Crystalline hydrates of calix[4]arene-para-sulfonic acid with n (n = 6–16) water molecules: a structure modeling
- 作者: Zyubina T.1, Shmygleva L.1, Pisarev R.1, Zyubin A.1, Pisareva A.1, Dobrovolsky Y.1, Volokhov V.1
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隶属关系:
- Institute of Problems of Chemical Physics, Russian Academy of Sciences
- 期: 卷 66, 编号 1 (2017)
- 页面: 62-69
- 栏目: Full Articles
- URL: https://journals.rcsi.science/1066-5285/article/view/239798
- DOI: https://doi.org/10.1007/s11172-017-1700-4
- ID: 239798
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详细
The structures of crystalline hydrates of calix[4]arene-para-sulfonic acid with n (n = 6–16) water molecules and the activation barriers to surface proton migration were calculated within the framework of the density functional theory (DFT) using the PBE gradient-corrected functional, the "hard" basis set of projector-augmented waves (PAW), a corresponding pseudopotential, periodic boundary conditions, and the VASP program package. The energies of formation of crystalline hydrates from calix[4]arene-para-sulfonic acid and n water molecules calculated per water molecule are in the range of 0.4–0.9 eV and depend on n. The adsorption energy of water on the surface is in the range of 0.5–0.7 eV. The activation barriers to proton transfer across the surface calculated for the most stable crystal (n = 8) are close to experimental data and depend on the number of superstoihiometric water molecules, being equal to ~0.2 eV provided three superstoihiometric water molecules per surface SO3H group.
作者简介
T. Zyubina
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: zyubin@icp.ac.ru
俄罗斯联邦, 1 prosp. Akad. Semenova, Moscow Region, 142432 Chernogolovka
L. Shmygleva
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: zyubin@icp.ac.ru
俄罗斯联邦, 1 prosp. Akad. Semenova, Moscow Region, 142432 Chernogolovka
R. Pisarev
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: zyubin@icp.ac.ru
俄罗斯联邦, 1 prosp. Akad. Semenova, Moscow Region, 142432 Chernogolovka
A. Zyubin
Institute of Problems of Chemical Physics, Russian Academy of Sciences
编辑信件的主要联系方式.
Email: zyubin@icp.ac.ru
俄罗斯联邦, 1 prosp. Akad. Semenova, Moscow Region, 142432 Chernogolovka
A. Pisareva
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: zyubin@icp.ac.ru
俄罗斯联邦, 1 prosp. Akad. Semenova, Moscow Region, 142432 Chernogolovka
Yu. Dobrovolsky
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: zyubin@icp.ac.ru
俄罗斯联邦, 1 prosp. Akad. Semenova, Moscow Region, 142432 Chernogolovka
V. Volokhov
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: zyubin@icp.ac.ru
俄罗斯联邦, 1 prosp. Akad. Semenova, Moscow Region, 142432 Chernogolovka