Halobismuthates with halopyridinium cations: Appearance or non-appearance of unusual colouring

Sergey A. Adonin, Igor D. Gorokh, Alexander S. Novikov, Denis G. Samsonenko, Irina V. Yushina, Maxim N. Sokolov, Vladimir P. Fedin

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

A series of chloro- and bromobismuthate complexes with bromopyridinium cations was prepared and characterized by XRD analysis and diffuse reflectance spectroscopy. In one case, short Cl⋯Br contacts between 2-BrPyH+ and chlorobismuthate units in the solid state result in notable charge transfer and the appearance of unusual coloring. The nature of halogen⋯halogen interactions, which can be regarded as halogen bonding, in the obtained complexes was studied by QTAIM analysis, and their energies were estimated (1.3-3.6 kcal mol-1) and compared with those in related bromo- and iodoplumbates(ii). It is concluded that the presence of halogen bonding is not the single factor affecting the optical properties.

Original languageEnglish
Pages (from-to)7766-7772
Number of pages7
JournalCrystEngComm
Volume20
Issue number48
DOIs
Publication statusPublished - 28 Dec 2018

Keywords

  • PEROVSKITE SOLAR-CELLS
  • STRUCTURAL-CHARACTERIZATION
  • VIBRATIONAL-SPECTRA
  • HALOGEN
  • HYDROGEN
  • COMPLEXES
  • HYBRID
  • BROMIDE
  • CRYSTALS
  • CONTACTS

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