Steric and electronic parameters of a bulky yet flexible N-heterocyclic carbene: 1,3-bis(2,6-bis(1-ethylpropyl)phenyl)imidazol-2-ylidene (IPent)
Slawin, Alexandra M. Z.
Nolan, Steven P.
KAUST DepartmentKAUST Catalysis Center (KCC)
Physical Sciences and Engineering (PSE) Division
Chemical Science Program
Permanent link to this recordhttp://hdl.handle.net/10754/562808
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AbstractThe free N-heterocyclic carbene IPent (1; IPent = 1,3-bis(2,6-bis(1- ethylpropyl)phenyl)imidazol-2-ylidene) was prepared from the corresponding imidazolium chloride salt (2). The steric and electronic parameters of 1 were determined by synthesis of the gold(I) chloride complex [Au(IPent)Cl] (3) and the nickel-carbonyl complex [Ni(IPent)(CO)3] (4), respectively. 3 and 4 were fully characterized by NMR spectroscopy, elemental analysis, and X-ray diffraction studies on single crystals. © 2013 American Chemical Society.
SponsorsThe ERC (Advanced Investigator Award-FUNCAT), Umicore, Syngenta and the EPSRC are thanked for support of this work. We thank the EPSRC National Mass Spectrometry Service Center in Swansea for mass analyses. S.P.N. is a Royal Society Wolfson Research Merit Award holder.
PublisherAmerican Chemical Society (ACS)