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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)
Journal article   Peer reviewed

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)

Alba Collado, Janos Balogh, Sebastien Meiries, Alexandra M. Z. Slawin, Laura Falivene, Luigi Cavallo and Steven P. Nolan
Organometallics, Vol.32(11), pp.3249-3252
10/06/2013
DOI: https://doi.org/10.1021/om400168b

Abstract

Chemistry Chemistry, Inorganic & Nuclear Chemistry, Organic Physical Sciences Science & Technology
The 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.

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