Abstract
Electron impact ionization of diethylzinc has been measured by Fourier transform mass spectrometry. The ionization produces the parent ion ZnC 4H 10 + and fragment ions including major metal-containing ions ZnC 2H 5 + and Zn +, as well as organic moiety ions, mainly C 2H 5 +. The total ionization cross-section reaches a maximum of 7.9×10 −16 cm 2 at ∼80 eV. Redistribution of the ion composition by ion–molecule reactions results in the ionic population being dominated by the final product ion ZnC 8H 17 +. Several dimer ions have been observed as the intermediate products in the ion–molecule reactions, but no larger Zn cluster ions have been detected. The argon ion charge-transfer reaction with diethylzinc generates mainly ZnC 2H 5 + and C 2H 5 +.
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