Synthesis, spectroscopic, thermal and structural investigations of charge-transfer complexes of 4,4′-trimethylenedipiperidine with chloranil, TBCHD, DDQ, TCNQ and iodine

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Author Shahada, Lamis en_US
Author Mostafa, Adel en_US
Author Nour, El-Metwally en_US
Author Bazzi, Hassan S. en_US
Available date 2009-12-27T05:56:33Z en_US
Publication Date 2009-05-14 en_US
Citation Shahada, L., Mostafa, A., Nour, E.-M., & Bazzi, H. S. (2009). Synthesis, spectroscopic, thermal and structural investigations of charge-transfer complexes of 4,4′-trimethylenedipiperidine with chloranil, TBCHD, DDQ, TCNQ and iodine. Journal of Molecular Structure, 933(1–3), 1–7 en_US
URI http://dx.doi.org/10.1016/j.molstruc.2009.05.056 en_US
URI http://hdl.handle.net/10576/10460 en_US
Abstract The charge-transfer interactions between the electron donor 4,4′-trimethylenedipiperidine (TMDP) and the acceptors 2,3,5,6-tetrachloro-1,4-benzoquinone (chloranil), 2,4,4,6-tetrabromo-2,5-cyclohexadienone (TBCHD), 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ), 7,7′,8,8′-tetracyanoquinodimethane (TCNQ) and iodine have been studied spectrophotometrically in CHCI3 solutions. The formed solid charge-transfer complexes were also isolated and characterized through infrared spectra as well as thermal and elemental analysis. The stoichiometry of the complexes was found to be 1:1 in the case of TMDP–chloranil and TMDP–TBCHD systems and 1:2 in the case of TMDP–DDQ and TMDP–TCNQ systems and 1:3 in the case of TMDP–iodine system. Taking this into consideration along with infrared spectra and thermal and elemental analysis, the formed CT-complexes have the formulas [(TMDP)(chloranil)], [(TMDP)(TBCHD)], [(TMDP)(DDQ)2] [(TMDP)(TCNQ)2] and [(TMDP)I]+·I5−, respectively. en_US
Language en en_US
Publisher Elsevier en_US
Subject 4 en_US
Subject 4′-Trimethylenedipiperidine en_US
Subject Chloranil en_US
Subject DDQ en_US
Subject Iodine en_US
Subject TBCHD en_US
Subject TCNQ en_US
Title Synthesis, spectroscopic, thermal and structural investigations of charge-transfer complexes of 4,4′-trimethylenedipiperidine with chloranil, TBCHD, DDQ, TCNQ and iodine en_US
Type Article en_US


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