A facile approach to a d4 RuN: moiety.
Replacement of chloride in (PNP)RuCl, PNP = (tBu2PCH2SiMe2)2N, by Me3SiN3 gives a pre-redox adduct that, already at -30 degrees C, releases N2 to produce the mononuclear nonplanar Ru(IV) nitride (PNP)RuN, characterized by spectroscopic and X-ray methods. DFT calculations show the planar structure to be only 1.6 kcal/mol less stable, which explains the time-averaged simplicity of the 1H NMR spectrum, as well as the large vibrational amplitude of the nitride ligand.
Walstrom
Amy
A
Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Room A250B, Bloomington, Indiana 47405-7102, USA.
Pink
Maren
M
Yang
Xiaofan
X
Tomaszewski
John
J
Baik
Mu-Hyun
MH
Caulton
Kenneth G
KG