The structural, electronic as well as bonding nature of TMOs2 (TM=Sc and Y) Laves phase compounds are studied using full potential linearized augmented plane wave (FP-LAPW) method within generalized gradient approximation (GGA). These compounds are crystallize in MgZn2-type hexagonal structure. The total energy are calculated using Birch Murnaghan’s equation of state to find the equilibrium lattice parameter (a0), Bulk modulus (B0) and pressure derivative of bulk modulus (B0) and are in good agreement with experimental results. The electronic properties reveal that ScOs2 and YOs2 are highly metallic. The charge density difference plots represent ionic as well as metallic bonding, with weak covalent character.
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