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Sr[C2O5] is an Inorganic Pyrocarbonate Salt with [C2O5]2– Complex Anions
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2022-02-08 , DOI: 10.1021/jacs.2c00351
Dominik Spahr 1 , Jannes König 1 , Lkhamsuren Bayarjargal 1 , Victor Milman 2 , Alexander Perlov 2 , Hanns-Peter Liermann 3 , Björn Winkler 1
Affiliation  

The synthesis of a novel type of carbonate, namely of the inorganic pyrocarbonate salt Sr[C2O5], which contains isolated [C2O5]2–-groups, significantly extends the crystal chemistry of inorganic carbonates beyond the established sp2- and sp3-carbonates. We synthesized Sr[C2O5] in a laser-heated diamond anvil cell by reacting Sr[CO3] with CO2. By single crystal synchrotron diffraction, Raman spectroscopy, and density functional theory (DFT) calculations, we show that it is a pyrocarbonate salt. Sr[C2O5] is the first member of a novel family of inorganic carbonates. We predict, based on DFT calculations, that further inorganic pyrocarbonates can be obtained and that these will be relevant to geoscience and may provide a better understanding of reactions converting CO2 into useful inorganic compounds.

中文翻译:

Sr[C2O5] 是一种具有 [C2O5]2– 复合阴离子的无机焦碳酸盐

一种新型碳酸盐的合成,即无机焦碳酸盐 Sr[C 2 O 5 ],其中包含孤立的 [C 2 O 5 ] 2- -基团,显着扩展了无机碳酸盐的晶体化学,超出了已建立的sp 2 -和sp 3 -碳酸盐。我们通过使 Sr[CO 3 ] 与 CO 2反应,在激光加热金刚石砧室中合成了 Sr[C 2 O 5 ] 。通过单晶同步加速器衍射、拉曼光谱和密度泛函理论 (DFT) 计算,我们表明它是一种焦碳酸盐。锶[C 2 O5 ]是无机碳酸盐新家族的第一个成员。我们预测,基于 DFT 计算,可以获得更多的无机焦碳酸盐,这些将与地球科学相关,并且可以更好地理解将 CO 2转化为有用的无机化合物的反应。
更新日期:2022-02-08
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