Z. Rzączyńska, R. Mrozek, J. Lenik
Aug 1, 2000
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Influential Citations
11
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Journal
Journal of Chemical Crystallography
Abstract
The crystal structures and infrared spectra of 3,4-diaminobenzoic and 3,5-diaminobenzoic acids have been studied. The 3,4-diaminobenzoic acid crystallizes in the monoclinic C2/c space group with a = 22.564(5), b = 3.940(1), c = 15.176(3) Å and β = 103.99(3)°. The IR spectrum reflects the zwitterionic structure of acid. The dimeric 3,5-diaminobenzoic acid crystallizes in the monoclinic P21/c space group with a = 9.150(2), b = 4.886(2), c = 15.763(3) Å, β = 98.56(3)°. In both structures intra- and intermolecular hydrogen bonds are observed.