C-H-N-O, Phase transitions, Tetrahedron 4-vertex

• C-H-N-O-S
• C-Cl-H-N-O-S
• C-H-N-O-P
• C-H-K-N-O
• temperature for congruent melting
• fusion
• structural transitions
• temperature for structural transition
• decomposition temperature
• pnictogen
• organic
• chalcogen
• hydrate
• monoclinic
• triclinic
• orthorhombic
• tetragonal
• cubic