Influence of alkaline earth metals on molecular structure of 3-nitrobenzoic acid in comparison with alkali metals effect

► Influence of alkaline earth metals on molecular structure of 3-nitrobenzoic acid in comparison with alkali metals effect. ► IR, NMR spectra and DFT-B3LYP method calculation. ► Aromaticity of alkaline earth metal 3-nitrobenzoates is lower than those of alkali metal.