Experimental and computational investigations of new indole derivatives: a combined spectroscopic, SC-XRD, DFT/TD-DFT and QTAIM analysis - Tariq, Sobia; Khalid, Muhammad; Raza, Abdul Rauf; Rubab, Syeda Laila; Morais, Sara Figueirêdo de Alcântara; Khan, Muhammad Usman; Tahir, Muhammad Nawaz; Braga, Ataualpa Albert Carmo (Journal of Molecular Structure, 2020)