“…We also recently applied the robustness of pincer ligated iridium complex toward catalytic hydrogenation of CO 2 to form potassium formate with outstanding activity [22]. On the other hand, some recent reports on phosphine-based pincer-iridium complex showed a series of unique oxidative addition reactions to cleave C-H bond of arenes [23][24][25][26][27], alkenes [28], and ketones [29], N-H bond of amines [30][31][32], and O-H bond of water [33]. All of these reactions may involve a formation of T-shape, three-coordinate iridium complex as an intermediate.…”