The reaction of ((Pr2PE)-Pr-i)(2)NM center dot TMEDA (M = Li, E = Se; M = Na, E = Te) with NiBr2 center dot DME in THF affords Ni[((SePPr2)-Pr-i)(2)N](2) as either square-planar (green) or tetrahedral (red) stereoisomers, depending on the recrystallization solvent; the Te analogue is obtained as the square-planar complex Ni[(TeP(i)pr(2))(2)N](2).
- single-crystal characterization
- nickel(II) complexes
- discrete mononuclear
- fenise hydrogenases