Hilfrich

• C-Hg-N-O-Rb
• C-Hg-K-N-O
• C-Hg-K-N
• C-Cs-Hg-N-O
• C-H-Hg-N-Na-O
• structural properties
• alkali
• pnictogen
• transitional
• chalcogen
• quinary
• triclinic
• orthorhombic