in solid Kinetics; byproducts: C5H5N; solid Nn complex was heated;

in methanol soln. of Mn(II) chloride in methanol added to soln. of pyridine in methanol in 1:2 mol. ratio with continuous stirring for 30 min; react. mixt. left overnight at room temp.; ppt. isolated by filtration; washed in CH3OH; dried in vacuo;