Reactions of laser-ablated Fe, Co, and Ni with NO: Infrared spectra and density functional calculations of MNO+ and M(NO)(x) (M = Fe, Co, x=1-3; M = Ni, x=1, 2), and M(NO)(x)(-) (M = Co, Ni; x=1, 2)
Mf. Zhou et L. Andrews, Reactions of laser-ablated Fe, Co, and Ni with NO: Infrared spectra and density functional calculations of MNO+ and M(NO)(x) (M = Fe, Co, x=1-3; M = Ni, x=1, 2), and M(NO)(x)(-) (M = Co, Ni; x=1, 2), J PHYS CH A, 104(17), 2000, pp. 3915-3925
Laser-ablated iron, cobalt, and nickel atoms, cations, and electrons have b
een reacted with NO molecules during condensation in excess neon and argon.
The end-on bonded Fe(NO)(1-3), CO(NO)(1-3), and Ni(NO)(1-2) nitrosyls and
side-bonded Fe-(eta(2)-NO), Co-(eta(2)-NO), and Ni-(eta(2)-NO) species are
formed during sample deposition or on annealing. The FeNO+, CoNO+, and NiNO
+ mononitrosyl cations are also produced via metal cation reactions with NO
. Evidence is also presented for the Ni(NO)(1,2)- and Co(NO)(1,2)- anions.
The product absorptions are identified by isotopic substitution ((NO)-N-15-
O-16, (NO)-N-15-O-18 and mixtures), electron trapping with added CCl4, and
density functional calculations of isotopic frequencies. This work provides
the first vibrational spectroscopic characterization of Fe, Co, and Ni nit
rosyl cations and anions.