Reaction of Sc+, Ti+, and V+ with CO. MC+ and MO+ bond energies
- 1 September 1991
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 95 (5) , 3387-3393
- https://doi.org/10.1063/1.460844
Abstract
The reactions of Sc+, Ti+, and V+ with CO are studied as a function of translational energy in a guided-ion-beam tandem mass spectrometer. Formation of both metal-carbide and metal-oxide ions are observed and rationalized by a direct atom abstraction mechanism. At high energies, the ScC+ and ScO+ cross sections exhibit additional features that are unusual but can be explained by an impulsive pairwise mechanism and formation of excited-state product ions, respectively. Thresholds of the reaction cross sections are interpreted to give the 0 K bond energies (in eV) D0(ScC+)=3.34±0.06, D0(TiC+)=4.05±0.24, D0(VC+)=3.87±0.14, D0(ScO+)=7.11±0.08, D0(TiO+)=6.88±0.07, and D0(VO+)=5.81±0.17. Additional studies are used to help verify the bond energy for ScO+ and yield a recommended value of 7.14±0.11 eV. The nature of the bonding in MO+ and MC+ is discussed and compared for these three metal ions.Keywords
This publication has 34 references indexed in Scilit:
- Periodic trends in chemical reactivity: reactions of scandium(1+), yttrium(1+), lanthanum(1+), and lutetium(1+) with hydrogen, deuterium and hydrogen-d1The Journal of Physical Chemistry, 1989
- Effect of kinetic and electronic energy on the reactions of Ti+ with H2, HD, and D2International Journal of Mass Spectrometry and Ion Processes, 1988
- Molecular bonding with scandium: Diatomics ScH, ScO, ScC, and ScNThe Journal of Chemical Physics, 1988
- Methane activation by titanium(1+): electronic and translational energy dependenceThe Journal of Physical Chemistry, 1988
- Reaction of silicon ion (2P) with silane (SiH4, SiD4). Heats of formation of SiHn, SiHn+ (n = 1, 2, 3), and Si2Hn+ (n = 0, 1, 2, 3). Remarkable isotope exchange reaction involving four-hydrogen shiftsJournal of the American Chemical Society, 1987
- Reaction of scandium ions with ethane. First and second hydride-scandium ion bond energiesJournal of the American Chemical Society, 1987
- Effect of kinetic and electronic energy on the reactions of iron(1+) with hydrogen, deuterium hydride, and deuterium: state-specific cross sections for Fe+(6D) and Fe+(4F)The Journal of Physical Chemistry, 1986
- Effect of kinetic and electronic energy on the reactions of Mn+ with H2, HD, and D2The Journal of Chemical Physics, 1986
- Effect of kinetic and electronic energy on the reaction of vanadium(1+) (V+) with molecular hydrogen, hydrogen deuteride, and molecular deuteriumThe Journal of Physical Chemistry, 1985
- Ion beam studies of the reactions of atomic cobalt ions with alkanes: determination of metal-hydrogen and metal-carbon bond energies and an examination of the mechanism by which transition metals cleave carbon-carbon bondsJournal of the American Chemical Society, 1981