The europium (III) complex of coumarin-3-carboxylic acid (C3CA) has been prepared and characterized on the basis of elemental analysis. IR. and emission (photoluminescence and electrochemiluminescence) spectroscopy. The synthesised complex having a formula Eu(C3CA)2(NO3)(H2O)2 was photophysically characterized in solution and in the solid state. https://pipingrockers.shop/product-category/antioxidants/