title: A Paramagnetic Diniobium Complex with a Very Short Nb-Nb Distance: Evidence for a Pseudo Nb-Nb Triple Bond?
abstract: In spite of the short Nb-Nb distance (2.268 Å) and the presumable existence of an Nb identical withNb bond, the paddle-wheel-shaped diniobium(II) complex 1 is paramagnetic. Theoretical calculations indicate that the presence of LiCl moieties on the intermetallic axis lowers the Nb-Nb bond order and is responsible for the observed paramagnetism.
authors.affiliation: Department of Chemistry, University of Ottawa, ON, K1N 6N5 (Canada).
authors.initials: M
authors.lastname: Tayebani
authors.initials: K
authors.lastname: Feghali
authors.initials: S
authors.lastname: Gambarotta
authors.initials: GP
authors.lastname: Yap
authors.initials: LK
authors.lastname: Thompson