
TY  - JOUR
A1  - Lynch, DE 
A1  - Smith, G 
A1  - Byriel, KA 
A1  - Kennard, CHL 
T1  - Molecular Cocrystals of Carboxylic Acids. XIX. The Crystal Structures of Two Adducts of 3-Aminobenzoic Acid With 3,5-Dinitrobenzoic Acid: the 1:1 and the 2:2 Hydrate Cocrystals
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1994
VL  - 47
IS  - 9
SP  - 1789
EP  - 1798
KW  - 
UR  - https://doi.org/10.1071/CH9941789 
N2  - Two cocrystalline molecular adducts of 3-aminobenzoic acid (3-aba) with the aromatic carboxylic acid 3,5-dinitrobenzoic acid (dnba), [(3-aba)(dnba)](1) and [(3-aba)2(dnba)2(H2O)] (2), have been prepared and their hydrogen-bonding associations determined by means of single-crystal X-ray diffraction. Complex (1) is similar to known 1:1 complexes of 4-aminobenzoic acid with other aromatic acids, with protonation of the amine group and carboxylic acid-carboxylate hydrogen-bonding associations. However, the 2:2 hydrate complex (2) has only one hetero-pair involved in proton transfer, the other remaining neutral. With both compounds there is an extensive hydrogen-bonding network involving all substituent functional groups as well as the lattice water in compound (2). 
ER  -

