Periodic trends in gas‐phase oxidation and hydrogenation reactions of lanthanides and 5d transition metal cations

2021 ◽  
Author(s):  
P. B. Armentrout
Keyword(s):  
Transition Metal ◽  
Gas Phase ◽  
Metal Cations ◽  
Transition Metal Cations ◽  
Phase Oxidation ◽  
Hydrogenation Reactions ◽  
Gas Phase Oxidation

scholarly journals Ligation kinetics as a probe for gas-phase ligand field effects: Ligation of atomic transition metal cations with ammonia at room temperature

2019 ◽  
Vol 25 (1) ◽  
pp. 44-49 ◽  
Author(s):  
Voislav Blagojevic ◽  
Vitali V Lavrov ◽  
Gregory K Koyanagi ◽  
Diethard K Bohme
Keyword(s):  
Transition Metal ◽  
Gas Phase ◽  
Strong Correlation ◽  
Inductively Coupled Plasma ◽  
Metal Cations ◽  
Ligand Field ◽  
Transition Metal Cations ◽  
Inductively Coupled ◽  
Field Effects ◽  
Selected Ion Flow Tube

The kinetics of ammonia ligation to atomic first and second row transition metal cations were measured in an attempt to assess the role of ligand field effects in gas-phase ion-molecule reaction kinetics. Measurements were performed at 295 ± 2 K in helium bath gas at 0.35 Torr using an inductively coupled plasma/selected-ion flow tube tandem mass spectrometer. The atomic cations were produced at ca. 5500 K in an inductively coupled plasma source and were allowed to decay radiatively and to thermalize by collisions with argon and helium atoms prior to reaction. A strong correlation was observed across the periodic table between the measured rate coefficients for ammonia ligation and measured/calculated bond dissociation energies. A similar strong correlation is seen with the ligand field stabilization energy. So ligand field stabilization energies should provide a useful predictor of relative rates of ligation of atomic metal ions.

Gas-phase reactivity of transition metal cations with cyanogen radical precursors

1994 ◽  
Vol 35 (18) ◽  
pp. 2895-2898 ◽  
Author(s):  
Michel Sablier ◽  
Laure Capron ◽  
Hélène Mestdagh ◽  
Christian Rolando
Keyword(s):  
Transition Metal ◽  
Gas Phase ◽  
Metal Cations ◽  
Transition Metal Cations
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