substitution. Poly (vinyl chloride) (PVC) react with 4-[(5-mercapto-1,3,4-thiadiazol-2-yl)diazenyl]phenol (L) in THF to form the PVC-L compound, which have been characterized by spectroscopic methods. PVC-L has further been reacted with different metals ions to form PVC-L-MII complexes. The structure of these complexes has been characterized by FT-IR and UV-Vis spectrophotometry. The optical properties in the region from 200-900 nm were also studied using UV-Vis spectrophotometer. The optical data analyzed and interpreted in term of the theory of phonon assisted direct electronic transitions according to energy gap data the conductivity of PVC and the complexes.


Keywords


PVC; FT-IR; UV-Vis; Thiadizol; Energy gap; Optical properties

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DOI: 10.5155/eurjchem.5.4.652-656.1100

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Funding information


The Chemistry Department in College of Science, Al-Nahrain University, Iraq

Citations

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[1]. Naser Shaalan, Nawres‎‏ Laftah, Gamal El-Hiti, Mohammad Alotaibi, Raad Muslih, Dina Ahmed, Emad Yousif
Poly(vinyl Chloride) Photostabilization in the Presence of Schiff Bases Containing a Thiadiazole Moiety
Molecules  23(4), 913, 2018
DOI: 10.3390/molecules23040913
/


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How to cite


Witwit, N. Eur. J. Chem. 2014, 5(4), 652-656. doi:10.5155/eurjchem.5.4.652-656.1100
Witwit, N. Study of the optical properties of poly(vinyl chloride)-4-[(5-mercapto-1,3,4-thiadiazol-2-yl)diazenyl]phenol complexes. Eur. J. Chem. 2014, 5(4), 652-656. doi:10.5155/eurjchem.5.4.652-656.1100
Witwit, N. (2014). Study of the optical properties of poly(vinyl chloride)-4-[(5-mercapto-1,3,4-thiadiazol-2-yl)diazenyl]phenol complexes. European Journal of Chemistry, 5(4), 652-656. doi:10.5155/eurjchem.5.4.652-656.1100
Witwit, Noora. "Study of the optical properties of poly(vinyl chloride)-4-[(5-mercapto-1,3,4-thiadiazol-2-yl)diazenyl]phenol complexes." European Journal of Chemistry [Online], 5.4 (2014): 652-656. Web. 4 Jun. 2020
Witwit, Noora. "Study of the optical properties of poly(vinyl chloride)-4-[(5-mercapto-1,3,4-thiadiazol-2-yl)diazenyl]phenol complexes" European Journal of Chemistry [Online], Volume 5 Number 4 (31 December 2014)

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DOI Link: https://doi.org/10.5155/eurjchem.5.4.652-656.1100

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