Polarizable and non-polarizable force field representations of ferric cation and validations
文献类型：期刊论文
| 作者 | Xia, Miaoren1; Chai, Zhifang1,2; Wang, Dongqi1 |
| 刊名 | Journal of physical chemistry b
 |
| 出版日期 | 2017-06-15 |
| 卷号 | 121期号:23页码:5718-5729 |
| ISSN号 | 1520-6106 |
| DOI | 10.1021/acs.jpcb.7b02010 |
| 通讯作者 | Wang, dongqi(dwang@ihep.ac.cn) |
| 英文摘要 | The amoeba polarizable force field of ferric ion was optimized and applied to study the hydration of ferric ion and its complexation with porphine in the aqueous phase. the nonpolarizable force field was also optimized for comparison. the amoeba force field was found to give a more accurate hydration free energy than the nonpolarizable force field with respect to experimental data, and correctly predict the most stable electronic state of hydrated fe3+, which is the sextet state, and of the fe-(iii)- por complex, which is the quartet state, consistent with the literature that was carried out using the dft method. the explicit inclusion of charge transfer between fe3+ and ligand was found to be important in order to obtain a precise picture of polarization energy and van der waals energy, which otherwise deviate from the corresponding energy components derived from ab initio calculations. the successful application of the amoeba force field in the characterization of aquo fe-(iii)-por complexes suggests that its use may be extended to the study of the dynamics of metalloenzyme containing highly charged metal ions in the condensed phase with reliable treatment of the interactions between metal atom and protein. |
| WOS关键词 | MOLECULAR-ORBITAL METHODS ; AUGMENTED BASIS-SETS ; GAUSSIAN-TYPE BASIS ; FREE-ENERGY ; MECHANICAL CALCULATIONS ; COUPLING REACTIONS ; ORGANIC-MOLECULES ; 2ND-ROW ELEMENTS ; IONIC HYDRATION ; MP2 ENERGY |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000403731400005 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177337 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Wang, Dongqi |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Multidisciplinary Initiat Ctr, Beijing 100049, Peoples R China 2.Soochow Univ, Sch Radiat Med & Interdisciplinary Sci RAD X, Suzhou 215123, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, Miaoren,Chai, Zhifang,Wang, Dongqi. Polarizable and non-polarizable force field representations of ferric cation and validations[J]. Journal of physical chemistry b,2017,121(23):5718-5729. |
| APA | Xia, Miaoren,Chai, Zhifang,&Wang, Dongqi.(2017).Polarizable and non-polarizable force field representations of ferric cation and validations.Journal of physical chemistry b,121(23),5718-5729. |
| MLA | Xia, Miaoren,et al."Polarizable and non-polarizable force field representations of ferric cation and validations".Journal of physical chemistry b 121.23(2017):5718-5729. |
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来源：高能物理研究所
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