Structure of aquabis-(picolinato)scandium hydroxide dihydrate

The crystal structure of the title complex was established by X-ray diffraction analysis. Each scandium ion is seven-coordinated by two oxygen atoms and two nitrogen atoms from the picolinato ions, one water oxygen atom and two hydroxide ions. The nitrogen atom and one carboxyl oxygen atom of each picolinato ion are coordinated to the same scandium ion to form a five-membered chelating ring. Each hydroxide ion is coordinated to two scandium ions to form hydroxide bridges and a dimeric molecule unit.