Comparative study of electronic structure of cubic and hexagonal phases of Re3W as non-centrosymmetric and centrosymmetric low-TC superconductors

► Ab initio calculations for hexagonal and cubic Re3W have been performed. ► Structural properties, stability and electronic structure are studied. ► The correlation between TC and the near-Fermi density of states was found. ► The average electron-phonon coupling constants λ were evaluated.