A Planar Three-Coordinate Vanadium(II) Complex and the Study of Terminal Vanadium Nitrides from N<sub>2</sub>: A Kinetic or Thermodynamic Impediment to N–N Bond Cleavage?
- Ba L. Tran (1307589)
- Balazs Pinter (1400638)
- Adam J. Nichols (2056315)
- Felicia T. Konopka (2056318)
- Rick Thompson (1637347)
- Chun-Hsing Chen (1497616)
- J. Krzystek (1415551)
- Andrew Ozarowski (384497)
- Joshua Telser (1497613)
- Mu-Hyun Baik (1466125)
- Karsten Meyer (1321857)
- Daniel J. Mindiola (1321854)
DOIAbstract
We report the first mononuclear three-coordinate vanadium(II) complex [(nacnac)V(ODiiP)] and its activation of N<sub>2</sub> to form an end-on bridging dinitrogen complex with a topologically linear V(III)N<sub>2</sub>V(III) core and where each vanadium center antiferromagnetically couples to give a ground state singlet with an accessible triplet state as inferred by HFEPR spectroscopy. In addition to investigating the conversion of N<sub>2</sub> to the terminal nitride (as well as the microscopic reverse process), we discuss its similarities and contrasts to the isovalent <i>d</i><sup>3</sup> system, [Mo(N[<sup><i>t</i></sup>Bu]Ar)<sub>3</sub>], and the <i>S</i> = 1 system [(Ar[<sup><i>t</i></sup>Bu]N)<sub>3</sub>Mo]<sub>2</sub>...
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