Preparation, Characterization and In Vitro Biological Activities of New Diphenylsulphone Derived Schiff Base Ligands and Their Co(II) Complexes oleh Kundalkesha D. Gaikwad, Panchsheela Ubale, Rahul Khobragade, Sachin Deodware, Pratibha Dhale, Mahadev R. Asabe, Rekha M. Ovhal, Pranav Singh, Prashant Vishwanath, Chandan Shivamallu, Raghu Ram Achar, Ekaterina Silina, Victor Stupin, Natalia Manturova, Ali A. Shati, Mohammad Y. Alfaifi, Serag Eldin I. Elbehairi, Shashikant H. Gaikwad, Shiva Prasad Kollur