Robust packing in cyclopalladated primary amines: isomorphous crystal structures of four complexes with varying substitution patterns

Beatrice Calmuschi-Cula; Irmgard Kalf; Claudia Timofte; Ulli Englert

doi:10.1107/S0108270108043631

Robust packing in cyclopalladated primary amines: isomorphous crystal structures of four complexes with varying substitution patterns

Acta Crystallogr C. 2009 Feb;65(Pt 2):m48-51. doi: 10.1107/S0108270108043631. Epub 2009 Jan 10.

Authors

Beatrice Calmuschi-Cula¹, Irmgard Kalf, Claudia Timofte, Ulli Englert

Affiliation

¹ Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.

PMID: 19190368
DOI: 10.1107/S0108270108043631

Abstract

The crystal structures of (SP-4-4)-[rac-2-(1-aminoethyl)phenyl-kappa(2)C(1),N]chlorido(pyridine-kappaN)palladium(II), [Pd(C(8)H(10)N)Cl(C(5)H(5)N)], (I), (SP-4-4)-[rac-2-(1-aminoethyl)phenyl-kappa(2)C(1),N]bromido(pyridine-kappaN)palladium(II), [PdBr(C(8)H(10)N)(C(5)H(5)N)], (II), (SP-4-4)-[rac-2-(1-aminoethyl)-5-bromophenyl-kappa(2)C(1),N]bromido(4-methylpyridine-kappaN)palladium(II), [PdBr(C(8)H(9)BrN)(C(6)H(7)N)], (III), and (SP-4-4)-[rac-2-(1-aminoethyl)-5-bromophenyl-kappa(2)C(1),N]iodido(4-methylpyridine-kappaN)palladium(II), [Pd(C(8)H(9)BrN)I(C(6)H(7)N)], (IV), are reported. The latter is the first iodide complex in this class of compounds. All four complexes crystallize in the same space group, viz. I4(1)/a, with very similar lattice parameters a and more flexible lattice parameters c. Their packing corresponds to that of their enantiomerically pure congeners, which crystallize in the t2 subgroup I4(1).