Crystal Structure, thermal study, vibrational and optical propertiesof a novel dinuclear Bismuth(III) Iodide trimethylenedipyridine compound

Abstract

International audienceBismuth-based materials have stimulated much interest due to their uniquephotoluminescence behavior. To date, several luminescent bismuth (III) complexes ligated byN-donor ligands have been investigated. In this work, a new luminescent binuclearcompound built from BiI 3 with a pyridine-type ligand, synthesized in MeOH solution andcrystallized under slow evaporation method. This halide-bridged binuclear compound, whichis also doubly bridged by 4,4’-trimethylenedipyridine, was characterized through singlecrystal X-ray diffraction at 100 K. Its thermal behavior was investigated via TGA-DTA, aswell as its vibrational spectra by Infrared and Raman spectroscopy. Furthermore, thephotoluminescence properties were examined through steady-state and time-dependentluminescence techniques