Lanthanide tetrad effects : Extension of Jorgensen's theory and its new developments

镧系元素四分体效应：乔根森理论的延伸及其新发展

• 批准号: 21654081
• 负责人: KAWABE Iwao
• 金额: $ 2.12万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21654081/
• 关键词: 地殻・マントル物質; 地球化学; 希土類元素化学; ランタニド化学; 四組効果; 希土類元素; ヨルゲンセン-川邊式; REE分配係数; 希土類元素鉱物; ランタニド; ランタニド四組効果; ヨルゲンセン理論; 電子雲拡大効果; ランタニド・キレート錯体; ヨルゲンセン・川邊の式; ランタニドの熱力学; 熱力学量

As a case study of thermodynamic data for aqueous Ln(III)-chelate complex formations, those data for Ln(III)-DTPA and Ln-EDTA complex formations have been examined in view of the Jorgensen-Kawabe(JK) equation for the lanthanide tetrad effect. Ln-chelate formations represent such reactions that ligands of H-2O of aqua Ln(III) ions are replaced by(DTPA+H-2O) or(EDTA+H-2O), where. H and. S show similar tetrad effects, but the tetrad effects are cancelled almost totally in. G through. G=. H-T. S. Previous studies overlooked this mechanism, and led to misunderstanding.As an experimental study, REE(Ln+Y) partition coefficients for the pair of BaSO4/aqueous solution have been determined in the temperature range of 10~ 200. C. The tetrad effects of△H and△S for REE partitioning reaction have been shown. Using the Gibbs-Helmholtz equation and JK equation, the tetrad effects have been analyzed.REE abundance patterns of rare-earth minerals(kimuraite and lanthanite) normalized by chondrite, indicate the tetrad effects. We confirmed that the tetrad effects can be well reproduced by JK equation. This is the first demonstration in REE geochemistry that REE compositions of REE minerals can be fitted to the simple theoretical equation.In order help graduate students and young researchers understand the theoretical base of Jorgensen-Kawabe equation, the three textbooks on Statistical Mechanics, Physics on Electricity and Magnetism, Quantum Mechanics have been prepared and registered them in Repository of NU Library for their open uses. Jorgensen-Kawabe equation itself and the results of the present study are discussed and cited in another textbook"REE Chemistry and Geochemistry", which is now in preparation.

由于ASE的热力学数据（III） - 智酸盐的形成e，鉴于Jorgensen -Kawabe（JK）方程的灯笼效应。效果几乎被取消。 n个商店。使用Gibbs-Helmholtz方程和JK方程，tetrad效应已被造成。 JK等式。磁性，量子力学ED并在NU库的存储库中注册，以开放用途。

项目成果

ランタニド(III)酸化物系列のエンタルピ-温度変化とJorgensen-Kawabe式の新展開

镧系(III)氧化物系列的焓-温度变化和Jorgensen-Kawabe方程的新发展

• 发表时间: 2009
• 作者: Pascucci I.;Tachibana S.;川邊岩夫・平原靖大
• 通讯作者: 川邊岩夫・平原靖大

川邊岩夫,量子力学の基礎事項

川部岩生，量子力学基础

BaSO-4/水溶液系におけるREE分配係数の温度変化(10～200℃):固相REE^<3+>の結合状態変化と分配反応ΔH-rとΔS-rの四組効果

BaSO-4/水溶液体系中REE分配系数的温度变化（10-200℃）：固相REE^<3+>键态的变化及分配反应ΔH-r和ΔS-r的四重效应

• 发表时间: 2011
• 作者: Kita N.T.;Nagahara H.;Tachibana S.;Tomomura S.;Spicuzza M.J.;Fournelle J.H.;Valley J.W.;川邊岩夫,奥村友幸
• 通讯作者: 川邊岩夫,奥村友幸

Reexamination of natural kimuraite and synthetic experiment of kimuraite

天然金村石的复查及金村石的合成实验

• 发表时间: 2011
• 作者: Jiao Wenfang;Kawabe;I.;and Kato;T.
• 通讯作者: T.

ランタニド・二水素化物系列の標準生成エンタルピー:Jorgensen-Kawabe式から推定するRacahパラメーター

镧系二氢化物系列的标准形成焓：根据 Jorgensen-Kawabe 方程估计的 Racah 参数

• 发表时间: 2010
• 作者: 酒井理紗;久城育夫;永原裕子;小澤一仁;橘省吾;川邊岩夫
• 通讯作者: 川邊岩夫