%0 Journal Article
%T Ligation kinetics as a probe for gas
%A Diethard K Bohme
%A Gregory K Koyanagi
%A Vitali V Lavrov
%A Voislav Blagojevic
%J European Journal of Mass Spectrometry
%@ 1751-6838
%D 2019
%R 10.1177/1469066718800844
%X 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£¿¡À£¿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
%K Ammonia ligation kinetics
%K atomic transition metal cations
%K ligand field stabilization energy
%K inductively coupled plasma/selected-ion flow tube technique
%U https://journals.sagepub.com/doi/full/10.1177/1469066718800844