Journal
JOURNAL OF MOLECULAR STRUCTURE
Volume 991, Issue 1-3, Pages 1-11Publisher
ELSEVIER
DOI: 10.1016/j.molstruc.2011.01.006
Keywords
Crystal structure; Organic salts; Non-covalent interactions; 2-Aminoheterocyclic compounds; Carboxylic acids; 3D framework
Categories
Funding
- Education Office Foundation of Zhejiang Province [Y201017321]
- Zhejiang A & F University Science Foundation [2009FK63]
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Studies concentrating on hydrogen bonding between the base of 2-aminoheterocyclic compounds 5,7-dimethyl-1,8-naphthyridine-2-amine, 4-phenylthiazol-2-amine, and carboxylic acid derivatives have led to an increased understanding of the role 2-aminoheterocyclic compounds have in binding with carboxylic acid derivatives. Here anhydrous and hydrous multicomponent adducts of 2-aminoheterocyclic compounds such as 5,7-dimethyl-1,8-naphthyridine-2-amine, and 4-phenylthiazol-2-amine have been prepared with 2-chloronicotinic acid, p-hydroxy benzoic acid, maleic acid, and phthalic acid. The five crystalline forms reported are organic salts of which the crystals and complexes were characterized by X-ray diffraction analysis, IR, mp, and elemental analysis. All supramolecular architectures of salts 1-5 are stabilized by N-H center dot center dot center dot O hydrogen bonds as well as other non-covalent interactions. These weak interactions combined, all the complexes displayed 3D structure. (C) 2011 Elsevier B.V. All rights reserved.
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