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Vibrational spectroscopy and density functional theory study of ninhydrin

Author:
Li, Ran   Sui, Huimin   Liu, Peipie   Chen, Lei   Cheng, Jianbo   Zhao, Bing  


Journal:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy


Issue Date:
2015


Abstract(summary):

In this paper, ninhydrin was designed as a model molecule for theoretical and experimental studies of the molecule structure. Density functional theory (DFT) calculations have been performed to predict the IR and Raman spectra for the molecule. In addition, Fourier transform infrared (FTIR) and Raman spectra of the compound have been obtained experimentally. Based on the modeling results obtained at the B3LYP/6-311++G** level, all FTIR and Raman bands of the compound obtained experimentally were assigned. Our calculated vibrational frequencies are in good agreement with the experimental values. The molecular electrostatic potential surface calculation was performed and the result suggested that the ninhydrin had two potential hydrogen bond donors and four potential hydrogen bond acceptors. HOMO-LUMO gap was also obtained theoretically at B3LYP/6-311++G** level. (C) 2014 Elsevier B.V. All rights reserved.


Page:
1642-1648


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