TY - JOUR
T1 - Isolation of neutral mononuclear copper complexes stabilized by two cyclic (Alkyl)(amino)carbenes
AU - Weinberger, David S.
AU - Amin Sk, Nurul
AU - Mondal, Kartik Chandra
AU - Melaimi, Mohand
AU - Bertrand, Guy
AU - Stückl, A. Claudia
AU - Roesky, Herbert W.
AU - Dittrich, Birger
AU - Demeshko, Serhiy
AU - Schwederski, Brigitte
AU - Kaim, Wolfgang
AU - Jerabek, Paul
AU - Frenking, Gernot
PY - 2014/4/30
Y1 - 2014/4/30
N2 - Two (cAAC)2Cu complexes, featuring a two-coordinate copper atom in the formal oxidation state zero, were prepared by reducing (Et 2-cAAC)2Cu+I- with metallic sodium in THF, and by a one-pot synthesis using Me2-cAAC, Cu(II)Cl 2, and KC8 in toluene in a molar ratio of 2:1:2, respectively. Both complexes are highly air and moisture sensitive but can be stored in the solid state for a month at room temperature. DFT calculations showed that in these complexes the copper center has a d10 electronic configuration and the unpaired electron is delocalized over two carbene carbon atoms. This was further confirmed by the EPR spectra, which exhibit multiple hyperfine lines due to the coupling of the unpaired electron with 63,65Cu isotopes, 14N, and 1H nuclei.
AB - Two (cAAC)2Cu complexes, featuring a two-coordinate copper atom in the formal oxidation state zero, were prepared by reducing (Et 2-cAAC)2Cu+I- with metallic sodium in THF, and by a one-pot synthesis using Me2-cAAC, Cu(II)Cl 2, and KC8 in toluene in a molar ratio of 2:1:2, respectively. Both complexes are highly air and moisture sensitive but can be stored in the solid state for a month at room temperature. DFT calculations showed that in these complexes the copper center has a d10 electronic configuration and the unpaired electron is delocalized over two carbene carbon atoms. This was further confirmed by the EPR spectra, which exhibit multiple hyperfine lines due to the coupling of the unpaired electron with 63,65Cu isotopes, 14N, and 1H nuclei.
UR - http://www.scopus.com/inward/record.url?scp=84899765381&partnerID=8YFLogxK
U2 - 10.1021/ja502521b
DO - 10.1021/ja502521b
M3 - 文章
C2 - 24731250
AN - SCOPUS:84899765381
SN - 0002-7863
VL - 136
SP - 6235
EP - 6238
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 17
ER -