Details

Autor(en) / Beteiligte

• Spahr, Dominik
• Bayarjargal, Lkhamsuren
• Bykov, Maxim
• Brüning, Lukas
• Reuter, Tim H
• Milman, Victor
• Hanns-Peter Liermann
• Winkler, Björn

Titel

High-pressure synthesis of acentric sodium pyrocarbonate, Na2[C2O5]

Ist Teil von

• Dalton transactions : an international journal of inorganic chemistry, 2023-12, Vol.53 (1), p.40-44

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The inorganic pyrocarbonate salt Na2[C2O5] crystallizes in the acentric, monoclinic space group P21 with Z = 2. It contains monovalent alkali metal cations together with isolated pyrocarbonate anions. The [C2O5]2−-groups consist of two planar [CO3]2−-groups which are slightly tilted with respect to each other around the bridging oxygen atom. Na2[C2O5] was synthesized in a laser-heated diamond anvil cell at 20(2) GPa by heating a mixture of Na2[CO3] + CO2 to ≈800(200) K. Its crystal structure was obtained by single crystal synchrotron X-ray diffraction and confirmed by density functional theory-based calculations in combination with Raman spectroscopy. Second harmonic generation measurements verified the acentric space group symmetry. The crystal structure is characterized by alternating layers of Na+-cations and [C2O5]2−-complex anions.