Lead-Free Solid State Mechanochemical Synthesis of CsNaBiFeCl Double Perovskite: Reduces Band Gap and Enhances Optical Properties.

Efficient and stable lead-free halide double perovskites (DPs) have attracted great attention for the future generation of electronic devices. Herein, we have developed a doping approach to incorporate Fe ions into the CsNaBiCl crystal unit and reveal a crystallographic and optoelectronic study of the CsNaBiFeCl double perovskite. We report a simple solid-state mechanochemical method that has a solvent-free, one-step, green chemistry approach for the synthesis of CsNaBiFeCl phosphor.

Total synthesis of (-)-2-methoxy-2-butenolide-3-cinnamate and its antimicrobial potentials.

The first total synthesis of (-)-2-methoxy-2-butenolide-3-cinnamate (butenolide cinnamate) was achieved using commercially available starting material. The synthesized compound was found to have promising antibacterial activity against Gram-negative strains (ATCC 8739), (ATCC 23564) and (ATCC 19154) with a minimum inhibitory concentration of 2.0 µg/mL, 1.