Loading…
Sublimation properties of CoF 3 : mass spectrometric and quantum chemical studies
The sublimation of cobalt trifluoride was studied using the Knudsen effusion method combined with mass spectrometry. The pressure of F was directly measured for decomposition of CoF 3 (s) into CoF 2 (s). The average kinetic energy of $\hbox{\bf CoF}_{\bf 2}^{\hbox{\bf +}}, \hbox{\bf CoF}^{\hbox{\bf...
Saved in:
| Published in: | Rapid communications in mass spectrometry 2001-05, Vol.15 (10), p.749-757 |
|---|---|
| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | The sublimation of cobalt trifluoride was studied using the Knudsen effusion method combined with mass spectrometry. The pressure of F was directly measured for decomposition of CoF
3
(s) into CoF
2
(s). The average kinetic energy of
$\hbox{\bf CoF}_{\bf 2}^{\hbox{\bf +}}, \hbox{\bf CoF}^{\hbox{\bf +}}$
and
$\hbox{\bf Co}^{\hbox{\bf +}}$
fragment ions was determined and the relative ionisation cross section curves measured from 6 eV to 100 eV. Thermodynamic functions of gaseous CoF
3
and Co
2
F
6
, were evaluated from geometrical and vibrational parameters provided from theoretical calculations. Heats of formation of CoF
3
(s), CoF
3
(g), Co
2
F
6
(g) were established as (−784 ± 6) kJ/mol, (−565 ± 11) kJ/mol and (−1289 ± 22) kJ/mol, respectively. Copyright © 2001 John Wiley & Sons, Ltd. |
|---|---|
| ISSN: | 0951-4198 1097-0231 |
| DOI: | 10.1002/rcm.292 |