Synthesis of LaCN3, TbCN3, CeCN5, and TbCN5 Polycarbonitrides at Megabar Pressures
Andrey Aslandukov,
Akun Liang,
Amanda Ehn
et al.
Abstract:Inorganic ternary metal−C−N compounds with covalently bonded C−N anions encompass important classes of solids such as cyanides and carbodiimides, well known at ambient conditions and composed of [CN] − and [CN 2 ] 2− anions, as well as the high-pressure formed guanidinates featuring [CN 3 ] 5− anion. At still higher pressures, carbon is expected to be 4-fold coordinated by nitrogen atoms, but hitherto, such CN 4 -built anions are missing. In this study, four polycarbonitride compounds (LaCN 3 , TbCN 3 , CeCN 5… Show more
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