Fusion, H-N-O-Se, Se-x polyhedra

• C-H-N-O-Se-U
• Cu-H-N-O-Se
• H-N-O-S-Se
• Cd-H-N-O-Se
• temperature for congruent melting
• chalcogen
• pnictogen
• non-disordered
• hydrate
• monoclinic
• orthorhombic
• triclinic
• hexagonal
• trigonal