期刊
MOLECULAR SIMULATION
卷 36, 期 14, 页码 1123-1130出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/08927022.2010.497923
关键词
molecular dynamics simulation; amino acid; ionic liquid
资金
- National Basic Research Program of China [2009CB219901]
- National Science Fund of China for Distinguished Young Scholar [20625618]
- National Natural Scientific Fund of China [20903098]
A series of 1-alkyl-3-methylimidazolium amino acid ionic liquids (ILs) [Cnmim][Gly] were studied by molecular simulations based on the all-atom force field. Volume expansivity and heat capacities for [C2mim][Gly] were calculated for validating the force field. Site-to-site and centre-of-mass radial distribution functions were investigated to depict the microscopic structures. It is interesting to find that one [Gly]- anion could catch more than two imidazolium rings, and they may arrange approximately parallel to each other. Moreover, aggregation of the alkyl chains was observed in the ILs with alkyl side chains longer than or equal to C4.
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