in ethanol; water reflux 2 h; filtered, washed with hexane/ethanol, dried in vac. for 12 h;

in ethanol (Ar); salicylaldehyde added to a soln. of amine; this soln. added to a soln. of Co(CH3COO)2*4H2O; refluxed for 2 h with stirring; cooled to room temp.; filtered; washed with diethyl ether; dried in vacuo; elem. anal.;

in methanol under N2 soln. was refluxed for 30 min; soln. was concd. in vac., allowed to stand at room temp., prisms were collected by suction, washed with methanol, dried in vac. dessicator; elem. anal.;

2: methanol View Scheme