Structure and Dynamics of Liquid Diphenyl Carbonate Investigated by Molecular Dynamics Simulations

نویسنده

  • Hendrik Meyer
چکیده

We study liquid diphenyl carbonate (DPC) with molecular dynamics simulations in the temperature range from 350 to 600 K. The diiusion behavior as well as structural and relaxation properties of this complex liquid are analyzed in detail. To this end, an all-atom force eld is developed for DPC. We studied two sets of partial charges and the innuence of the torsion barrier at the carbonate group. We discuss radial distribution functions, orientation distribution functions and orientation correlation functions of subgroups of the molecule. The ip frequency of the dihedral angles of the phenyl rings and of the carbonate group are also considered. The internal exibility and the nonspherical form of the molecule highly improve the diiusion process, whereas the height of the carbonate group torsion barrier is not a crucial parameter.

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تاریخ انتشار 1999