Figure features the electronic structure results of three new carbon allotropes with the band structure and the site projected density DOS using the all-electrons DFT-based augmented spherical method (ASW) . The energy level along the vertical direction (bands) and along the horizontal direction (DOS) is with respect to the Fermi level (E F ) in metallic-like systems where bands and finite DOS cross E F (Figs. &), and with respect to the top of the valence band E V where a band gap of ~3 eV is observed in Fig. indicating semiconducting behavior. In 'glitter' and 'isoglitter', the site projected DOS illustrate further the origin of the metallic behavior where C1 (tetrahedral) DOS tend to vanish at E F like in diamond, oppositely to trigonal C2 responsible of the finite DOS at E F leading to the metallic behavior. In 'metaglitter' the resemblance with insulating diamond characterized by an almost twice larger band gap, is limited by the presence of carbon square resembling to a certain extend the other two allotropes.