Spectroscopy as a tool to detect multinuclear Cu(ii)-triethanolamine complexes in aqueous solution

Lommens Petra; Tack Pieter; Vander Elst Luce; Van Driessche Isabel; Vincze Laszlo; Sinnaeve Davy

首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Spectroscopy as a tool to detect multinuclear Cu(ii)-triethanolamine complexes in aqueous solution

【24h】

Spectroscopy as a tool to detect multinuclear Cu(ii)-triethanolamine complexes in aqueous solution

机译：作为一种检测多核Cu（II） - 三乙醇胺复合物在水溶液中的光谱学

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Complexes of Cu(ii) with triethanolamine (TEA) are widely used in aqueous precursor solutions of Cu-based catalysts and metal oxides such as YBa2Cu3O7- superconductors. An outstanding question is whether such complexes are multinuclear in solution. Here, we use various spectroscopic techniques to unmistakably prove the existence of such multimers. Firstly, we introduce an original approach based on NMR spectroscopy and the Evans method that establishes the existence of multimers in aqueous solution at pH 4 and higher, and allows precise monitoring of the formation of these complexes with increasing pH. Secondly, we use extended X-ray absorption fine structure (EXAFS) spectroscopy to show that a Cu-Cu interaction exists at pH 9.5, which is not observed in acidic (pH 2) solutions. Finally, NMRD measurements reveal additional structural information regarding the multinuclear complexes. Knowledge concerning the nature of Cu(ii)-TEA complexes in solution is of great relevance in view of the design of speciation models to predict the stability of copper triethanolamine-based precursor solutions.

机译：用三乙醇胺（茶）的Cu（II）的配合物广泛应用于Cu基催化剂的水性前体溶液和金属氧化物，例如YBA2Cu3O7超导体。一个突出的问题是，这种复合物是否在解决方案中是多核。在这里，我们使用各种光谱技术来难以理解地证明这种多数量的存在。首先，我们介绍了一种基于NMR光谱的原始方法，以及evans方法，该方法在pH4和更高的pH值下建立水溶液中的多聚体存在，并且允许精确监测这些配合物的形成随着pH值的增加。其次，我们使用扩展的X射线吸收细结构（EXAFS）光谱，表明在pH9.5处存在Cu-Cu相互作用，其在酸性（pH2）溶液中未观察到。最后，NMRD测量揭示了关于多核复合物的额外结构信息。溶液中Cu（II）的性质的知识是溶液中的综合性鉴于样本模型的设计，以预测基于铜三乙醇胺的前体溶液的稳定性。

著录项

来源
《Dalton transactions: An international journal of inorganic chemistry》 |2018年第11期|共9页
作者
Lommens Petra; Tack Pieter; Vander Elst Luce; Van Driessche Isabel; Vincze Laszlo; Sinnaeve Davy;
展开▼
作者单位

Univ Ghent Dept Chem SCRiPTs Campus Sterre S3 Krijgslaan 281 B-9000 Ghent Belgium;

Univ Ghent Dept Chem XMI Res Grp Campus Sterre S12 Krijgslaan 281 B-9000 Ghent Belgium;

Univ Mons Dept Gen Organ &

Biomed Chem NMR &

Mol Imaging Lab Ave Maistriau 19 B-7000 Mons Belgium;

Univ Ghent Dept Chem SCRiPTs Campus Sterre S3 Krijgslaan 281 B-9000 Ghent Belgium;

Univ Ghent Dept Chem XMI Res Grp Campus Sterre S12 Krijgslaan 281 B-9000 Ghent Belgium;

Univ Ghent Dept Organ &

Macromol Chem NMR &

Struct Anal Unit Campus Sterre S4 Krijgslaan 281 B-9000 Ghent Belgium;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类化学;无机化学;
关键词

