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

被引：14

作者：

AlQaradawi, Siham Y. ^{[1
]}

Bazzi, Hassan S. ^{[2
]}

Mostafa, Adel ^{[2
]}

Nour, El-Metwally ^{[1
]}

机构：

[1] Qatar Univ, Dept Chem & Earth Sci, Coll Arts & Sci, Doha, Qatar

[2] Texas A&M Univ Qatar, Dept Chem, Doha, Qatar

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2011年 / 998卷 / 1-3期

关键词：

1,4,7,10,13,16-hexamethyl-1,4,7,10,13,16-hexaazacyclooctadecane; Iodine; TCNE; TCNQ; Charge-transfer; PI-ELECTRON ACCEPTORS; CYCLIC BASE 1,4,10,13-TETRAOXA-7,16-DIAZACYCLOOCTADECANE; CHLORANIL; SPECTRA; 1,4,7-TRIMETHYL-1,4,7-TRIAZACYCLONONANE; 1,4,8,11-TETRAAZACYCLOTETRADECANE; 2,3-DIAMINOPYRIDINE; TETRACYANOETHYLENE; DDQ;

D O I：

10.1016/j.molstruc.2011.05.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 sigma-electron acceptor iodine and pi-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]+center dot I-11(-), [(HMHACOD)(TCNE)(16)] and [(HMHACOD)(TCNQ)(3)]. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：126 / 135

页数：10

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