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Cobalt complexes derived from chiral quasi-racemic ligands as building blocks for binary crystals

2002; Elsevier BV; Volume: 5; Issue: 10 Linguagem: Inglês

10.1016/s1387-7003(02)00584-1

1879-0259

Sandra Reemers, Ulli Englert,

Metal complexes synthesis and properties

Abstract The crystal structures of three new coordination compounds have been determined by X-ray diffraction: reaction of the enantiomerically pure ligands R-1-(4′-methoxyphenyl)ethylamine and S-1-(4′-chlorophenyl)ethylamine with [Co(Hdmg)2(NO2)(H2O)] (Hdmg = dimethylglyoximate) results in a pair of quasi-racemic complexes. Despite their different molecular conformations in the solid state these compounds can be cocrystallized to give a well-ordered binary solid of superior packing efficiency in which the components are arranged in a pseudo-inversion symmetric fashion.