Petroleum Science >2015,??Issue 3:??501-508 DOI: https://doi.org/10.1007/s12182-015-0038-5
Synthesis and self-association of dibenzothiophene derivativesfor simulation of hydrogen bonding interaction in asphaltenes Open?Access
文章信息
State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China;State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China;State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China;State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China;State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China;State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China;State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
文章摘要
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 selfassociation
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 9
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.
关键词
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Dibenzothiophene derivatives Association Hydrogen bonding Simulation Asphaltenes