Chalcogen, Pnictogen, Cjchag

• H-N-O
• As-Co-O
• P-Se
• C-H-N-O
• Br-H-N-Te
• structural properties
• phase diagram
• phase transitions
• chalcogen
• pnictogen
• non-disordered
• transitional
• monoclinic
• orthorhombic
• tetragonal
• cubic
• trigonal