On the collisional detachment of two electrons from C4

Bhardwaj, V. R. ; Safvan, C. P. ; Mathur, D. ; Gupta, A. K. (1997) On the collisional detachment of two electrons from C4 International Journal of Mass Spectrometry and Ion Processes, 163 (1-2). pp. 141-147. ISSN 0168-1176

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/S0168-1176(97)00011-6


Double ionization of C4- anions has been studied in collisions with Ar at an impact energy of 30 keV. Both non-dissociative and dissociative double detachment occur. The dominant channel leads to formation of C++C3 fragments. Branching ratios are investigated as a function of the voltage on the cathode of the Cs vapour sputter source of anions; results indicate that C4 anions are overwhelmingly produced in the ground electronic state over a wide range of operating conditions of such a source. Consideration of the energetics leads us to postulate that the vertical ionization energy (IE) of C3 is higher than the IE of C; a lower limit of 11.3 eV is placed for IE(C3).

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Carbon Clusters; Double Detachment; Cluster Anions
ID Code:77562
Deposited On:13 Jan 2012 06:49
Last Modified:13 Jan 2012 06:49

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