Three novel ferrocenyl complexes [Zn(4-PFA)2(NO3)2](H2O) (1), [Hg2(OAc)4(4-BPFA)2](CH3OH) (2), and [Cd2(OAc)4-(4-BPFA)2] (3) (4-PFA=[(4-pyridylamino)carbonyl]ferrocene, 4-BPFA) 1,1'-bis[(4-pyridylamino)carbonyl]ferrocene) were prepared, and complexes 1 and 2 were structurally characterized by means of X-ray single-crystal diffraction. In complex 1, the zinc(Ⅱ) atom is coordinated at a distorted tetrahedral environment by two nitrogen atoms from two 4-PFA moieties and two oxygen atoms from two nitrate anions; [Zn(4-PFA)2(NO3)2] units are linked by hydrogen bonds N-H…O and O-H…O forming one-dimensional chains. Complex 2 is a tetranuclear macrocycle compound consisting of two 4-BPFA moieties and two Hg atoms; [Hg2(OAc)4(4-BPFA)2] units form 1-D chains by hydrogen bonds N-H…O as complex 1. Some complexes with 1,1'-bisubstituted pyridine-containing ferrocene ligands have been described, but their crystal data are limited. Compound 2 is the first example of a macrocyclic pyridinecontainingferrocenyl complex. The third-order nonlinear optical (NLO) properties of 4-PFA, 4-BPFA, and complexes 1-3 were determined by Z-scan techniques. The results indicate that all the compounds exhibit strong self-focusing effect. The hyperpolarizability ç values are calculated to be in the range 1.51×10-28 to 3.12×10-28 esu. The γ values are nearly twice as large for complexes 1-3 as for their individual ligands, showing that the optical nonlinearity of the complexes is dominated by the ligands.