Inorganic Chemistry, Vol.46, No.15, 5838-5840, 2007
New coordination motifs of melamine directed by N-H center dot center dot center dot X (X = cl or br) hydrogen bonds
Unusual mu(2)- and mu(3)-coordination modes of melamine are found in two organic-inorganic hybrid copper halides, [Cu2Br2(MA)](n) (1) and [Cu3Cl3(MA)](n) (2) (MA = melamine), in which the MA ligand affords two N-heterocycle N atoms to link (Cu2Br2)(infinity) stairs and serves as a novel mu(3) bridge to give a 3D framework, respectively.