Ru(EDTA) mediated partial reduction of O-2 by H2S

Chatterjee Debabrata; Jaiswal Namita; Sarkar Papiya

首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Ru(EDTA) mediated partial reduction of O-2 by H2S

【24h】

Ru(EDTA) mediated partial reduction of O-2 by H2S

机译：Ru（EDTA）介导H2S还原O-2

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

An effective procedure for selective reduction of O-2 to H2O2 exploring the use of hydrogen sulfide, an obnoxious industrial pollutant as reductant is reported herein. The reduction of [Ru-III(EDTA) pz](-) (EDTA(4-) = ethylenediaminetetraacetate; pz = pyrazine) by hydrogen sulfide resulting in the formation of a red [Ru-II(EDTA) pz](2-) complex (lambda(max) = 462 nm) has been studied spectrophotometrically and kinetically using both rapid scan and stopped-flow techniques. The time course of the reaction was followed as a function of [HS-](i), pH (5.5-8.5), and temperature. Alkali metal ions were found to have a positive influence (K+ > Na+ > Li+) on the reaction rate. Kinetic data and activation parameters are interpreted in terms of a mechanism (admittedly speculative) involving outer-sphere electron transfer between the reaction partners. Reaction of the red [Ru-II(EDTA) pz](2-) complex with molecular oxygen regenerates the [Ru-III(EDTA) pz]species in the reacting system along with the formation of H2O2, a partially reduced product of dioxygen (O-2) reduction. A detailed reaction mechanism in agreement with the spectral and kinetic data is presented.

机译：本文报道了探索使用硫化氢（一种令人讨厌的工业污染物）作为还原剂的将O-2选择性还原为H2O2的有效程序。硫化氢还原[Ru-III（EDTA）pz]（-）（EDTA（4-）=乙二胺四乙酸盐; pz =吡嗪），导致形成红色[Ru-II（EDTA）pz]（2- ）（lambda（max）= 462 nm）已使用快速扫描和停止流技术进行分光光度法和动力学研究。反应时间随[HS-]（i），pH（5.5-8.5）和温度的变化而变化。发现碱金属离子对反应速率具有积极影响（K +> Na +> Li +）。动力学数据和激活参数是根据涉及反应伙伴之间的外层电子转移的机理（公认地推测）来解释的。红色[Ru-II（EDTA）pz]（2-）配合物与分子氧的反应在反应体系中再生了[Ru-III（EDTA）pz]物种，并形成了H2O2（一种部分还原的双氧产物）（O-2）还原。给出了与光谱和动力学数据一致的详细反应机理。

著录项

来源
《Dalton transactions: An international journal of inorganic chemistry》 |2015年第16期|共5页
作者
Chatterjee Debabrata; Jaiswal Namita; Sarkar Papiya;
展开▼
作者单位

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词

相似文献

外文文献
中文文献
专利

1. Ru(EDTA) mediated partial reduction of O-2 by H2S [J] . Chatterjee Debabrata, Jaiswal Namita, Sarkar Papiya Dalton transactions: An international journal of inorganic chemistry . 2015,第16期

机译：Ru（EDTA）介导H2S还原O-2
2. MIXED VALENCE PROPERTIES OF AN NEW BINUCLEAR COMPLEX, [(EDTAH)RU-IIINCRU-II(CN)(5)](4-) AND KINETIC STUDIES OF THE AQUA SUBSTITUTION REACTION IN RU-III(EDTA)(H2O)(-) BY RU(CN)(6)(4-) [J] . Bajaj HC., Das A. Polyhedron: The International Journal for Inorganic and Organometallic Chemistry . 1997,第21期

机译：新型双核络合物[（EDTAH）RU-IIINCRU-II（CN）（5）]（4-）的混合价性质及RU-III（EDTA）（H2O）（-）中水取代反应的动力学研究通过RU（CN）（6）（4-）
3. Computation provides chemical insight into the diverse hydride NMR chemical shifts of [Ru(NHC)(4)-( L)H](0/+) species (NHC = N-heterocyclic carbene; L = vacant, H-2, N-2, CO, MeCN, O-2, P-4, SO2, H-, F- and Cl-) and their [Ru(R2PCH2CH2PR2)(2)(L)H](+) congeners [J] . Haller L. Jonas L., Mas-Marza Elena, Cybulski Mateusz K., Dalton transactions: An international journal of inorganic chemistry . 2017,第9期

机译：计算为[Ru（NHC）（4）（4） - （L）H]（0 / +）物种（NHC = N-杂环切菜; L =空位，H-2，N-）提供了化学洞察化学型偏见 2，CO，MECN，O-2，P-4，SO2，H-，F-和CL-）及其[Ru（R2PCH2CH2PR2）（2）（L）H]（+）同一
4. Syntheses and Crystal Structure of Nine-Coordinate Mononuclear Na EuⅢ (edta)(H2O)3 · 4H2O and Binuclear Na4Eu2Ⅲ(Httha)2·10H2O Complexes [C] . International Conference on Rare Earth Research and Application; 2004; . 2004

机译：九配位单核Na EuⅢ（edta）（H2O）3·4H2O和双核Na4 Eu2Ⅲ（Httha）2·10H2O配合物的晶体结构
5. Reductive Transformations Mediated by Samarium(II) Iodide: The Enabling Use of H2O as an Additive [D] . Sautier, Brice. 2013

机译：钐（II）碘化物介导的还原转化：使H2O的使用作为添加剂
6. Ru(ii)–Re(i) binuclear photocatalysts connected by –CH2XCH2– (X = O S CH2) for CO2 reduction [O] . Eishiro Kato, Hiroyuki Takeda, Kazuhide Koike, 2015

机译：通过–CH2XCH2–（X = OSCH2）连接的Ru（ii）-Re（i）双核光催化剂可减少CO2
7. Adsorção do complexo H[Ru(III)Cl2(H2EDTA)] sobre a superfície da sílica gel modificada com [3-(2-aminoetil) aminopropil]trimetoxissilano em soluções etanólicas Adsorption of H[Ru(III)Cl2(H2EDTA)] complex on modified silica gel surface with [3-(2-aminoethyl)aminopropyl]trimethoxysilane in ethanol solutions [O] . Angélica Machi Lazarin, Rosana Lázara Sernaglia 1999

机译：H复合吸附[Ru（III）Cl2（H2EDTa）＆＃093;在[3-（2-氨基乙基）氨基丙基]三甲氧基硅烷改性硅胶表面的乙醇溶液中吸附H [Ru（III）Cl2（H2EDTa）＆＃093;用[3-（2-氨基乙基）氨基丙基]三甲氧基硅烷在乙醇溶液中修饰的硅胶表面复合物

Ru(EDTA) mediated partial reduction of O-2 by H2S

摘要

著录项

相似文献

相关主题

期刊订阅