Pre-lab 8.2.a Optical Isomers of Metal

Pre-lab 8.2.b Optical Isomer Resolution Using Tartrate Salts5,6 

Two primary resolving agents for metal complexes are D-tartrate and antimonyl D-tartrate ions. Optical resolution is achieved using either chromatography (e.g., ion exchange with D-tartrate salt as the eluent) or by fractional precipitation. We will use this latter technique for resolutions. When a racemic mixture of a metal complex is combined with an optically 

The chelating ligands about the central cobalt(H[) center are c -[Co(NH3)4(OH)2]+ ions. 

All manipulations must be carried out in the dark (keep aluminum foil on reaction flasks). 

Dissolve 2.27 g (7 mmol) potassium antimonyl-D-tartrate hydrate [K(SbO) C4H4O6 xH20] in 15 ml dd H20 in a 50 ml beaker equipped with a stir bar. 

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