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

The reaction of (PNP)NiH, where PNP is ((Bu2PCH2SiMe2)-Bu-t)(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.