Experimental and theoretical IR, Raman, NMR spectra of 2-, 3- and 4-aminobenzoic acids

Characteristics and Engineering Performance of C-S-H/Aminobenzoic Acid Composite Systems

“…This is opposite to the electronegative properties of the nitro group resulting in deactivation of the aromatic ring in the nitrobenzoic acid molecule (Samsonowicz et al 2005(Samsonowicz et al , 2007. It has been suggested that the acidity of the aminobenzoic acid isomers, increases in the order of 3-ABA > 4-ABA > 2-ABA (Samsonowicz et al 2005). The acidity of the nitrobenzoic acid isomers, however, increases in the opposite order (2-NBA > 4-NBA > 3-NBA) (Samsonowicz et al 2007).…”

“…However, the amino group is electropositive and an activating group of the aromatic ring. This is opposite to the electronegative properties of the nitro group resulting in deactivation of the aromatic ring in the nitrobenzoic acid molecule (Samsonowicz et al 2005(Samsonowicz et al , 2007. It has been suggested that the acidity of the aminobenzoic acid isomers, increases in the order of 3-ABA > 4-ABA > 2-ABA (Samsonowicz et al 2005).…”

Identification of Structural and Spectral Features of 2-Amino 4-Chlorobenzoic Acid and 4-Amino 2-Chlorobenzoic Acid: A Comparative Experimental and DFT Study

“…Derivative of benzoic acid is an essential component of the vitamin complex [2]. 2-Aminobenzoic acid is known as vitamin L, whereas 4-Aminobenzoic acid is known as vitamin B and bacterial vitamin H. Vitamin B complex is a group of water-soluble substances including possible 4-Aminobenzoic acid, which is known as antibacterial agent [3]. Vitamin B complex is used in miticides, contrast media in urology, cholecystographic examinations and in the manufacture of pharmaceuticals [4,5].…”

“…A detailed structural analysis of 2-Amino-5-Chlorobenzoic acid was carried out by Karabacak and Çınar [8]. Samsonowicz et al have recorded the effect of amino group substituted at 2-, 3-, 4-position of benzoic acid [3]. Sundaragenasan et al [2,4,9,10] have recorded the FT-IR and FT-Raman spectra of 2-Amino-4,5-difluorobenzoic acid, 5-Amino-2-Chlorobenzoic acid, 5-Amino-2-nitrobenzoicacid and 2-Chlorobenzoic acid.…”

Experimental and theoretical study on benzoic acid derivatives

“…Benzoic acid [14] p-Hydroxybenzoic acid [15] m-Anisic acid [16] Vanillic acid [ proton-donor activity of the carboxylic group. As a result of these substitutions linear dimers are formed in microcrystals of vanillic acid, where C@O and carboxylic OH groups interact with the phenol OH group via hydrogen bonds (ArAOAHÁ Á ÁO@C(Ar)AOAHÁ Á Á O@C(Ar)AO(H)Á Á ÁHAOAAr).…”