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Title: Synthesis, characterization and thermal studies of magnesium (II) complexes of ortho and para-aminobenzoic acids
Authors: Srinivasan, B R
Sawant, Sarvesh C
Dhuri, Sunder N
Issue Date: Feb-2002
Publisher: NISCAIR-CSIR, India
Abstract: The reaction of magnesium carbonate with ortho and para -aminobenzoic acid results in the formation of the complexes [Mg(H2O)6](X)2 H2O (X=2-aminobenzoate (2-aba) 1 and X=4-aminobenzoate (4-aba) 2). The 2-aminobenzoatc complex 1 has been characterised by metal analysis, isothermal weight loss studies, infrared, UV-Vis, 1H and 13C NMR spectra and x-ray powder diffraction. The 2-aba complex is relatively unstable as compared to the corresponding 4-aba analogue and slowly decomposes to [Mg(2-aba)2] with the loss of water molecules. This irreversible change is attributed to the disposition of the – NH2 group with respect to the carboxylate group in the six-membered ring.
Page(s): 290-296
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.41A(02) [February 2002]

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