{"title":"根据 X 射线衍射分析得出的硝酸铈水溶液中离子配位的结构参数","authors":"P. R. Smirnov, O. V. Grechin","doi":"10.1134/S0022476624070096","DOIUrl":null,"url":null,"abstract":"<p>Based on the experimental data of the X-ray diffraction analysis, radial distribution functions are calculated in a wide concentration range of aqueous cerium nitrate solutions under standard conditions. Different models of the structural organization of systems are elaborated. By the calculation of theoretical functions for each model and their comparison with the experimental ones the optimal variants are revealed. Quantitative characteristics of the structure of the nearest environment of Ce<sup>3+</sup> and <span>\\(\\text{NO}^{-}_3\\)</span> ions, such as coordination numbers and interparticle distances, are determined along with the types of ionic pairs. The structure of the saturated solution is found to be governed by non-contact ion triples. A decrease in the concentration leads to their transformation into ionic pairs.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structural Parameters of Ion Coordination in Aqueous Solutions of Cerium Nitrate According to the X-Ray Diffraction Analysis\",\"authors\":\"P. R. Smirnov, O. V. Grechin\",\"doi\":\"10.1134/S0022476624070096\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Based on the experimental data of the X-ray diffraction analysis, radial distribution functions are calculated in a wide concentration range of aqueous cerium nitrate solutions under standard conditions. Different models of the structural organization of systems are elaborated. By the calculation of theoretical functions for each model and their comparison with the experimental ones the optimal variants are revealed. Quantitative characteristics of the structure of the nearest environment of Ce<sup>3+</sup> and <span>\\\\(\\\\text{NO}^{-}_3\\\\)</span> ions, such as coordination numbers and interparticle distances, are determined along with the types of ionic pairs. The structure of the saturated solution is found to be governed by non-contact ion triples. A decrease in the concentration leads to their transformation into ionic pairs.</p>\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2024-07-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0022476624070096\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S0022476624070096","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
摘要 根据 X 射线衍射分析的实验数据，计算了标准条件下硝酸铈水溶液在较宽浓度范围内的径向分布函数。阐述了系统结构组织的不同模型。通过计算每个模型的理论函数并将其与实验函数进行比较，发现了最佳变体。确定了 Ce3+ 和（\text{NO}^{-}_3\）离子最近环境结构的定量特征，如配位数和粒子间距离，以及离子对的类型。发现饱和溶液的结构受非接触离子三元组的支配。浓度的降低会导致它们转变为离子对。
Structural Parameters of Ion Coordination in Aqueous Solutions of Cerium Nitrate According to the X-Ray Diffraction Analysis
Based on the experimental data of the X-ray diffraction analysis, radial distribution functions are calculated in a wide concentration range of aqueous cerium nitrate solutions under standard conditions. Different models of the structural organization of systems are elaborated. By the calculation of theoretical functions for each model and their comparison with the experimental ones the optimal variants are revealed. Quantitative characteristics of the structure of the nearest environment of Ce3+ and \(\text{NO}^{-}_3\) ions, such as coordination numbers and interparticle distances, are determined along with the types of ionic pairs. The structure of the saturated solution is found to be governed by non-contact ion triples. A decrease in the concentration leads to their transformation into ionic pairs.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
