Molecular structure, characterization and magnetic properties of novel mixed-valence copper(I,II) alpha,beta-unsaturated carboxylate complexes with triphenylphosphine and methanol ligands
文献类型：期刊论文
| 作者 | Wang, YY; Shi, Q; Shi, QZ; Gao, YC; Hou, X |
| 刊名 | polyhedron
 |
| 出版日期 | 2000-04-30 |
| 卷号 | 19期号:8页码:891-898 |
| 关键词 | copper(I alpha triphenylphosphine magnetic properties crystal structures II) complexes beta-unsaturated carboxylates |
| 英文摘要 | two new mixed-valence tetranuclear copper(i,ii) ol,a-unsaturated carboxylate complexes cu(2)(i)cu(2)(ii)a(6)(pph3)(4)( ch3oh)(2) (1, a = ch2=ch-coo-; 2, a = ch2=c(ch3)-coo- ) have been synthesized by partial reduction of cu(2)a(4)(h2o)(2) by triphenylphosphine in methanol solution, and characterized by elemental analyses, ir, esr, electronic reflectance spectroscopies as well as magnetic susceptibility measurements. in complex 2 two copper(ii) atoms in a molecule are linked by four carboxylate groups forming a dimeric unit cu(2)(ii)a(4), and each copper(ii) atom coordinates with a copper(i) moiety through a mu(2)-o,o' carboxylate group. the electronic reflectance spectra in the solid state suggest a square pyramidal coordination environment around the copper(ii) atoms. bond valence calculations further confirm the presence of the mixed-valence system and the oxidation state of the copper atoms. room temperature x-band esr spectra of powdered samples and variable-temperature magnetic susceptibility studies indicate the presence of strong antiferromagnetic exchange interactions between two copper(ii) atoms, with 2j= - 310 cm(-1) for complex 1 and 2j= - 288 cm(-1) for-complex 2. the formation mechanism of the title complexes and the structural interconversion among related mixed-valence copper(i,ii) carboxylate complexes are also discussed. (c) 2000 elsevier science ltd all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, inorganic & nuclear ; crystallography |
| 研究领域[WOS] | chemistry ; crystallography |
| 关键词[WOS] | rich coordination environments ; crystal-structure ; derivatives ; reactivity ; models |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000087327200002 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/25411]  |
| 专题 | 西安光学精密机械研究所_中国科学院西安光学精密机械研究所(2010年前) |
| 作者单位 | 1.NW Univ Xian, Dept Chem, Xian 710069, Peoples R China 2.Lanzhou Univ, Dept Chem, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710069, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, YY,Shi, Q,Shi, QZ,et al. Molecular structure, characterization and magnetic properties of novel mixed-valence copper(I,II) alpha,beta-unsaturated carboxylate complexes with triphenylphosphine and methanol ligands[J]. polyhedron,2000,19(8):891-898. |
| APA | Wang, YY,Shi, Q,Shi, QZ,Gao, YC,&Hou, X.(2000).Molecular structure, characterization and magnetic properties of novel mixed-valence copper(I,II) alpha,beta-unsaturated carboxylate complexes with triphenylphosphine and methanol ligands.polyhedron,19(8),891-898. |
| MLA | Wang, YY,et al."Molecular structure, characterization and magnetic properties of novel mixed-valence copper(I,II) alpha,beta-unsaturated carboxylate complexes with triphenylphosphine and methanol ligands".polyhedron 19.8(2000):891-898. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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