Novel charge transfer complexes of the donor 1,4,7,10,13,16-hexamethyl-1,4, 7,10,13,16-hexaazacyclooctadecane and the acceptors iodine, TCNE, and TCNQ

Siham Y. Alqaradawi, Hassan S. Bazzi, Adel Mostafa, El Metwally Nour

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Novel charge transfer complexes have been formed in the reaction of the interesting powerful electron donor 1,4,7,10,13,16-hexamethyl-1,4,7,10,13,16- hexaazacyclooctadecane (HMHACOD) with σ-electron acceptor iodine and π-acceptors tetracynoethylene (TCNE) and 7,7,8,8,-tetracyanoquinodimethane (TCNQ). The reactions have been studied spectrophotometrically in chloroform and the formed solid complexes have been isolated and characterized through infrared spectra as well as thermal and elemental analysis. Due to the expected powerful electron donation of the donor (HMHACOD), the reaction stoichiometries, donor:acceptor molar ratio values, are found to be exceptionally high equal to 1:6, 1:16 and 1:3 for iodine, TCNE and TCNQ complexes, respectively. Accordingly the formed charge transfer complexes could be formulated as [(HMHACOD)I] +·I11 -, [(HMHACOD)(TCNE)16] and [(HMHACOD)(TCNQ)3].

Original languageEnglish
Pages (from-to)126-135
Number of pages10
JournalJournal of Molecular Structure
Volume998
Issue number1-3
DOIs
Publication statusPublished - 13 Jul 2011

Fingerprint

Iodine
Charge transfer
Electrons
Chloroform
Stoichiometry
Thermoanalysis
Infrared radiation
Chemical analysis
tetracyanoquinodimethane

Keywords

  • 1,4,7,10,13,16-hexamethyl-1,4,7,10,13,16-hexaazacyclooctadecane
  • Charge-transfer
  • Iodine
  • TCNE
  • TCNQ

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Novel charge transfer complexes of the donor 1,4,7,10,13,16-hexamethyl-1,4, 7,10,13,16-hexaazacyclooctadecane and the acceptors iodine, TCNE, and TCNQ. / Alqaradawi, Siham Y.; Bazzi, Hassan S.; Mostafa, Adel; Nour, El Metwally.

In: Journal of Molecular Structure, Vol. 998, No. 1-3, 13.07.2011, p. 126-135.

Research output: Contribution to journalArticle

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abstract = "Novel charge transfer complexes have been formed in the reaction of the interesting powerful electron donor 1,4,7,10,13,16-hexamethyl-1,4,7,10,13,16- hexaazacyclooctadecane (HMHACOD) with σ-electron acceptor iodine and π-acceptors tetracynoethylene (TCNE) and 7,7,8,8,-tetracyanoquinodimethane (TCNQ). The reactions have been studied spectrophotometrically in chloroform and the formed solid complexes have been isolated and characterized through infrared spectra as well as thermal and elemental analysis. Due to the expected powerful electron donation of the donor (HMHACOD), the reaction stoichiometries, donor:acceptor molar ratio values, are found to be exceptionally high equal to 1:6, 1:16 and 1:3 for iodine, TCNE and TCNQ complexes, respectively. Accordingly the formed charge transfer complexes could be formulated as [(HMHACOD)I] +·I11 -, [(HMHACOD)(TCNE)16] and [(HMHACOD)(TCNQ)3].",
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T1 - Novel charge transfer complexes of the donor 1,4,7,10,13,16-hexamethyl-1,4, 7,10,13,16-hexaazacyclooctadecane and the acceptors iodine, TCNE, and TCNQ

AU - Alqaradawi, Siham Y.

AU - Bazzi, Hassan S.

AU - Mostafa, Adel

AU - Nour, El Metwally

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N2 - Novel charge transfer complexes have been formed in the reaction of the interesting powerful electron donor 1,4,7,10,13,16-hexamethyl-1,4,7,10,13,16- hexaazacyclooctadecane (HMHACOD) with σ-electron acceptor iodine and π-acceptors tetracynoethylene (TCNE) and 7,7,8,8,-tetracyanoquinodimethane (TCNQ). The reactions have been studied spectrophotometrically in chloroform and the formed solid complexes have been isolated and characterized through infrared spectra as well as thermal and elemental analysis. Due to the expected powerful electron donation of the donor (HMHACOD), the reaction stoichiometries, donor:acceptor molar ratio values, are found to be exceptionally high equal to 1:6, 1:16 and 1:3 for iodine, TCNE and TCNQ complexes, respectively. Accordingly the formed charge transfer complexes could be formulated as [(HMHACOD)I] +·I11 -, [(HMHACOD)(TCNE)16] and [(HMHACOD)(TCNQ)3].

AB - Novel charge transfer complexes have been formed in the reaction of the interesting powerful electron donor 1,4,7,10,13,16-hexamethyl-1,4,7,10,13,16- hexaazacyclooctadecane (HMHACOD) with σ-electron acceptor iodine and π-acceptors tetracynoethylene (TCNE) and 7,7,8,8,-tetracyanoquinodimethane (TCNQ). The reactions have been studied spectrophotometrically in chloroform and the formed solid complexes have been isolated and characterized through infrared spectra as well as thermal and elemental analysis. Due to the expected powerful electron donation of the donor (HMHACOD), the reaction stoichiometries, donor:acceptor molar ratio values, are found to be exceptionally high equal to 1:6, 1:16 and 1:3 for iodine, TCNE and TCNQ complexes, respectively. Accordingly the formed charge transfer complexes could be formulated as [(HMHACOD)I] +·I11 -, [(HMHACOD)(TCNE)16] and [(HMHACOD)(TCNQ)3].

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