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

Autor:	Adel Mostafa, Hassan S. Bazzi, El-Metwally Nour
Rok vydání:	2012
Předmět:	Chloroform Organic Chemistry Inorganic chemistry chemistry.chemical_element Tetracyanoethylene Iodine Nitrogen Oxygen Acceptor Spectral line Analytical Chemistry Inorganic Chemistry chemistry.chemical_compound Crystallography chemistry Spectroscopy Stoichiometry
Zdroj:	Journal of Molecular Structure. 1016:64-71
ISSN:	0022-2860
DOI:	10.1016/j.molstruc.2012.01.038
Popis:	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 ] + I 7 - , [(HODABCHC)(TCNE) 6 ] and [(HODABCHC)(TCNQ) 3 ].
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a54f0e719ed5f038f9562ec22c61b2dd https://doi.org/10.1016/j.molstruc.2012.01.038 Zobrazit plný text záznamu Full Text from ScienceDirect