“…The present study also reveals the same observation that the sterically hindered complexes (2 and 3) show higher cleavage activity. 61,63,64 The DNA cleavage activity is observed for 1, 2, and 3 in both reducing and oxidizing conditions. Complexes 1, 2, and 3 show 29, 18, and 24% DNA cleavage, respectively, in the presence of GSH, whereas 35, 26, and 32% DNA cleavage activity, respectively, is shown in H 2 O 2 .…”