Synthesis and structural studies on new M IIX2L2 dihalocomplexes of 1,3-dimethyllumazine and 1,3,6,7-tetramethyllumazine. Crystal structure of the monodimensionally hydrogen-bonded dichloro-bis (1,3-dimethylpteridine-2,4 (1H,3H)-dione-O 4,N 5) copper (II) dihydrate | Publicación