Gas-phase reactions of atomic lanthanide cations with sulfur hexafluoride: Periodicity in reactivity

被引:14
|
作者
Cheng, Ping
Bohme, Diethard K. [1 ]
机构
[1] York Univ, Ctr Res Mass Spect, Dept Chem, N York, ON M3J 1P3, Canada
[2] York Univ, Ctr Res Earth & Space Sci, N York, ON M3J 1P3, Canada
关键词
D O I
10.1021/ic061000o
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Room-temperature reactions of sulfur hexafluoride (SF6) have been surveyed systematically with atomic lanthanide cations (Ln(+), excluding Pm+) in the gas phase, using an inductively coupled plasma/selected-ion flow tube (ICP/SIFT) tandem mass spectrometer. Rate coefficients and product distributions were measured in helium at a pressure of 0.35 Torr and temperature of 295 K. All the Ln(+) cations were observed to react efficiently (k/k(c) > 0.24) and predominantly by single and multiple F atom and fluoride abstraction to produce both LnF(n)(+) and SFn+(where n = 1, 2, 3). The observed periodic trend in reaction efficiency along the lanthanide row matches the periodic trend in the electron-promotion energy of the Ln(+) cation. A remarkable Arrhenius-like correlation is observed for the dependence of reactivity on promotion energy: the early and late lanthanide cations exhibit effective temperatures of 45 500 and 14 000 K, respectively. SFn+ product ions are observed to be unreactive with SF6, whereas up to two molecules of SF6 have been observed to add to LnF(n)(+) product ions under the experimental operating conditions of the ICP/SIFT tandem mass spectrometer.
引用
收藏
页码:7856 / 7863
页数:8
相关论文
共 50 条
  • [1] Gas-Phase Reactions of Atomic Lanthanide Cations with Ammonia: Room-Temperature Kinetics and Periodicity in Reactivity
    Koyanagi, Gregory K.
    Cheng, Ping
    Bohme, Diethard K.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY A, 2010, 114 (01): : 241 - 246
  • [2] Gas-phase reactions of nitric oxide with atomic lanthanide cations: Room-temperature kinetics and periodicity in reactivity
    Blagojevic, V
    Flaim, E
    Jarvis, MJY
    Koyanagi, GK
    Bohme, DK
    [J]. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 2006, 249 : 385 - 391
  • [3] Gas-phase reactions of atomic lanthanide cations with methyl chloride - Periodicities in reactivity
    Zhao, X
    Koyanagi, GK
    Bohme, DK
    [J]. CANADIAN JOURNAL OF CHEMISTRY, 2005, 83 (11) : 1839 - 1846
  • [4] Gas-phase reactions of atomic lanthanide cations with methyl fluoride: periodicities reactivity
    Koyanagi, GK
    Zhao, X
    Blagojevic, V
    Jarvis, MJY
    Bohme, DK
    [J]. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 2005, 241 (2-3) : 189 - 196
  • [5] Gas-phase reactions of atomic lanthanide cations with D2O:: Room-temperature kinetics and periodicity in reactivity
    Cheng, Ping
    Koyanagi, Gregory K.
    Bohme, Diethard K.
    [J]. CHEMPHYSCHEM, 2006, 7 (08) : 1813 - 1819
  • [6] Gas-Phase Reactions of Sulfur Hexafluoride with Transition Metal and Main Group Atomic Cations: Room-Temperature Kinetics and Periodicities in Reactivity
    Cheng, Ping
    Shayesteh, Alireza
    Bohme, Diethard K.
    [J]. INORGANIC CHEMISTRY, 2009, 48 (03) : 1018 - 1029
  • [7] GAS-PHASE REACTIVITY OF LANTHANIDE CATIONS WITH HYDROCARBONS
    CORNEHL, HH
    HEINEMANN, C
    SCHRODER, D
    SCHWARZ, H
    [J]. ORGANOMETALLICS, 1995, 14 (02) : 992 - 999
  • [8] Gas-phase reactions of lanthanide cations with alcohols
    Carretas, JA
    Marçalo, J
    de Matos, AP
    [J]. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 2004, 234 (1-3) : 51 - 61
  • [9] Nitrogen dioxide reactions with atomic lanthanide cations and their monoxides: gas-phase kinetics at room temperature
    Jarvis, Michael J. Y.
    Blagojevic, Voislav
    Koyanagi, Gregory K.
    Bohme, Diethard K.
    [J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2010, 12 (18) : 4852 - 4862
  • [10] Gas-phase reactions of bare and ligated uranium ions with sulfur hexafluoride
    Jackson, GP
    Gibson, JK
    Duckworth, DC
    [J]. JOURNAL OF PHYSICAL CHEMISTRY A, 2004, 108 (06): : 1042 - 1051