相似文献

外文文献
中文文献
专利

1. 乙二胺改性木屑黄原酸盐对水溶液中Cu（II）和Ni（II）离子吸附平衡及动力学 [J] . 夏璐, 胡伊旭, 张博涵中国有色金属学报（英文版） . 2014,第003期
2. Spectroscopy as a tool to detect multinuclear Cu(ii)-triethanolamine complexes in aqueous solution [J] . Lommens Petra, Tack Pieter, Vander Elst Luce, Dalton transactions: An international journal of inorganic chemistry . 2018,第11期

机译：作为一种检测多核Cu（II） - 三乙醇胺复合物在水溶液中的光谱学
3. Studies of reduction of thallium(III) cyanide complexes using thiocyanate with multinuclear NMR in aqueous acidic solution [J] . Raj Kumar Dubey Indian Journal of Chemistry, Section A. Inorganic, Physical, Theoretical & Analytical . 2001,第7期

机译：用硫氰酸盐在酸性溶液中使用硫氰酸钠的铊（III）氰化物复合物的研究
4. A MULTINUCLEAR NMR STUDY ON THE STRUCTURE AND DYNAMICS OF LANTHANIDE(III) COMPLEXES OF THE POLY(AMINO CARBOXYLATE) EGTA(4-) IN AQUEOUS SOLUTION [J] . Aime S., Borel A., Botta M., Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics . 1997,第22期

机译：水溶液中聚（氨基羧酸盐）EGTA（4-）镧系元素（III）配合物的结构和动力学的多核NMR研究
5. Application of Ferrrate(VI) in the Treatment of Industrial Wastes Containing Cu(II)-N TA Complexes in Aqueous Solutions :A Green Chemical Treatment [C] . The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)论文集 . 2008

机译：高铁酸盐（VI）在处理含Cu（II）-N TA配合物的工业废水中的应用：绿色化学处理
6. I. THE ELECTROCHEMISTRY OF NITRIC OXIDE AND A NITROUS ACID AT A MERCURY ELECTRODE IN AQUEOUS SOLUTIONS. II. ELECTROCHEMISTRY AND HYDROLYSIS KINETICS OF THE 2,2'-BIPYRIDINE COMPLEXES OF IRON(III) AND IRON(II); ELECTROCHEMICAL KINETIC PARAMETERS FOR SEVERAL IRON COMPLEXES. III. PROTON NUCLEAR MAGNETIC RESONANCE STUDIES OF URANIUM(IV)-ETHYLENE DIAMINETETRAACETIC ACID COMPLEXES IN AQUEOUS (DEUTERIUM-OXIDE) SOLUTIONS. [D] . EHMAN, DEWAYNE LEE. 1969

机译：I.水溶液中汞电极上一氧化二氮和亚硝酸的电化学二。铁（III）和铁（II）的2,2'-联吡啶络合物的电化学和水解动力学；多种铁络合物的电化学动力学参数。三，铀（IV）-水溶液（氧化氘）中铀（IV）-乙撑双氨基乙酸复合物的质子核磁共振研究
7. Stability and Solution Structure of Binary and Ternary Cu(II) Complexes with l-Glutamic Acid and Diamines as Well as Adducts in Metal-Free Systems in Aqueous Solution [O] . Romualda Bregier-Jarzebowska -1

机译：无金属体系中左旋谷氨酸和二胺以及加合物的二元和三元Cu（II）配合物的稳定性和溶液结构
8. Multinuclear magnetic resonance study of the structure and dynamics of lanthanide(III) complexes of the bis(propylamide) of diethylenetriaminepentaacetic acid in aqueous solution [O] . Geraldes Carlos F. G. C., Urbano Ana M., Hoefnagel Mattheus A., 1993

机译：二亚乙基三胺五乙酸双（丙基酰胺）镧系元素（III）配合物在水溶液中的结构和动力学的多核磁共振研究

Spectroscopy as a tool to detect multinuclear Cu(ii)-triethanolamine complexes in aqueous solution

摘要

著录项

相似文献

相关主题

期刊订阅