Synthesis and single-crystal X-ray diffraction characterization of ternary La-C-N and Tb-C-N solids under pressures up to 150 GPa

ESRF Portal2028-01-01 更新2026-04-23 收录

材料合成

三元碳氮化物晶体学

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https://doi.esrf.fr/10.15151/ESRF-ES-2009543263 数据链接链接失效反馈

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Ternary compounds containing carbon and nitrogen such as cyanides [CN]- and carbodiimides [CN2]2-have been known for a long time and have plenty of applications. Recently, at mild pressures (25-54 GPa) we discovered the recoverable to ambient conditions [CN3]5- anion in the series of isostructural Ln3O2(CN3) (Ln=La, Eu, Gd, Tb, Ho, Yb) oxoguanidinates. The next member of this C-N anion series—ortho-nitridocarbonate [CN4]8- anion—is hitherto unknown, although its stabilization is predicted in theoretical studies and expected at higher pressures. Here, we propose a single-crystal X-ray diffraction study of La-C-N and Tb-C-N systems up to 150 GPa at ID11. The aims of the proposed experiments are a synthesis of new La-C-N and Tb-C-N solids at megabar pressure regime, characterization of their crystal chemistry and behavior upon decompression, tests of theoretical predictions, search for regularities in ternary carbonitride chemistry, and see the effect of lanthanide ion.

提供机构：

J W Goethe-Universitaet, Inst f Anorganische und Analytische Chemie, Marie-Curie-Strasse 11, 60439 Frankfurt, Germany; Institute of Inorg. and Analy. Chemistry, Department of Chemistry, Max-von-Laue-Straße 9, 60439, Frankfurt am main, DE; Universitaet Bayreuth, Bayerisches Geoinstitut, Universitaetsstrasse 30, 95440 Bayreuth, Germany; Universitaet Bayreuth, Laboratory of Crystallography, Universitaetsstr. 30, 95440, Bayreuth, DE; Universitaet Bayreuth, Bayerisches Geoinstitut, Universitaetsstrasse 30, 95440 , Bayreuth, DE

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2028-01-01