Thermodynamic Modulation of Dihydrogen Activation Through Rational Ligand Design in Ge^II-Ni⁰ Complexes.

ABSTRACT: A family of chelating aryl-functionalized germylene ligands has been developed and employed in the synthesis of their corresponding 16-electron Ni⁰ complexes (^PhiPDippGeAr·Ni·IPr; ^PhiPDipp = {[Ph₂PCH₂Si(ⁱPr)₂](Dipp)N}^-; IPr = [{(H)CN(Dipp)}₂C:]; Dipp = 2,6-ⁱPr₂C₆H₃). These complexes demonstrate the ability to cooperatively and reversibly activate dihydrogen at the germylene-nickel interface under mild conditions (1.5 atm H₂, 298 K). We show that the thermodynamics of the dihydrogen activation process can be modulated by tuning the electronic nature of the germylene ligands, with an increase in the electron-withdrawing character displaying

SUBMITTER: Keil PM 

PROVIDER: S-EPMC11345810 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature