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Gas-phase ion chemistry in germane–propane and germane–propene mixtures

✍ Scribed by Paola Benzi; Lorenza Operti; Roberto Rabezzana; Gian Angelo Vaglio

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
123 KB
Volume
37
Category
Article
ISSN
1076-5174

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✦ Synopsis

Germane-propane and germane-propene gaseous mixtures were studied by ion trap mass spectrometry. Variations of ion abundances observed under different partial pressure ratios and mechanisms of ion-molecule reactions elucidated by multiple isolation steps are reported. In addition, the rate constants for the main reactions were experimentally determined and compared with the collisional rate constants to obtain the reaction efficiencies. The yield of ions containing both Ge and C atoms is higher in the germane-propene than in the germane-propane system. In the former mixture, chain propagation takes place starting from germane ions reacting with propene and proceeds with the formation of clusters such as Ge(2)C(4)H(n) (+) and Ge(3)CH(n) (+).

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