Tetrahedrally Coordinated sp3‑Hybridized Carbon in Sr2CO4 Orthocarbonate at Ambient Conditions

We have synthesized the orthocarbonate Sr2CO4, in which carbon is tetrahedrally coordinated by four oxygen atoms, at moderately high pressures [20(1) GPa] and high temperatures (≈3500 K) in a diamond anvil cell by reacting a SrCO3 single crystal with SrO powder. We show by synchrotron powder X-ray d...

Full description

Saved in:
Bibliographic Details
Published inInorganic chemistry Vol. 60; no. 8; pp. 5419 - 5422
Main Authors Spahr, Dominik, Binck, Jannes, Bayarjargal, Lkhamsuren, Luchitskaia, Rita, Morgenroth, Wolfgang, Comboni, Davide, Milman, Victor, Winkler, Björn
Format Journal Article
LanguageEnglish
Published American Chemical Society 19.04.2021
Online AccessGet full text

Cover

More Information
Summary:We have synthesized the orthocarbonate Sr2CO4, in which carbon is tetrahedrally coordinated by four oxygen atoms, at moderately high pressures [20(1) GPa] and high temperatures (≈3500 K) in a diamond anvil cell by reacting a SrCO3 single crystal with SrO powder. We show by synchrotron powder X-ray diffraction, Raman spectroscopy, and density functional thoery calculations that this phase, and hence sp3-hybridized carbon in a CO4 4– group, can be recovered at ambient conditions. The C–O bond distances are all of similar lengths [≈1.41(1) Å], and the O–C–O angles deviate from the ideal tetrahedral angle by a few degrees only.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.1c00159