Effect of bromine substitution on blue phosphorescent -(N-heterocyclic carbene)Pt(II) acetylide complexes.

N-heterocyclic carbene complexes of the type -(NHC)Pt(CC-Ar) (where Ar = phenyl or substituted phenyl) are of interest as violet and blue phosphors. These complexes emit efficient phosphorescence in solution and in the solid state, and they have been applied as phosphors in organic light emitting diodes. This study explores the effect of bromine substitution on the -(NHC)Pt(CC-Ar) chromophore through photophysical studies of a pair of complexes in which the phenyl groups feature either 3,5-dibromo- or 4-monobromo-substituents (IPt-DB and IPt-MB, respectively).

Health awareness, lifestyle and dietary behavior of university students in the northeast part of Bangladesh.

Introduction: University students generally face a variety of challenges. During this period of life, they practice some unhealthy eating patterns and lifestyles. Therefore, we aimed to assess the health awareness status of university students from the northeast part of Bangladesh and to evaluate its associated factors.