Six mononuclear complexes [M( L 1) 2(H 2O) 4] (M = Co(II), 1a and M = Mn(II), 1b), [Cu( L 1) 2(H 2O) 2] ( 1c), [Cu( L 1) 2(H 2O)(Py) 2] ( 1d), [Cu( L 3)(H 2O)Cl] · H 2O ( 3a) and [Co(Sal)(H 2O)(Py) 3] · 2ClO 4 · H 2O ( 3b) of phenoxyacetic acid derivatives and Schiff base were determined by single crystal X-ray diffraction. The Co(II) ( 1a) and Mn(II) ( 1b) complexes are isomorphous. X-ray crystal structural analyses reveal that these coordination complexes form polymeric structure via formation of different types of hydrogen bonding and π-stacking interactions in solid. Thermal analysis along with the powder X-ray diffraction data of these complexes shows the importance of the coordinated and/or crystal water molecules in stabilizing the MOF structure. Complexes 1a, 1c, 3a show marginal catalytic activity in the oxidation of olefins to epoxides in the presence of i-butyraldehyde and molecular oxygen.