2015
DOI: 10.3390/cryst5030283
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Two Closely Related Organic Charge-Transfer Complexes Based on Tetrathiafulvalene and 9H-fluorenone Derivatives. Competition between Hydrogen Bonding and Stacking Interactions

Abstract: Two 1:1 charge-transfer organic complexes were formed using tetrathiafulvalene as a donor and a 9H-fluorenone derivative as acceptor: 4,5,7-trinitro-9H-fluoren-9-one-2-carboxylic acid (complex 1) or 4,5,7-trinitro-9H-fluoren-9-one-2-carboxylic acid methyl ester (complex 2). Both systems crystallize with alternated donor and acceptor stacks. However, the crystal structure of 1 is influenced by classical hydrogen bonds involving carboxylic acid groups, which force to arrange acceptors as centrosymmetric dimers i… Show more

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Cited by 2 publications
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“…We have been interested in assessing the accuracy of this method in difficult cases, for instance when comparing polymorphic phases, 9 complexes close to the neutral state, 10 or complexes with stoichiometry other than 1 : 1, for which some components may not participate in charge transfer. 11 During these studies, 12 we obtained a set of solvated complexes, using TTF and three 9-dicyanomethylenefluorene derivatives (see Scheme 1) as D and A components.…”
Section: Introductionmentioning
confidence: 99%
“…We have been interested in assessing the accuracy of this method in difficult cases, for instance when comparing polymorphic phases, 9 complexes close to the neutral state, 10 or complexes with stoichiometry other than 1 : 1, for which some components may not participate in charge transfer. 11 During these studies, 12 we obtained a set of solvated complexes, using TTF and three 9-dicyanomethylenefluorene derivatives (see Scheme 1) as D and A components.…”
Section: Introductionmentioning
confidence: 99%