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Chirality and Order in Binary Molecular Crystals of Inert Cobalt(III) Complexes

✍ Scribed by Ulli Englert; Axel Häring; Chunhua Hu; Irmgard Kalf

Publisher
John Wiley and Sons
Year
2002
Tongue
German
Weight
467 KB
Volume
628
Category
Article
ISSN
0372-7874

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✦ Synopsis

Starting from the enantiomerically pure and racemic chiral Lewis bases 1-phenylethylamine and 1-(1-naphthyl)ethylamine inert cobalt(III) complexes of the general composition Co(Hdmg) 2 (lig)X (Hdmg ϭ dimethylglyoximate; lig ϭ Lewis base; X ϭ CN, NCO, NO 2 ) were synthesized and characterized by single crystal X-ray diffraction. The enantiopure complexes were used as building blocks for the synthesis of binary crystals. Solid solutions resulted from cocrystallizing isomorphous compounds of equal chirality whereas complexes of opposite chirality formed well-ordered heterochiral solids with efficient packing. Two binary crystals of

Chiralität und Ordnung in binären Molekülkristallen inerter Cobalt(III) Komplexe

Inhaltsübersicht. Ausgehend von den enantiomerenreinen und racemischen chiralen Lewisbasen 1-Phenylethylamin and 1-(1-Naphthyl)ethylamin wurden inerte Cobalt(III)-Komplexe der allgemeinen Zusammensetzung Co(Hdmg) 2 (lig)X (Hdmg ϭ Dimethylglyoximat; lig ϭ Lewisbase; X ϭ CN, NCO, NO 2 ) synthetisiert und anhand von Einkristall-Strukturanalysen charakterisiert. Die enantiomerenreinen Komplexe wurden als Bausteine für die Herstellung binärer Kristalle eingesetzt. Isomorphe Verbindungen gleicher Händigkeit bilden feste Lösungen, wohingegen Komplexe ent-

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