%0 Journal Article
%A Brüning, Lukas
%A Jena, Nityasagar
%A Jurzick, Pascal L.
%A Bykova, Elena
%A Giordano, Nico
%A Mezouar, Mohamed
%A Abrikosov, Igor A.
%A Bykov, Maxim
%T High‐Pressure Synthesis of Crystalline Double‐Layer Carbon Nitride Networks Stabilized in Bi<sub>7</sub>C<sub> 10</sub>N<sub>18</sub>(N<sub>3(1‐ x )</sub>O<sub>3x</sub> )
%J Angewandte Chemie / International edition
%V 64
%N 35
%@ 1433-7851
%C Weinheim
%I Wiley-VCH
%M PUBDB-2025-03815
%P e202506406
%D 2025
%Z 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).
%X 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<sub>7</sub>C<sub> 10</sub>N<sub>18</sub>(N<sub>3(1‐ x )</sub>O<sub>3x</sub> ), 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
%F PUB:(DE-HGF)16
%9 Journal Article
%R 10.1002/anie.202506406
%U https://bib-pubdb1.desy.de/record/637223