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@ARTICLE{Brning:637223,
      author       = {Brüning, Lukas and Jena, Nityasagar and Jurzick, Pascal L.
                      and Bykova, Elena and Giordano, Nico and Mezouar, Mohamed
                      and Abrikosov, Igor A. and Bykov, Maxim},
      title        = {{H}igh‐{P}ressure {S}ynthesis of {C}rystalline
                      {D}ouble‐{L}ayer {C}arbon {N}itride {N}etworks
                      {S}tabilized in {B}i$_7${C}$_{ 10}${N}$_{18}$({N}$_{3(1‐ x
                      )}${O}$_{3x}$ )},
      journal      = {Angewandte Chemie / International edition},
      volume       = {64},
      number       = {35},
      issn         = {1433-7851},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {PUBDB-2025-03815},
      pages        = {e202506406},
      year         = {2025},
      note         = {CommunicationFigure 4. Phonon dispersion for a) Bi 7 C 10
                      N20 O and b) Bi 7 C 10 N18 O 3 at a synthesis pressure of 34
                      GPa. All calculated vibrational frequencies are
                      real,indicating lattice dynamical stability. Projected
                      electronic density of states (PDOS) for c) Bi 7 C 10 N20 O
                      and d) Bi 7 C 10 N18 O 3 at 34 GPa.AcknowledgementsM.B.
                      acknowledges the support of Deutsche Forschungsge-meinschaft
                      (DFG Emmy-Noether project BY112/2-1).},
      abstract     = {Application of high-pressure conditions in chemical
                      synthesis has proven to access a wide range of novel
                      nitrogen-rich compounds and to overcome the stability of the
                      dinitrogen molecule. In the present work, we report the
                      high-pressurehigh-temperature (HPHT) synthesis of Bi$_7$C$_{
                      10}$N$_{18}$(N$_{3(1‐ x )}$O$_{3x}$ ), which features
                      double-layers of poly-N-(1,3,5-triazin-2-yl)-guanidine [C4
                      N6x- ]n and non-polymerized guanidinate anions CN 35- . The
                      structure model was determined by means ofsynchrotron
                      single-crystal X-ray diffraction and is fully corroborated
                      by theoretical calculations. The
                      poly-N-(1,3,5-triazin-2-yl)-guanidine illustrates an example
                      of a 2D polymerized anionic C─N network and represents the
                      first intermediatebetween highly charged CN 35− anions
                      and fully condensed graphitic carbon nitride networks
                      achieved by HPHT conditions.This opens a pathway to a widely
                      varied family of hydrogen-free nitridocarbonates, which has
                      the potential to develop intoan alternative synthesis route
                      to classical polycondensation reactions},
      cin          = {FS DOOR-User / FS-PET-D},
      ddc          = {540},
      cid          = {$I:(DE-H253)FS_DOOR-User-20241023$ /
                      I:(DE-H253)FS-PET-D-20190712},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3) / 631 - Matter –
                      Dynamics, Mechanisms and Control (POF4-631) / FS-Proposal:
                      I-20230654 (I-20230654) / FS-Proposal: I-20230233
                      (I-20230233) / FS-Proposal: I-20221160 (I-20221160) / HIPMAT
                      - High-pressure nitride materials: towards the controllable
                      and scalable synthesis in a diamond anvil cell (101077963)},
      pid          = {G:(DE-HGF)POF4-6G3 / G:(DE-HGF)POF4-631 /
                      G:(DE-H253)I-20230654 / G:(DE-H253)I-20230233 /
                      G:(DE-H253)I-20221160 / G:(EU-Grant)101077963},
      experiment   = {EXP:(DE-H253)P-P02.2-20150101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1002/anie.202506406},
      url          = {https://bib-pubdb1.desy.de/record/637223},
}