Synthesis, crystal structure, spectral and DFT studies of potent isatin derived metal complexes - Sumrra, Sajjad Hussain; Atif, Aftab Hussain; Zafar, Muhammad Naveed; khalid, Muhammad; Tahir, Muhammad Nawaz; Nazar, Muhammad Faizan; Nadeem, Muhammad Arif; Braga, Ataualpa Albert Carmo (Journal of Molecular Structure, 2018)