ABOUT INDEXING BOARD ARCHIVES AUTHOR GUIDELINES SUBMIT PAPER AUTHOR'S PAGE NEWS, EVENTS CONTACT
REVISTA DE CHIMIE
Cite as: Rev. Chim.
https://doi.org/10.37358/Rev.Chim.1949

OSIM Nr. R102355
ISSN Online 2668-8212
ISSN Print: 1582-9049
ISSN-L: 1582-9049

REVISTA DE CHIMIE Latest Issue

LATEST ISSUE >>>

   Volume 75, 2024
   Volume 74, 2023
   Volume 73, 2022
   Volume 72, 2021
   Volume 71, 2020
   Volume 70, 2019
   Volume 69, 2018
   Volume 68, 2017
   Volume 67, 2016
   Volume 66, 2015
   Volume 65, 2014
   Volume 64, 2013
   Volume 63, 2012
   Volume 62, 2011
   Volume 61, 2010
   Volume 60, 2009
   Volume 59, 2008
   Volume 58, 2007
 
<<<< back

Revista de Chimie (Rev. Chim.), Year 2019, Volume 70, Issue 5, 1518-1529

https://doi.org/10.37358/RC.19.5.7162

Alexandru C. Razus, Liviu Birzan, Mihaela Cristea, Victorita Tecuceanu, Constantin Draghici, Anamaria Hanganu, Maria Maganu, Lucia Pintilie, Eleonora Mihaela Ungureanu

New (azulen-1-yldiazenyl)-heteroaromatic Compounds Containing 1,3,4-thiadiazol-3-yl Moieties

Abstract:

(E)-2-(Azulen-1-yldiazenyl)-1,3,4-thiadiazoles, unsubstituted or substituted either at azulen-1-yl moiety or at 5-position of thiadiazole ring were synthesized. Among the acids used as diazotization medium, dichloroacetic acid was the best choice. In several cases the by-products such as thioether 9 were isolated along with the normal coupling derivatives. The generated products were characterized and their MS and UV-vis spectra discussed. A computational study on (E)-2-(azulen-1-yldiazenyl)-1,3,4-thiadiazoles was undertaken based on density functional theory (DFT) to determine frontier orbital energies and other physical properties. The absorption maxima and the basicity of the new compounds are close to those of the corresponding diazenes containing thiazole, previously described. They have brick color in neutral medium and violet in strong acidic solutions. The redox potentials were also determined remarking the influence of the substituents on these potentials.
Keywords:
Azulene; diazene; thiadiazoles; azo coupling; isosbestic point; reduction and oxidation potentials

Issue: 2019, Volume 70, Issue 5
Pages: 1518-1529
Publication date: 2019/6/15
https://doi.org/10.37358/RC.19.5.7162
download pdf   Download Pdf Article
Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
Citation Styles
Cite this article as:
RAZUS, A.C., BIRZAN, L., CRISTEA, M., TECUCEANU, V., DRAGHICI, C., HANGANU, A., MAGANU, M., PINTILIE, L., UNGUREANU, E.M., New (azulen-1-yldiazenyl)-heteroaromatic Compounds Containing 1,3,4-thiadiazol-3-yl Moieties, Rev. Chim., 70(5), 2019, 1518-1529.

Vancouver
Razus AC, Birzan L, Cristea M, Tecuceanu V, Draghici C, Hanganu A, Maganu M, Pintilie L, Ungureanu EM. New (azulen-1-yldiazenyl)-heteroaromatic Compounds Containing 1,3,4-thiadiazol-3-yl Moieties. Rev. Chim.[internet]. 2019 May;70(5):1518-1529. Available from: https://doi.org/10.37358/RC.19.5.7162


APA 6th edition
Razus, A.C., Birzan, L., Cristea, M., Tecuceanu, V., Draghici, C., Hanganu, A.,... Ungureanu, E.M. (2019). New (azulen-1-yldiazenyl)-heteroaromatic Compounds Containing 1,3,4-thiadiazol-3-yl Moieties. Revista de Chimie, 70(5), 1518-1529. https://doi.org/10.37358/RC.19.5.7162


