Caesium enneabromodibismuthate

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Caesium enneabromodibismuthate
Sample of Cs3Bi2Br9.jpg
Identifiers
3D model (JSmol)
  • InChI=1S/2Bi.7BrH.2Br.3Cs/h;;7*1H;;;;;/q2*+3;;;;;;;;2*-1;3*+1/p-7
    Key: VNSDDZRTQJLTGI-UHFFFAOYSA-G
  • [Br-][Bi](Br)(Br)(Br)[Br-][Bi](Br)(Br)(Br)[Br-].[Cs+].[Cs+].[Cs+]
Properties
Bi2Br9Cs3
Molar mass 1535.813 g·mol−1
AppearanceYellow crystals
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Caesium enneabromodibismuthate is an inorganic compound with the formula Cs3Bi2Br9. It is one of the coordination complexes formed by caesium, bismuth and bromine. [1] At room temperature, it is trigonal (P3m1) and it undergoes phase transformation to monoclinic phase (C12/c1) when the temperature is below 96 K. [2]

Preparation

Traditionally, it can be synthesized from a hydrobromic acid solution of stoichiometric amounts of caesium bromide and bismuth hydroxide or bismuth(III) oxide, [3] crystals are formed by cooling the hot, saturated solution. [4] It can also be obtained by reacting caesium bromide and bismuth(III) bromide in DMF, followed by vaporizing the solvent. [5] Its nanocrystals can be synthesized in 1-octadecene at 170 °C using caesium oleate and bismuth(III) bromide as precursors. [6]

References

  1. ↑ Tran, Minh N.; Cleveland, Iver J.; Aydil, Eray S. (January 2021). "Physical vapor deposition of the halide perovskite CsBi2Br7". Journal of Vacuum Science & Technology A. 39 (1): 013409. Bibcode:2021JVSTA..39a3409T. doi:10.1116/6.0000604. eISSN   1520-8559. ISSN   0734-2101. S2CID   234115452.
  2. ↑ Tran, Minh N.; Cleveland, Iver J.; Aydil, Eray S. (2020). "Resolving the discrepancies in the reported optical absorption of low-dimensional non-toxic perovskites, Cs3Bi2Br9 and Cs3BiBr6". Journal of Materials Chemistry C. 8 (30): 10456–10463. doi:10.1039/d0tc02783a. eISSN   2050-7534. ISSN   2050-7526. S2CID   225578432.
  3. ↑ Terao, Hiromitsu; Ishihara, Hideta; Okuda, Tsutomu; Yamada, Koji; Weiss, Alarich (1 December 1992). "Phase Transition in Cesium Enneabromodibismuthate(III), Cs3Bi2Br9; an 81Br and 209Bi NQR Study". Zeitschrift für Naturforschung A. 47 (12): 1259–1261. doi: 10.1515/zna-1992-1217 . eISSN   1865-7109. ISSN   0932-0784. S2CID   197265206.
  4. ↑ Timmermans, C. W. M.; Blasse, G. (1 August 1981). "On the Luminescence of Cs3Bi2Br9 Single Crystals". Physica Status Solidi B (in German). 106 (2): 647–655. Bibcode:1981PSSBR.106..647T. doi:10.1002/pssb.2221060230. eISSN   1521-3951. ISSN   0370-1972.
  5. ↑ Romani, Lidia; Speltini, Andrea; Dibenedetto, Carlo Nazareno; Listorti, Andrea; Ambrosio, Francesco; Mosconi, Edoardo; Simbula, Angelica; Saba, Michele; Profumo, Antonella; Quadrelli, Paolo; De Angelis, Filippo; Malavasi, Lorenzo (6 September 2021). "Experimental Strategy and Mechanistic View to Boost the Photocatalytic Activity of Cs3Bi2Br9 Lead-Free Perovskite Derivative by g-C3N4 Composite Engineering". Advanced Functional Materials. 31 (46): 2104428. doi: 10.1002/adfm.202104428 . eISSN   1616-3028. hdl: 11584/334481 . ISSN   1616-301X.
  6. ↑ Ghosh, Sirshendu; Mukhopadhyay, SankhaSubhra; Paul, Sumana; Pradhan, Bapi; De, Subodh Kumar (15 October 2020). "Control Synthesis and Alloying of Ambient Stable Pb-Free Cs3Bi2Br9(1–x)I9x (0 ≤ x ≤ 1) Perovskite Nanocrystals for Photodetector Application". ACS Applied Nano Materials. 3 (11): 11107–11117. doi:10.1021/acsanm.0c02288. eISSN   2574-0970. ISSN   2574-0970. S2CID   228958674.
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