Synthesis, characterization and electrochemistry of [Pd(PP)MeCl] compounds with 1,1 ''-bis(phosphino)ferrocene ligands

Three new [Pd(kappa(2)-PP)MeCl] (PP = 1,1'-bis(dicyclohexylphosphino)ferrocene (dcpf), 1-diphenylphosphino-1'-ditert-butylphosphinoferrocene (dppdtbpf) or 1,1'-bis(5-methyl-2-furanylphosphino)ferrocene (dfurpf)) compounds were prepared and characterized. The X-ray crystal structure of [Pd(dppdtbpf) MeCl] was obtained which allowed for unambiguous determination of the cis/trans- relationship between the methyl and chloride ligands with respect to the different phosphine groups. The oxidative electrochemistry of the three new compounds as well as that of the reported [Pd(kappa(2)-PP)MeCl] (PP = 1,1'-bis (diphenylphosphino)ferrocene (dppf), or 1,1'-bis(diiso-propylphosphino)ferrocene (dippf)) and [Pd(kappa(3)- dtbpf)Me]Cl (dtbpf = 1,1'- bis(ditert-butylphosphino)ferrocene) was examined. The compounds with the kappa(2)-bis(phosphino)ferrocene ligands react with sodium tetrakis(3,5-bis(trifluoromethyl)phenylborate) to lose a chloride ligand and the catalytic activity of these compounds was investigated for the polymerization of phenylacetylene. (C) 2021 Elsevier Ltd. All rights reserved.

Title	Synthesis, characterization and electrochemistry of [Pd(PP)MeCl] compounds with 1,1 ''-bis(phosphino)ferrocene ligands
Creator	Xu, X. Y.
	Nataro, Chip
	Samples, E. M.
	Hendricks, M. E.
	Johnson, A. R.
	Boller, T. R.
Publisher	Polyhedron
Academic Department	Chemistry
Division	Natural Sciences
Organization	Lafayette College
Date Issued	2021
Date Available	2022-12-13
Type	Article
Language	English
Keyword	NMR spectroscopy
	Catalysis
	X-ray crystal structure
	cyclic voltammetry
	Bis(phosphino)ferrocene ligands
Bibliographic Citation	Hendricks, M. E., et al. (2021) "Synthesis, characterization and electrochemistry of [Pd(PP)MeCl] compounds with 1,1 ''-bis(phosphino)ferrocene ligands." Polyhedron 199: 115104.
Standard Identifier	Handle 10385/ks65hd76w
Standard Identifier	DOI 10.1016/j.poly.2021.115104
Permalink	http://hdl.handle.net/10385/ks65hd76w
Rights Statement	In Copyright
Rights Holders	Elsevier, Ltd.