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@ARTICLE{Spahr:599925,
      author       = {Spahr, Dominik and Bayarjargal, Lkhamsuren and Haussühl,
                      Eiken and Luchitskaia, Rita and Friedrich, Alexandra and
                      Milman, Victor and Fedotenko, Timofey and Winkler, Björn},
      title        = {{T}wisted [{C}$_2${O}$_5$]$^{2−}$-groups in
                      {B}a[{C}$_2${O}$_5$] pyrocarbonate},
      journal      = {Chemical communications},
      volume       = {59},
      number       = {80},
      issn         = {0022-4936},
      address      = {Cambridge},
      publisher    = {Soc.},
      reportid     = {PUBDB-2023-07614},
      pages        = {11951 - 11954},
      year         = {2023},
      note         = {Waiting for fulltext},
      abstract     = {The inorganic pyrocarbonate salt Ba[C$_2$O$_5$] contains
                      twisted pyrocarbonate anions ([C$_2$O$_5$]$^{2−}$), an
                      atomic arrangement previously not observed in other
                      pyrocarbonates. This unexpected additional structural degree
                      of freedom points towards an enlarged chemical variability
                      in this novel group of compounds. Ba[C$_2$O$_5$] was
                      synthesized in a laser-heated diamond anvil cell at 30(2)
                      GPa by heating a mixture of Ba[CO$_3$] + CO$_2$ to ≈
                      1500(200) K. Its crystal structure was solved from single
                      crystal synchrotron X-ray diffraction data and confirmed by
                      density functional theory-based calculations. The two planar
                      [CO$_3$]$^{2−}$-groups of the [C$_2$O$_5$]$^{2−}$-anion
                      are strongly twisted around the bridging oxygen atom.
                      Ba[C$_2$O$_5$] has been observed in the pressure range of
                      5–30 GPa, where its symmetry is $P6/m$ with $Z=$12.},
      cin          = {DOOR ; HAS-User},
      ddc          = {540},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {631 - Matter – Dynamics, Mechanisms and Control
                      (POF4-631) / 6G3 - PETRA III (DESY) (POF4-6G3)},
      pid          = {G:(DE-HGF)POF4-631 / G:(DE-HGF)POF4-6G3},
      experiment   = {EXP:(DE-H253)P-P02.2-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {37747265},
      UT           = {WOS:001072818800001},
      doi          = {10.1039/D3CC03324D},
      url          = {https://bib-pubdb1.desy.de/record/599925},
}