Two iron(III) mononuclear complexes [Fe(LH 2 )(H 2 O) 2 ](ClO 4 ) 3 ·3H 2 O (1) and [Fe(LH 2 )(H 2 O)Cl](ClO 4 ) 2 ·2H 2 O (2) have been prepared using [Pb(LH 2 )](ClO 4 ) 2 and Fe(ClO 4 ) 3 ·6H 2 O and FeCl 3 ·6H 2 O for 1 and 2, respectively. LH 2 refers to the macrocyclic Schiff base ligand derived from the condensation of 1,3-diaminopropane and 4-methyl-2,6-diformyl phenol. Complex 1 crystallizes in the space group Orthorhombic Pnma. Complex 1 shows extensive intra- and intermolecular hydrogen bonding involving the iron coordinated water molecules, perchlorate oxygens and the water of crystallization. Seven symmetry-related intermolecular O–H⋯O bonds in 1 form a remarkable two dimensional network of water channels. Complex 2 crystallized in Monoclinic P2 1 /c space group, with two [Fe(LH 2 )(H 2 O)Cl](ClO 4 ) 2 units forming a dimeric structure in the unit cell. Iron coordinated chloride, water of crystallization and perchlorate oxygen atoms display a strong network of hydrogen bonds responsible for holding the two mononuclear units together. Electrochemical experiments revealed a facile reduction of 1 in 10:1 acetonitrile–water with E 1/2 =140mV while addition of 8-fold excess of tetramethylammonium chloride afforded [Fe(LH 2 )Cl 2 ] + which got reduced at E 1/2 =−80mV.