SPECTROSCOPIC AND THERMAL STUDIES ON CHARGE-TRANSFER COMPLEXES OF PERHYDROISOQUINOLINE WITH p-CHLORANIL, 2,3-DICHLORO-5,6-DICYANO-1,4-BENZOQUINONE AND 7,7,8,8-TETRACYANOQUINODIMETHANE

S. Refat, Moamen and Abou-Melha, Sraa (2012) SPECTROSCOPIC AND THERMAL STUDIES ON CHARGE-TRANSFER COMPLEXES OF PERHYDROISOQUINOLINE WITH p-CHLORANIL, 2,3-DICHLORO-5,6-DICYANO-1,4-BENZOQUINONE AND 7,7,8,8-TETRACYANOQUINODIMETHANE. JOURNAL OF APPLIED SPECTROSCOPY, 79 (1). pp. 1-12.

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Abstract

Charge-transfer interactions of perhydroisoquinoline (PHIQ) with 2,3-dichloro-5,6-dicyano-1,4- benzoquinone (DDQ), p-chloranil (CHL), and 7,7,8,8-tetracyanoquinodimethane (TCNQ) in chloroform as a solvent have resulted in stable complexes with a general formula [(PHIQ)(acceptor)] with a molar ratio of 1:1 (donor:acceptor). Elemental (C, H, N) and thermogravimetric (TGA/DTG) analyses, photometric titration, and electronic, infrared, and 1H NMR spectra were used to give an idea of the charge-transfer interaction between donating and accepting sites. The Benesi–Hildebrand method and its modification were used to determine an association constant (K) and a molar extinction coefficient (ε)

Item Type: Article
Subjects: Chemistry
Divisions: Female College of Sciences and Arts - Khamis Mushyait > English Language
Depositing User: sara abu melha
Date Deposited: 29 Jan 2017 11:08
Last Modified: 01 Feb 2017 09:10
URI: http://eprints.kku.edu.sa/id/eprint/410

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