Spahr Dominik, König Jannes, Bayarjargal Lkhamsuren, Luchitskaia Rita, Milman Victor, Perlov Alexander, Liermann Hanns-Peter, Winkler Björn
Institute of Geosciences, Goethe University Frankfurt, Altenhöferallee 1, Frankfurt 60438, Germany.
Dassault Systèmes BIOVIA, 334 Cambridge Science Park, Cambridge CB4 0WN, United Kingdom.
Inorg Chem. 2022 Jul 4;61(26):9855-9859. doi: 10.1021/acs.inorgchem.2c01507. Epub 2022 Jun 22.
We have synthesized Pb[CO], an inorganic pyrocarbonate salt, in a laser-heated diamond anvil cell (LH-DAC) at 30 GPa by heating a Pb[CO] + CO mixture to ≈2000(200) K. Inorganic pyrocarbonates contain isolated [CO] groups without functional groups attached. The [CO] groups consist of two oxygen-sharing [CO] groups. Pb[CO] was characterized by synchrotron-based single-crystal structure refinement, Raman spectroscopy, and density functional theory calculations. Pb[CO] is isostructural to Sr[CO] and crystallizes in the monoclinic space group 2/ with = 4. The synthesis of Pb[CO] demonstrates that, just like in other carbonates, cation substitution is possible and that therefore inorganic pyrocarbonates are a novel family of carbonates, in addition to the established sp and sp carbonates.
我们在激光加热金刚石砧室（LH-DAC）中，通过将Pb[CO] + CO混合物加热至约2000(200) K，在30 GPa压力下合成了无机焦碳酸盐盐Pb[CO]。无机焦碳酸盐含有孤立的[CO]基团，没有连接官能团。[CO]基团由两个共享氧的[CO]基团组成。通过基于同步加速器的单晶结构精修、拉曼光谱和密度泛函理论计算对Pb[CO]进行了表征。Pb[CO]与Sr[CO]同构，结晶于单斜空间群2/，a = 4。Pb[CO]的合成表明，与其他碳酸盐一样，阳离子取代是可能的，因此无机焦碳酸盐是除了已有的sp和sp碳酸盐之外的一类新型碳酸盐。
