Surprising isomer preference on Ir(III), favoring facile H-C(sp(3)) bond cleavage.

Species (PNP)Ir(X)(Y), where PNP = N(SiMe(2)CH(2)P(t)Bu(2))(2)(-1) with X and Y halide, have a (t)Bu group C-H bond heterolytically split by addition across the Ir-N bond.

Unusual selectivity of a (pincer)Ni-hydride reacting with CO2.

The reaction of (PNP)NiH, where PNP is ((t)Bu2PCH2SiMe2)2-N(-1), with CO2 occurs over a period of hours at 25 degrees C to form (POP)NiH(NCO), which involves transposition of the initial amide nitrogen and one oxygen of CO2.