Spectroscopic studies on intra- and inter-molecular hydrogen bonding in 2,4-dinitrophenol and 3,5-dinitrosalicylic acid |
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| Institution: | 1. Department of Chemistry, Anhui University, Hefei 230601, China;2. School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China |
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| Abstract: | Effect of solvent on the electronic spectral behaviour of 2,4-dinitrophenol (I) and 3,5-dinitrosalicylic acid (II) is examined and discussed. It is deduced that in case of (I) the intramolecular hydrogen bond to nitro breaks to form an intermolecular hydrogen bond depending upon the nature of solvent used whereas (II) remains intramolecularly hydrogen bonded to carbonyl group in solvents as strongly basic as DMF. |
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