Semi - empirical molecular orbital and UV- Visible study of the Charge transfer complex of 1- ethyl -4- (methoxycarbonyl) pyridinium iodide. ANJS [Internet]. 2006 Jun. 1 [cited 2024 Apr. 28];9(1):29-33. Available from: https://anjs.edu.iq/index.php/anjs/article/view/1689