Mn3O4 were synthesized via the hydrothermal method at 200°C for 24 h, using surfactants. The resultant products examined by powder X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), transmission electronic microscope (TEM), UV-visible and BET surface area analysis. as-prepared materials used adsorption of methylene blue dye (MB). effect various experim...

Coumarin derivatives have shown different biological activities, such as antifungal, antibacterial antiinflammatory, and antioxidant besides antibiotic resistance modulating effects, anti-HIV, hepatoprotective, antitumor effect. So, new coumarin (hydrazones an amide) were synthesized through multisteps reactions. All the target compounds characterized by FT-IR spectroscopy, 1HNMR analysis. The ...