CAS OpenIR  > 研究所(批量导入)
Structure of organophosphorus acid extractants and their steric effect
Alternative TitleChin. J. Inorg. Chem.
Zhu, T
2000-03-01
Source PublicationCHINESE JOURNAL OF INORGANIC CHEMISTRY
ISSN1001-4861
Volume16Issue:2Pages:305-309
AbstractSteric 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.; 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.
KeywordOrganophosphorus Acid Extractants Steric Effect Cobalt Nickel Solvent Extraction
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
URL查看原文
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Inorganic & Nuclear
WOS IDWOS:000086077200019
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6077
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Chem Met, Beijing 100080, Peoples R China
Recommended Citation
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.
Files in This Item:
File Name/Size DocType Version Access License
有机磷酸萃取剂的结构及其立体效应_朱屯.(177KB) 限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhu, T]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhu, T]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhu, T]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.