The Real Structure of Pd(OAc)_(2)in Various Solvents

作     者：Dongchao Zhang Dali Yang Shengchun Wang Li Zeng Jie Xin Heng Zhang Aiwen Lei Dongchao Zhang;Dali Yang;Shengchun Wang;Li Zeng;Jie Xin;Heng Zhang;Aiwen Lei

作者机构：The Institute for Advanced Studies(IAS)College of Chemistry and Molecular SciencesWuhan UniversityWuhanHubei430072 China State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences345 Lingling LuShanghai200032 China 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：2021年第39卷第2期

页      面：307-311页

核心收录：

学科分类：07[理学] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：This work was supported by the National Natural Science Foundation of China(No.21520102003) the Hubei Province Natural Science Foundation of China(No.2017CFA010) The Program of Introducing Talents of Discipline to Universities of China(111 Program)is also appreciated.All the XAFS data were collect-ed at beam line 44A of the TPS. 

主　　题：Palladium X-ray absorption spectroscopy Structure elucidation Solvent effects EXAFS spectroscopy 

摘      要：Pd(OAc)_(2) is an extensively utilized palladium source in the palladium initiated transformations either directly or as a catalyst precursor. However, the comprehension of the real structure of Pd(OAc)_(2) in solution is still vague. In this work, the structure of palladium acetate in solution was studied in detail by using X-ray absorption fine structure (XAFS) spectroscopy. The results demonstrate that monomer is the main form for Pd(OAc)_(2) in the solution of 1,4-dioxane, N,N-dimethylacetamide (DMA), N,N-dimethylformamide (DMF), 1,2-dimethoxyethane (DME), MeCN and dimethyl sulfoxide (DMSO). In addition, Pd(II) could be reduced to Pd(0) in ethanol solution. The structural information in this research will benefit the understanding of the mechanism of Pd(OAc)_(2) involved organic reactions.