Direct Observation of Reduction of Cu(II) to Cu(I) by Terminal Alkynes

Journal Article · Mon Jan 06 00:00:00 EST 2014 · Journal of the American Chemical Society

DOI:https://doi.org/10.1021/ja410756b· OSTI ID:1241303

Zhang, Guanghui; Yi, Hong; Zhang, Guoting; Deng, Yi; Bai, Ruopeng; Zhang, Heng; Miller, Jeffrey T.; Kropf, Arthur J.; Bunel, Emilio E.; Lei, Aiwen

ABSTRACT: X-ray absorption spectroscopy and in situ electron paramagnetic resonance evidence were provided for the reduction of Cu(II) to Cu(I) species by alkynes in the presence of tetramethylethylenediamine (TMEDA), in which TMEDA plays dual roles as both ligand and base. The structures of the starting Cu(II) species and the obtained Cu(I) species were determined as (TMEDA)- CuCl2 and [(TMEDA)CuCl]2 dimer, respectively.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: Wuhan University; Argonne National Laboratory - Chemical Sciences and Engineering Division; National Natural Science Foundation of China (NNSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES); Materials Research Collaborative Access Team (MRCAT); USDOE Office of Science - Office of Basic Energy Sciences - Chemical Sciences, Geosciences, and Biosciences Division
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1241303
• Journal Information: Journal of the American Chemical Society, Vol. 136; ISSN 0002-7863
• Publisher: American Chemical Society (ACS)
• Country of Publication: United States
• Language: English