A Meoh Solution of Salicylaldehyde and O–Hydroxyphenylurea In 11 Molar Ratio Reacts and Forms the Schiff Base, Lh3 (1). a Meoh Solution of the Latter Reacts With Zn(Ii), Co(Ii), Ni(Ii), Fe(Iii) and Zr(Oh)2(Iv) Ions In 11 Molar Ratio and Forms the Corresponding Coordination Compounds, [Zn(Lh)(Meoh)] (2), [M(Lh)(Meoh)2]2 (3, M = Co, Ni), [Fecl(Lh)(Meoh)]2 (4) and [Zr(Oh)2(Lh)(Meoh)2] (5). the Coordination Compounds Have Been Characterized on the Basis of Elemental Analyses, Molecular Weight, Molar Conductance, Spectral (Ir, Reflectance, Nmr) Studies, Thermo-Gravimetric Analyses and Magnetic Susceptibility Measurements. 1 Acts As a Dibasic Tridentate Ono Donor Ligand In 2-5. the Coordination Compounds, 3 and 4 Are Paramagnetic, While 2 and 5 Are Diamagnetic. a Tetrahedral Geometry to 2, an Octahedral Geometry to 3 and 4 and a Pentagonal-Bipyramidal Geometry to 5 Are Assigned. the Energy Optimized Structures, 6 and 7 For 1 and 2 Respectively Are Proposed Using the Semiempirical Zindo1 Quantum Mechanical Calculations.