Please use this identifier to cite or link to this item: https://doi.org/10.1021/om060607+
Title: Stabilization of nickel(O) by hemilabile P,N-ferrocene ligands and their ethylene oligomerization activities
Authors: Weng, Z. 
Teo, S.
Hor, T.S.A. 
Issue Date: 25-Sep-2006
Source: Weng, Z., Teo, S., Hor, T.S.A. (2006-09-25). Stabilization of nickel(O) by hemilabile P,N-ferrocene ligands and their ethylene oligomerization activities. Organometallics 25 (20) : 4878-4882. ScholarBank@NUS Repository. https://doi.org/10.1021/om060607+
Abstract: Ligand displacement reactions of Ni(COD)2 with a ferrocenediyl iminophosphine, viz., [C5H4CH= N(C6F 5)]Fe[η-C5H4PPh2] (1) or [C 5H4CH=NC(H)(CH3)(C4H 5)]Fe[η-C5H4PCy2] (2), in the presence of t-BuNC, CO, or PhC≡CPh give the appropriate mixed-ligand Ni(0) complexes, viz., [C5H4CH= N(C6F 5)]Fe[η-C5H4PPh2]Ni 0(CNt-Bu)3 (3), [C5H4CH=N(C 6F5)]Fe[η-C5H4PPh 2]Ni0(CO)2 (4a), {[C5H 4CH=N(C6F5)]Fe[η-C5H 4PPh2]}2Ni0(CO)2 (4b), and [C5H4CH=NC(H)(CH3)(C6H 5)]Fe[η-C5H4PCy2]Ni 0(η2 PhC≡CPh) (5). The X-ray crystal and molecular structures of 4b and 5 are described. The hemilability of iminophosphine is illustrated by the formation of both P,N-chelating and imine-pendant functions. All the complexes examined are catalytically active toward ethylene oligomerization at 30°C, with 5 showing the best activity, followed by 3 and 4. © 2006 American Chemical Society.
Source Title: Organometallics
URI: http://scholarbank.nus.edu.sg/handle/10635/94865
ISSN: 02767333
DOI: 10.1021/om060607+
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