Mass spectrometric study of molecular and ionic sublimation of lanthanum triiodide
Data(s) |
2015
|
---|---|
Resumo |
The molecular and ionic composition of saturated vapor over lanthanum triiodide was studied by Knudsen effusion mass spectrometry. The (LaI3)n molecules (n = 1–3) and the [I(LaI3)n]− ions (n = 0–4) were observed. The partial pressures of the molecules were determined and the enthalpies of sublimation, ΔsH° (298.15 K) in kJ mol−1, in the form of monomers (304 ± 7), dimers (428 ± 25), and trimers (455 ± 50) were obtained by the second and third laws of thermodynamics. The enthalpy of formation, ΔfH° (298.15 K) in kJ mol−1, of the LaI3 (−376 ± 10), La2I6 (−932 ± 25), La3I9 (−1585 ± 50) molecules and the LaI4− (−841 ± 24), La2I7− (−1486 ± 32) ions were determined. The electron work function, φe = 3.5 ± 0.3 eV, for the LaI3 crystal was calculated from the thermochemical cycle. |
Formato |
application/pdf |
Identificador |
http://boris.unibe.ch/74686/1/253_Dunaev_TA_LaI3.pdf Dunaev, A.M.; Kudin, L.S.; Motalov, V.B.; Ivanov, D.A.; Butman, M.F.; Krämer, Karl (2015). Mass spectrometric study of molecular and ionic sublimation of lanthanum triiodide. Thermochimica Acta, 622, pp. 82-87. Elsevier 10.1016/j.tca.2015.09.008 <http://dx.doi.org/10.1016/j.tca.2015.09.008> doi:10.7892/boris.74686 info:doi:10.1016/j.tca.2015.09.008 urn:issn:0040-6031 |
Idioma(s) |
eng |
Publicador |
Elsevier |
Relação |
http://boris.unibe.ch/74686/ |
Direitos |
info:eu-repo/semantics/restrictedAccess |
Fonte |
Dunaev, A.M.; Kudin, L.S.; Motalov, V.B.; Ivanov, D.A.; Butman, M.F.; Krämer, Karl (2015). Mass spectrometric study of molecular and ionic sublimation of lanthanum triiodide. Thermochimica Acta, 622, pp. 82-87. Elsevier 10.1016/j.tca.2015.09.008 <http://dx.doi.org/10.1016/j.tca.2015.09.008> |
Palavras-Chave | #570 Life sciences; biology #540 Chemistry |
Tipo |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed |