Structure of organophosphorus acid extractants and their steric effect
文献类型：期刊论文
| 作者 | Zhu, T |
| 刊名 | CHINESE JOURNAL OF INORGANIC CHEMISTRY
 |
| 出版日期 | 2000-03-01 |
| 卷号 | 16期号:2页码:305-309 |
| 关键词 | organophosphorus acid extractants steric effect cobalt nickel solvent extraction |
| ISSN号 | 1001-4861 |
| 其他题名 | Chin. J. Inorg. Chem. |
| 中文摘要 | Steric effect of organophosphorus acid extractants (OPA) with the structure of R(R')P(O)OH plays an important role in the selectivity for different metals. Until now, there is no widely accepted structure parameter for description of the effect. It is suggested in the present paper to take the angle between the two substituting groups and the phosphorous atom, angle RPR' as the steric parameter of the extactants. In an octahedral configuration of the extracts, the substituting groups from the two coor-inated OPA are approximately in the same plane, larger the angle RPR', larger the interaction between them, resulting in a higher steric effect. In a tetrahedral configuration, the substituted groups sre located in two perpendicular planes, the streric effect is much weaker. As Co2+ is extracted by OPA, the change of the thermodynamic parameters of conversion of octahedral to tetrahedral configuration of the cobalt extracts is in accordance with the angle RPR' of the extractants. |
| 英文摘要 | Steric effect of organophosphorus acid extractants (OPA) with the structure of R(R')P(O)OH plays an important role in the selectivity for different metals. Until now, there is no widely accepted structure parameter for description of the effect. It is suggested in the present paper to take the angle between the two substituting groups and the phosphorous atom, angle RPR' as the steric parameter of the extactants. In an octahedral configuration of the extracts, the substituting groups from the two coor-inated OPA are approximately in the same plane, larger the angle RPR', larger the interaction between them, resulting in a higher steric effect. In a tetrahedral configuration, the substituted groups sre located in two perpendicular planes, the streric effect is much weaker. As Co2+ is extracted by OPA, the change of the thermodynamic parameters of conversion of octahedral to tetrahedral configuration of the cobalt extracts is in accordance with the angle RPR' of the extractants. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Inorganic & Nuclear |
| 研究领域[WOS] | Chemistry |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000086077200019 |
| 公开日期 | 2013-11-15 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6077]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Inst Chem Met, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, T. Structure of organophosphorus acid extractants and their steric effect[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2000,16(2):305-309. |
| APA | Zhu, T.(2000).Structure of organophosphorus acid extractants and their steric effect.CHINESE JOURNAL OF INORGANIC CHEMISTRY,16(2),305-309. |
| MLA | Zhu, T."Structure of organophosphorus acid extractants and their steric effect".CHINESE JOURNAL OF INORGANIC CHEMISTRY 16.2(2000):305-309. |
入库方式： OAI收割
来源：过程工程研究所
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