TY - JOUR
T1 - Synthesis, spectroscopic and structural characterization of charge transfer complexes of 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8,8,8]hexacosane with iodine, TCNE and TCNQ
AU - Nour, El Metwally
AU - Mostafa, Adel
AU - Bazzi, Hassan S.
PY - 2012/5/30
Y1 - 2012/5/30
N2 - The charge transfer interaction of the interesting mixed nitrogen-oxygen donor 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8,8,8]hexacosane (HODABCHC) with σ-electron acceptor iodine and π-acceptors tetracyanoethylene (TCNE) and 7,7,8,8-tetracyanoquinodimethane (TCNQ) have been investigated spectrophotometrically in chloroform. FT-IR, thermal and elemental analysis measurements are performed for the solid CT-interaction products. The reaction stoichiometries were found to be 1:4, 1:6 and 1:3 donor:acceptor molar ratio for iodine, TCNE and TCNQ reaction systems, respectively. The obtained relatively high reaction stoichiometry values are expected due to the expected high electron donation of the donor (HODABCHC). It contains six oxygen and two nitrogen donor atoms. Accordingly, the formed charge transfer complexes could be formulated as [(HODABCHC)I]+I7-, [(HODABCHC)(TCNE)6] and [(HODABCHC)(TCNQ)3].
AB - The charge transfer interaction of the interesting mixed nitrogen-oxygen donor 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8,8,8]hexacosane (HODABCHC) with σ-electron acceptor iodine and π-acceptors tetracyanoethylene (TCNE) and 7,7,8,8-tetracyanoquinodimethane (TCNQ) have been investigated spectrophotometrically in chloroform. FT-IR, thermal and elemental analysis measurements are performed for the solid CT-interaction products. The reaction stoichiometries were found to be 1:4, 1:6 and 1:3 donor:acceptor molar ratio for iodine, TCNE and TCNQ reaction systems, respectively. The obtained relatively high reaction stoichiometry values are expected due to the expected high electron donation of the donor (HODABCHC). It contains six oxygen and two nitrogen donor atoms. Accordingly, the formed charge transfer complexes could be formulated as [(HODABCHC)I]+I7-, [(HODABCHC)(TCNE)6] and [(HODABCHC)(TCNQ)3].
KW - 4,7,13,16,21,24-Hexaoxa-1,10-diazabicyclo[8,8,8]hexacosane
KW - Iodine
KW - Spectra
KW - Structure
KW - TCNE
KW - TCNQ
UR - http://www.scopus.com/inward/record.url?scp=84860543315&partnerID=8YFLogxK
U2 - 10.1016/j.molstruc.2012.01.038
DO - 10.1016/j.molstruc.2012.01.038
M3 - Article
AN - SCOPUS:84860543315
SN - 0022-2860
VL - 1016
SP - 64
EP - 71
JO - Journal of Molecular Structure
JF - Journal of Molecular Structure
ER -