Cell and atoms, Enthalpy or energy, Tetrahedron 4-vertex

• C-H-N-O
• O-Si
• Al-H-Na-O-Si
• Al-Ca-H-O-Si
• H-N-O-P
• enthalpy of formation
• chalcogen
• transitional
• non-disordered
• disordered
• monoclinic
• orthorhombic
• cubic
• tetragonal
• triclinic