Acta Crystallographica Section C

Crystal Structure Communications

Volume 62, Part 3 (March 2006)

metal-organic compounds

 

New palladium complexes with phosphino- and phosphinitopyridine ligands

M. Agostinho, A. Banu, P. Braunstein, R. Welter and X. Morise

Abstract: Three new palladium complexes containing a difunctional P,N-chelate, namely tris(chloro{[1-methyl-1-(6-methyl-2-pyridyl)ethoxy]diphenylphospine-²N,P}methylpalladium(II)chloroform solvate, 3[Pd(CH₃)Cl(C₂₁H₂₂NOP)]·CHCl₃, (III), dichloro[2-(2,6-dimethylphenyl)-6-(diphenylphosphinomethyl)pyridine-²N,P]palladium(II), [PdCl₂(C₂₆H₂₄NP)], (IV), and chloro[2-(2,6-dimethylphenyl)-6-(diphenylphosphinomethyl)pyridine-²N,P]methylpalladium(II), [Pd(CH₃)Cl(C₂₆H₂₄NP)], (V), are reported. Geometric data and the conformations of the ligands around the metal centers, as well as slight distortions of the Pd coordination environments from idealized square-planar geometry, are discussed and compared with the situations in related compounds. Non-conventional hydrogen-bond interactions (C-HCl) have been found in all three complexes. Compound (III) is the first six-membered chloro-methyl-phosphinite P,N-type Pd^II complex to be structurally characterized.

Formula: 3[Pd(CH₃)Cl(C₂₁H₂₂NOP)]·CHCl₃, [PdCl₂(C₂₆H₂₄NP)] and [Pd(CH₃)Cl(C₂₆H₂₄NP)]

	Structure factor file (CIF format) (992.2 kbytes) [ doi:10.1107/S0108270106001296/gg1299IIIsup2.hkl ] Contains datablock III
	Structure factor file (CIF format) (273.5 kbytes) [ doi:10.1107/S0108270106001296/gg1299IVsup3.hkl ] Contains datablock IV
	Structure factor file (CIF format) (334.6 kbytes) [ doi:10.1107/S0108270106001296/gg1299Vsup4.hkl ] Contains datablock V

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