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Churakov
C-Hg-K-N-S
Ca-H-O-Si
C-Cs-Hg-N-S
Cs-H-O-Sn
C-Hg-N-Se
structural properties
optical properties
phonons
resonance spectra
nuclear magnetic resonance spectra
chalcogen
quaternary
alkali
transitional
monoclinic
triclinic
orthorhombic
trigonal
hexagonal