Discrete and polymeric coordination complexes [Cu2L4(ClO4)4]·2CH2Cl2·CH3OH (1), [Cu2L2(NO3)4(CH3OH)2] (2) and {[Cu2L4(NO3)4]}n (3) were obtained by using bridged pyridine ligand 4-methyl-2,6-bis(pyridinyl-3-ethynyl) aniline (L) and Cu(II) salts in CH2Cl2/MeOH. The structure of...