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|Author||de Bettencourt-Dias, Ana|
|Date of Issue||2005|
|Description||Thiophene was derivatized at the β-carbon with isophthalic, dipicolinic, and four nitrobenzoic acids to yield 4-thiophen-3-yl-pyridine-2,6-dicarboxylic acid diethyl ester, I; 5-thiophen-3-yl-isophthalic acid diethyl ester, II; 2-nitro-4-thiophen-3-yl benzoic acid ethyl ester, III; 3-nitro-4-thiophen-3-yl benzoic acid ethyl ester, IV; 3-nitro-2-thiophen-3-yl benzoic acid ethyl ester, V; and 2-nitro-5-thiophen-3-yl benzoic acid ethyl ester, VI. These resulting compounds have been isolated and characterized by X-ray single-crystal diffraction. The solid-state structures of these substances are discussed as a function of the position and nature of the functional groups and the intermolecular forces. Modeling of the thiophene−aromatic ring torsion angle allowed us to attribute large differences in torsion angles to packing effects in the structures, due to π−π interactions between the aromatic rings.|
|Item Language||English(United States)|
|Rights||Copyright Not Evaluated|
|Title||Intermolecular forces and functional group effects in the packing structure of thiophene derivatives|
|Journal Title||Crystal Growth Design|
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