Synthesis and spectroscopic characterization of piperidine/chloranil and piperidine/7,7′,8,8′-tetracyanoquinodimethane charge transfer complexes: X-ray crystal structure of a 7,7-dicyano-8,8-di-piperidinoquinodimethane adduct |
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| Authors: | Moamen S Refat Lamia A El-Zayat Okan Zafer Yeşilel |
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| Institution: | 1. Chemistry Department, Faculty of Education, Port Said, Suez Canal University, Egypt;2. Department of Chemistry, Faculty of Arts and Sciences, Eski?ehir Osmangazi University, 26480 Eski?ehir, Turkey |
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| Abstract: | Charge transfer reactions of piperidine with p-chloranil (CHL) and 7,7′,8,8′-tetracyanoquinodimethane (TCNQ) in chloroform have produced stable complexes with the general formula (Pip)2(acceptor)] with a 1:2 acceptor:donor molar ratio. Elemental analysis (CHN), electronic spectra, photometric titration, mid infrared spectra, 1H NMR spectra and thermogravimetric analysis (TGA/DTG) were used to predict the position of the charge transfer interaction between the donating and accepting sites. The crystal structure of the Pip/TCNQ system was determined by single crystal X-ray diffraction. |
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| Keywords: | Piperidine TCNQ X-ray crystal structure Thermogravimetric analysis |
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