Stabilization Of The CN35− Anion In Recoverable High-pressure Ln3O2(CN3) (Ln=La, Eu, Gd, Tb, Ho, Yb) Oxoguanidinates

Funding Agencies|National Science Foundation; DOE Office of Science by Argonne National Laboratory; UKRI Future Leaders Fellowship; Deutsche Forschungsgemeinschaft (DFG) [DE-AC02-06CH11357, MR/V025724/1, 2009 00971]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University; Projekt DEAL; [DU 954-11/1]; [DU 393-9/2]; [DU 393-13/1]; [DU 945/15-1]; [EAR- 1634415]
A series of isostructural Ln(3)O(2)(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 Ln(3)O(2)(CN3) solids are composed of the hitherto unknown CN35- guanidinate anion-deprotonated guanidine. Changes in unit cell volumes and compressibility of Ln(3)O(2)(CN3) (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)(CN3) compounds are recoverable to ambient conditions. The stabilization of the CN35- guanidinate anion at ambient conditions provides new opportunities in inorganic and organic synthetic chemistry.

NATURVETENSKAP Kemi Oorganisk kemi hsv//swe
NATURAL SCIENCES Chemical Sciences Inorganic Chemistry hsv//eng
Diamond Anvil Cell; Guanidinate; High Pressure; Lanthanides; Single-Crystal X-Ray Diffraction

Jurzick, Pascal L.Univ Cologne, Germany (författare)
Bykov, MaximUniv Cologne, Germany (författare)
Aslandukova, AlenaUniv Bayreuth, Germany (författare)
Chanyshev, ArtemUniv Bayreuth, Germany (författare)
Laniel, DominiqueUniv Edinburgh, Scotland; Univ Edinburgh, Scotland (författare)
Yin, YuqingUniv Bayreuth, Germany (författare)
Akbar, Fariia I.Univ Bayreuth, Germany (författare)
Khandarkhaeva, SaianaUniv Bayreuth, Germany (författare)
Fedotenko, TimofeyDeutsch Elektronen Synchrotron DESY, Germany (författare)
Glazyrin, KonstantinDeutsch Elektronen Synchrotron DESY, Germany (författare)
Chariton, StellaUniv Chicago, IL 60637 USA (författare)
Prakapenka, VitaliUniv Chicago, IL 60637 USA (författare)
Wilhelm, FabriceEuropean Synchrotron Radiat Facil, France (författare)
Rogalev, AndreiEuropean Synchrotron Radiat Facil, France (författare)
Comboni, DavideEuropean Synchrotron Radiat Facil, France (författare)
Hanfland, MichaelEuropean Synchrotron Radiat Facil, France (författare)
Doubrovinckaia, NataliaLinköpings universitet,Teoretisk Fysik,Tekniska fakulteten,Univ Bayreuth, Germany(Swepub:liu)natdo06 (författare)
Dubrovinsky, LeonidUniv Bayreuth, Germany (författare)
Univ Bayreuth, GermanyUniv Cologne, Germany (creator_code:org_t)

Ingår i:Angewandte Chemie International Edition: WILEY-V C H VERLAG GMBH62:471433-78511521-3773

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