Crystal engineered acid-base complexes with 2d and 3d hydrogen bonding systems using p-hydroxybenzoic acid as the building block
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منابع مشابه
Crystal engineered acid–base complexes with 2D and 3D hydrogen bonding systems using p-hydroxybenzoic acid as the building block
p-Hydroxybenzoic acid (p-HOBA) was selected as the building block for s elf-assembly with five bas es, i.e., diethy lamine, tert-butylamine, cy clohexylamine, i midazole and pi perazine, and generation of t he correspon ding acid–base c omplexes 1–5. Cry stal structure analy ses suggest that proton -transfer from the carboxyl hydrogen to the nitrogen atom of the b ases can be observed in 1–4, w...
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The energetics of the phenolic O-H bond in the three hydroxybenzoic acid isomers and of the intramolecular hydrogen O-H- - -O-C bond in 2-hydroxybenzoic acid, 2-OHBA, were investigated by using a combination of experimental and theoretical methods. The standard molar enthalpies of formation of monoclinic 3- and 4-hydroxybenzoic acids, at 298.15 K, were determined as Delta(f)(3-OHBA, cr) = -593....
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The effect of alkyl substituents on the C-phenyl and/or the N-Phenyl ring of benzophenylhydroxamic acid on their molecular structure and hydrogen bonding has been investigated. The predominant configuration in CHCl3 is determined by steric and electronic effects. Substituents on the C-phenyl ring favor the cis configuration, while substituents in the N-phenyl ring favor a trans c...
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Sequence-specific protein-nucleic acid recognition is determined, in part, by hydrogen bonding interactions between amino acid side-chains and nucleotide bases. To examine the repertoire of possible interactions, we have calculated geometrically plausible arrangements in which amino acids hydrogen bond to unpaired bases, such as those found in RNA bulges and loops, or to the 53 possible RNA bas...
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ژورنال
عنوان ژورنال: Journal of the Serbian Chemical Society
سال: 2010
ISSN: 0352-5139
DOI: 10.2298/jsc1000011z