Preparation and structures of copper(II) and zinc(II) complexes with 5-ferrocenylpyrimidine: Structural variation derived from flexible coordination ability of the ligand and metal ions

5-Ferrocenylpyrimidine (FcPM) reacted with copper(II) carboxylates and zinc(II) salts to produce coordination polymers [Cu2(C6H5COO)4(FcPM)]n and [Cu2(C5H11COO)4(FcPM)]n · n CH3CN, and three discrete complexes with various M:L stoichiometries, [Cu2(CH3COO)4(FcPM)2], [Zn(NO3)2(FcPM)3], and [Zn(SCN)2(FcPM)2] · 0.5H2O.