Synthesis, spectroscopic and thermal structural investigations of the charge-transfer complexes formed in the reaction of 1-methylpiperidine with σ- and π-acceptors

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Synthesis, spectroscopic and thermal structural investigations of the charge-transfer complexes formed in the reaction of 1-methylpiperidine with σ- and π-acceptors

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dc.contributor.author Fakhroo, Amina A.
dc.contributor.author Bazzi, Hassan S.
dc.contributor.author Mostafa, Adel
dc.contributor.author Shahada, Lamis [لميس شحادة]
dc.date.accessioned 2009-12-24T08:32:00Z
dc.date.available 2009-12-24T08:32:00Z
dc.date.issued 2009-09-25
dc.identifier.citation Volume 75, Issue 1, January 2010, Pages 134-141 en_US
dc.identifier.uri http://dx.doi.org/10.1016/j.saa.2009.09.055
dc.identifier.uri http://hdl.handle.net/10576/10445
dc.description.abstract The reactions of the electron donor 1-methylpiperidine (1MP) with the π-acceptors 7,7,8,8-tetracyanoquinodimethane (TCNQ), tetracyanoethylene (TCNE), 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ), 2,3,5,6-tetrachloro-1,4-benzoquinone (chloranil = CHL) and iodine (I2) were studied spectrophotometrically in chloroform at room temperature. The electronic and infrared spectra of the formed molecular charge-transfer (CT) complexes were recorded. The obtained results showed that the stoichiometries of the reactions are not fixed and depend on the nature of the acceptor. Based on the obtained data, the formed charge-transfer complexes were formulated as [(1MP)(TCNE)2], [(1MP)(DDQ)]·H2O, [(1MP)(CHL)] and [(1MP)I]I3, while in the case of 1MP-TCNQ reaction, a short-lived CT complex is formed followed by rapid N-substitution by TCNQ forming the final reaction products 7,7,8-tricyano-8-piperidinylquinodimethane (TCPQDM). The five solids products were isolated and have been characterized by electronic spectra, infrared spectra, elemental analysis and thermal analysis. © 2009 Elsevier B.V. All rights reserved. en_US
dc.language.iso en en_US
dc.publisher Elsevier B.V. en_US
dc.subject Methylpiperidine (1MP) en_US
dc.subject Charge-transfer en_US
dc.subject CHL en_US
dc.subject DDQ en_US
dc.subject Iodine (I2) en_US
dc.subject TCNE en_US
dc.subject TCNQ en_US
dc.title Synthesis, spectroscopic and thermal structural investigations of the charge-transfer complexes formed in the reaction of 1-methylpiperidine with σ- and π-acceptors en_US
dc.type Article en_US

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