scholarly journals A photoionization mass spectroscopic study on the formation of phosphanes in low temperature phosphine ices

2015 ◽  
Vol 17 (41) ◽  
pp. 27281-27291 ◽  
Author(s):  
Andrew M. Turner ◽  
Matthew J. Abplanalp ◽  
Si Y. Chen ◽  
Yu T. Chen ◽  
Agnes H. H. Chang ◽  
...  

A homologous series of phosphanes up to P8H10were detected by reflectron time-of-flight mass spectrometry with vacuum ultraviolet photoionization from irradiated phosphine ices.

1998 ◽  
Vol 70 (21) ◽  
pp. 4534-4539 ◽  
Author(s):  
Y. J. Shi ◽  
X. K. Hu ◽  
D. M. Mao ◽  
S. S. Dimov ◽  
R. H. Lipson

2007 ◽  
Vol 85 (10) ◽  
pp. 843-852 ◽  
Author(s):  
Y Liu ◽  
S Consta ◽  
F Ogeer ◽  
Y J Shi ◽  
R H Lipson

Hydrogen-bonded clusters, formed above liquid methanol (Me) and ethanol (Et) mixtures of various compositions, were entrained in a supersonic jet and probed using 118 nm vacuum ultraviolet (VUV) laser single-photon ionization/time-of-flight mass spectrometry. The spectra are dominated by protonated cluster ions, formed by ionizing hydrogen-bonded MemEtn neutrals, m = 0–4, n = 0–3, and m + n = 2–5. The structures and energetics of the neutral and ionic species were investigated using both the all-atom optimized potential for liquid state, OPLS-AA, and the density functional (DFT) calculations. The energetic factors affecting the observed cluster distributions were examined. Calculations indicate that the large change in binding energy going from trimer to tetramer can be attributed more to pair-wise interactions than to cooperativity effects.Key words: alcohol clusters, cluster formation, DFT calculations, mass spectrometry, vacuum ultraviolet laser.


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