Synthesis and self-association of dibenzothiophene derivatives for simulation of hydrogen bonding interaction in asphaltenes
| Autor: | Daohong Xia, Shaotang Xu, Yinghui Bian, Yulu Zhou, Lijun Zhu, Lechun Song, Yuzhi Xiang |
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| Rok vydání: | 2015 |
| Předmět: |
chemistry.chemical_classification
Absorption spectroscopy Carboxylic acid Energy Engineering and Power Technology Geology Geotechnical Engineering and Engineering Geology Mass spectrometry chemistry.chemical_compound Geophysics Fuel Technology chemistry Geochemistry and Petrology Dibenzothiophene Proton NMR Organic chemistry Physical chemistry Economic Geology Fourier transform infrared spectroscopy Alkyl Benzoic acid |
| Zdroj: | Petroleum Science. 12:501-508 |
| ISSN: | 1995-8226 1672-5107 |
| DOI: | 10.1007/s12182-015-0038-5 |
| Popis: | The dibenzothiophene derivatives, namely 2-(dibenzothiophene-2-carbonyl)benzoic acid and 2-(dibenzothiophene-2-carbonyl)alkyl benzoate, were synthesized and characterized by nuclear magnetic resonance (1H NMR), matrix-assisted laser desorption/ionization time of flight mass spectrometry, and elemental analysis. The self-association behavior of these dibenzothiophene derivatives in CH2Cl2 and CH3CN was investigated using UV–visible absorption spectroscopy, fourier transform infrared spectroscopy, and atomic force microscopy. It was found that the carboxylic acid exhibited a strong self-association trend in CH2Cl2 solution at a concentration of about 5 × 10−7 M. Hydrogen bonding of carboxyl in the dibenzothiophene derivatives was confirmed to be the main driving force for the formation of the carboxylic acid aggregates. |
| Databáze: | OpenAIRE |
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