C-H-N-O, Coplanar triangle 3-vertex, Electronic energy gap

• C-Cu-H-N-O
• C-H-K-N-O
• C-Cl-H-N-O
• C-H-N-Na-O
• values of electronic energy gap
• chalcogen
• organic
• pnictogen
• non-disordered
• monoclinic
• triclinic
• orthorhombic
• trigonal
• tetragonal