A mass spectrometric study of the vaporization of erbium hexafluoroacetylacetonate

作者：Girichev G V^*; Shlykov S A; Giricheva N I; Krasnov A V; Zyabko I O; Kuz'mina N P; Zaitseva I G

来源：Russian Journal of Physical Chemistry, 2007, 81(4): 524-527.

DOI：10.1134/S0036024407040048

The sublimation of erbium tris-hexafluoroacetylacetonate Er(C5O2HF6)3 was studied by the Knudsen effusion method with the mass spectrometric determination of vapor composition. Groups of ions containing one, two, and three metal atoms were recorded. The enthalpies of sublimation of the monomeric, dimeric, and trimeric forms. Delta(s) H degrees(362 K) were found to be 133 +/- 4, 135 +/- 7, and 139 +/- 38 kJ/mol, respectively. The melting point of Er(C5O2HF6)(3) was 390 +/- 2 K. No oligomeric forms were observed in vapor superheated above 430 K.

• 出版日期2007-4
• 单位北京化工大学