AM_Carbon_7 Formula: C5 Name: Carbon Unit cell: 4.89 4.89 3.88 90.0 90.0 120.0 , V=80.35 Space group: P6/MMM (191)

Bucknum M J , Castro E A , Journal of Chemical Theory and Computation , 2 (2006) p.775-781, The carbon allotrope hexagonite and its potential, synthesis from cold compression of carbon nanotubes, Locality: hypothetical structure