Stabilization Of The CN<sub>3</sub> <sup>5-</sup> Anion In Recoverable High-pressure Ln<sub>3</sub> O<sub>2</sub> (CN<sub>3</sub> ) (Ln=La, Eu, Gd, Tb, Ho, Yb) Oxoguanidinates.
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ABSTRACT: A series of isostructural Ln3 O2 (CN3 ) (Ln=La, Eu, Gd, Tb, Ho, Yb) oxoguanidinates was synthesized under high-pressure (25-54 GPa) high-temperature (2000-3000 K) conditions in laser-heated diamond anvil cells. The crystal structure of this novel class of compounds was determined via synchrotron single-crystal X-ray diffraction (SCXRD) as well as corroborated by X-ray absorption near edge structure (XANES) measurements and density functional theory (DFT) calculations. The Ln3 O2 (CN3 ) solids are composed of the hitherto unknown CN3 5- guanidinate anion-deprotonated guanidine. Changes in unit cell volumes and compressibility of Ln3 O2 (CN3 ) (Ln=La, Eu, Gd, Tb, Ho, Yb) c
SUBMITTER: Aslandukov A
PROVIDER: S-EPMC11497228 | biostudies-literature | 2023 Nov
REPOSITORIES: biostudies-literature
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