Stabilization Of The CN 3 5- Anion In Recoverable High-pressure Ln 3 O 2 (CN 3 ) (Ln=La, Eu, Gd, Tb, Ho, Yb) Oxoguanidinates.

Autor: Aslandukov A; Bayerisches Geoinstitut, University of Bayreuth, Universitätstrasse 30, 95440, Bayreuth, Germany.; Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, Universitätstrasse 30, 95440, Bayreuth, Germany., Jurzick PL; Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, 50939, Cologne, Germany., Bykov M; Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, 50939, Cologne, Germany., Aslandukova A; Bayerisches Geoinstitut, University of Bayreuth, Universitätstrasse 30, 95440, Bayreuth, Germany., Chanyshev A; Bayerisches Geoinstitut, University of Bayreuth, Universitätstrasse 30, 95440, Bayreuth, Germany., Laniel D; Centre for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, EH9 3FD, Edinburgh, United Kingdom., Yin Y; Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, Universitätstrasse 30, 95440, Bayreuth, Germany., Akbar FI; Bayerisches Geoinstitut, University of Bayreuth, Universitätstrasse 30, 95440, Bayreuth, Germany., Khandarkhaeva S; Bayerisches Geoinstitut, University of Bayreuth, Universitätstrasse 30, 95440, Bayreuth, Germany., Fedotenko T; Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607, Hamburg, Germany., Glazyrin K; Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607, Hamburg, Germany., Chariton S; Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois, 60637, USA., Prakapenka V; Center for Advanced Radiation Sources, University of Chicago, Chicago, Illinois, 60637, USA., Wilhelm F; European Synchrotron Radiation Facility BP 220, 38043, Grenoble Cedex, France., Rogalev A; European Synchrotron Radiation Facility BP 220, 38043, Grenoble Cedex, France., Comboni D; European Synchrotron Radiation Facility BP 220, 38043, Grenoble Cedex, France., Hanfland M; European Synchrotron Radiation Facility BP 220, 38043, Grenoble Cedex, France., Dubrovinskaia N; Material Physics and Technology at Extreme Conditions, Laboratory of Crystallography, University of Bayreuth, Universitätstrasse 30, 95440, Bayreuth, Germany.; Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83, Linköping, Sweden., Dubrovinsky L; Bayerisches Geoinstitut, University of Bayreuth, Universitätstrasse 30, 95440, Bayreuth, Germany.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2023 Nov 20; Vol. 62 (47), pp. e202311516. Date of Electronic Publication: 2023 Oct 16.
DOI: 10.1002/anie.202311516
Abstrakt: A series of isostructural Ln 3 O 2 (CN 3 ) (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 Ln 3 O 2 (CN 3 ) solids are composed of the hitherto unknown CN 3 5- guanidinate anion-deprotonated guanidine. Changes in unit cell volumes and compressibility of Ln 3 O 2 (CN 3 ) (Ln=La, Eu, Gd, Tb, Ho, Yb) compounds are found to be dictated by the lanthanide contraction phenomenon. Decompression experiments show that Ln 3 O 2 (CN 3 ) compounds are recoverable to ambient conditions. The stabilization of the CN 3 5- guanidinate anion at ambient conditions provides new opportunities in inorganic and organic synthetic chemistry.
(© 2023 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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