The anhydrous pyrocarbonate and the first hydrogen pyrocarbonate Li[HCO] have been synthesized in a laser-heated diamond anvil cell at moderate pressures ( GPa). The structures of the two compounds have been obtained from single crystal X-ray diffraction data. Raman spectroscopy and DFT calculations have been employed to further characterize their structure-property relations. The present results significantly enlarge the group of inorganic pyrocarbonates by the discovery of the hydrogenated pyrocarbonate anion Li[HCO]. In the structure of Li[HCO] there is a symmetric O-H-O arrangement at high pressures, which converts to a conventional O-H O hydrogen bond upon pressure release.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11586701 | PMC |
http://dx.doi.org/10.1002/anie.202409822 | DOI Listing |
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