A series of novel polymer-supported mixed ligand complexes were synthesized and studied. Two percent divinyl benzene (DVB)-crosslinked polystyrene supports were synthesized by the suspension copolymerization technique. An ethylene diamine group was anchored onto the support and the corresponding copper complexes were prepared. The ligating functions like phthalate, acetate, and oxalate groups were introduced, and mixed ligands complexes were synthesized. The resultant polymer supported mixed ligand complexes were characterized by UV-Vis, IR, and EPR methods. The stability constants dictate the formation of these complexes on polymer support. Spectral results gave information about the structure, stability, and geometry of the mixed ligand complexes. These factors were discussed in detail.

With society being shaken both metaphorically and materially due to the unprecedented pandemic caused by Covid-19, how could education be spared its consequences? Almost suddenly, millions of instructors and students from primary to higher education institutions were forced to adjust to the new normal. Due to the disruptive development, it became critical to sustain educational standards in addition to safeguarding health. Online teaching-learning became the new normal. This paper attempts to trace the development, implementation, and positive impact of online teaching-learning at a selected university.