Extending carbon chemistry at high-pressure by synthesis of CaC₂ and Ca₃C₇ with deprotonated polyacene- and para-poly(indenoindene)-like nanoribbons

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00008360
URN to cite this document: urn:nbn:de:bvb:703-epub-8360-2

Title data

Khandarkhaeva, Saiana ; Fedotenko, Timofey ; Aslandukova, Alena ; Akbar, Fariia Iasmin ; Bykov, Maxim ; Laniel, Dominique ; Aslandukov, Andrii ; Ruschewitz, Uwe ; Tobeck, Christian ; Winkler, Björn ; Chariton, Stella ; Prakapenka, Vitali ; Glazyrin, Konstantin ; Giacobbe, Carlotta ; Bright, Eleanor Lawrence ; Belov, Maxim P. ; Dubrovinskaia, Natalia ; Dubrovinsky, Leonid:
Extending carbon chemistry at high-pressure by synthesis of CaC₂ and Ca₃C₇ with deprotonated polyacene- and para-poly(indenoindene)-like nanoribbons.
In: Nature Communications. Vol. 15 (2024) . - 2855.
ISSN 2041-1723
DOI der Verlagsversion: https://doi.org/10.1038/s41467-024-47138-2

	Format: PDF Name: s41467-024-47138-2.pdf Version: Published Version Available under License Creative Commons BY 4.0: Attribution
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Project information

Project title:	Project's official title Project's id Open Access Publizieren No information
Project financing:	Deutsche Forschungsgemeinschaft

Abstract

Metal carbides are known to contain small carbon units similar to those found in the molecules of methane, acetylene, and allene. However, for numerous binary systems ab initio calculations predict the formation of unusual metal carbides with exotic polycarbon units, [C₆] rings, and graphitic carbon sheets at high pressure (HP). Here we report the synthesis and structural characterization of a HP-CaC₂ polymorph and a Ca₃C₇ compound featuring deprotonated polyacene-like and para-poly(indenoindene)-like nanoribbons, respectively. We also demonstrate that carbides with infinite chains of fused [C₆] rings can exist even at conditions of deep planetary interiors ( ~ 140 GPa and ~3300 K). Hydrolysis of high-pressure carbides may provide a possible abiotic route to polycyclic aromatic hydrocarbons in Universe.

Further data

Item Type:	Article in a journal
DDC Subjects:	500 Science > 530 Physics
Institutions of the University:	Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professor Materials Physics and Technology at Extreme Conditions Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professor Materials Physics and Technology at Extreme Conditions > Professor Materials Physics and Technology at Extreme Conditions - Univ.-Prof. Dr. Natalia Doubrovinckaia Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-8360-2
Date Deposited:	26 Mar 2025 10:37
Last Modified:	26 Mar 2025 10:37
URI:	https://epub.uni-bayreuth.de/id/eprint/8360

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