Harvard
Razus, A.C., Birzan, L., Cristea, M., Tecuceanu, V., Draghici, C., Hanganu, A., Maganu, M., Pintilie, L., Ungureanu, E.M. (2019). 'New (azulen-1-yldiazenyl)-heteroaromatic Compounds Containing 1,3,4-thiadiazol-3-yl Moieties', Revista de Chimie, 70(5), pp. 1518-1529. https://doi.org/10.37358/RC.19.5.7162


IEEE
A.C. Razus, L. Birzan, M. Cristea, V. Tecuceanu, C. Draghici, A. Hanganu, M. Maganu, L. Pintilie, E.M. Ungureanu, "New (azulen-1-yldiazenyl)-heteroaromatic Compounds Containing 1,3,4-thiadiazol-3-yl Moieties". Revista de Chimie, vol. 70, no. 5, pp. 1518-1529, 2019. [online]. https://doi.org/10.37358/RC.19.5.7162


Text
Alexandru C. Razus, Liviu Birzan, Mihaela Cristea, Victorita Tecuceanu, Constantin Draghici, Anamaria Hanganu, Maria Maganu, Lucia Pintilie, Eleonora Mihaela Ungureanu,
New (azulen-1-yldiazenyl)-heteroaromatic Compounds Containing 1,3,4-thiadiazol-3-yl Moieties,
Revista de Chimie,
Volume 70, Issue 5,
2019,
Pages 1518-1529,
ISSN 2668-8212,
https://doi.org/10.37358/RC.19.5.7162.
(https://revistadechimie.ro/Articles.asp?ID=7162)
Keywords: Azulene; diazene; thiadiazoles; azo coupling; isosbestic point; reduction and oxidation potentials


RIS
TY - JOUR
T1 - New (azulen-1-yldiazenyl)-heteroaromatic Compounds Containing 1,3,4-thiadiazol-3-yl Moieties
A1 - Razus, Alexandru C.
A2 - Birzan, Liviu
A3 - Cristea, Mihaela
A4 - Tecuceanu, Victorita
A5 - Draghici, Constantin
A6 - Hanganu, Anamaria
A7 - Maganu, Maria
A8 - Pintilie, Lucia
A9 - Ungureanu, Eleonora Mihaela
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2019
VL - 70
IS - 5
SP - 1518
EP - 1529
UR - https://doi.org/10.37358/RC.19.5.7162
KW - Azulene
KW - diazene
KW - thiadiazoles
KW - azo coupling
KW - isosbestic point
KW - reduction and oxidation potentials
ER -


BibTex
@article{RevCh2019P1518,
author = {Razus Alexandru C. and Birzan Liviu and Cristea Mihaela and Tecuceanu Victorita and Draghici Constantin and Hanganu Anamaria and Maganu Maria and Pintilie Lucia and Ungureanu Eleonora Mihaela},
title = {New (azulen-1-yldiazenyl)-heteroaromatic Compounds Containing 1,3,4-thiadiazol-3-yl Moieties},
journal = {Revista de Chimie},
volume = {70},
number = {5},
pages = {1518-1529},
year = {2019},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.19.5.7162},
url = {https://revistadechimie.ro/Articles.asp?ID=7162}
}
 
<<<< back
 
PUBLISHING SECTION
Author Guidelines
 * Paper Drafting
 * Paper Template
 * Ethical Statement
 * Paper Submission
Ghidul Autorului (ro)
Submit Paper
Author's Page
Publishing Ethics
Peer Review Process
Open Access & Archiving Policy
 Search Authors
 LATEST NEWS
REvista de Chimie NUMAR OMAGIAL PETRU PONI.. detalii
REvista de Chimie Revista de Chimie - 70 de ani de aparitie neintrerupta.. detalii
dictionar English-Romanian Dictionary for Mechanical Engineering
(download pdf)
  News, Events
Crossref Member Badge
 DOI  logo
 Gold Open Access | Source=http://www.plos.org/  | Author=art designer at PLoS
Creative Commons License
 Conferences of Contemporary
 Chemistry
 Biblioteca Chimiei
 Materiale Plastice