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Construction of a molecular structure model of mild-oxidized Chinese lignite using Gaussian09 based on data from FTIR, solid state 13C-NMR

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Abstract

Great progress has been made in the detection of fractions from oxidized lignite, but no molecular structures are reported. A molecular structure model of oxidized Shengli lignite was constructed using ultimate analysis, 13C nuclear magnetic resonance spectrum (NMR), and Fourier transform infrared spectroscopy (FTIR). Parameters are derived from PeakFit4.12 and MestReNova software. Gaussian09 software was used to optimize the model and calculate the FTIR, and the calculated spectrogram is consistent with the experimental one. The molecular formula of the structure model was C96H95O45N, and aromatic rings were mainly linked by oxygen containing functional groups. The electrostatic potential of the structure model was analyzed to explain the great solubility and a good deal of carboxyl acids.

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Acknowledgments

The authors are grateful to National Natural Science Foundation of China (Grant No. 51574237, 51274197), and the 111 Project (No.B12030) for the financial support to this work.

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Authors and Affiliations

  1. Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, NO.1 Daxve road, Xuzhou City, 221116, Jiangsu Prov, China

    Youzhi Lu, Li Feng, Xiangang Jiang, Yingya Zhao, Guangyao Zhao & Chuanzhou Yuan

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  1. Youzhi Lu
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  2. Li Feng
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  3. Xiangang Jiang
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  4. Yingya Zhao
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  5. Guangyao Zhao
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Correspondence to Li Feng.

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Lu, Y., Feng, L., Jiang, X. et al. Construction of a molecular structure model of mild-oxidized Chinese lignite using Gaussian09 based on data from FTIR, solid state 13C-NMR. J Mol Model 24, 135 (2018). https://doi.org/10.1007/s00894-018-3677-9

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  • DOI: https://doi.org/10.1007/s00894-018-3677-9

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