Atomization Energies of LnX Molecules (Ln = Sm, Eu, and Yb; X = Cl, Br, and I)

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• 作者：Dmitry N. Sergeev ; Vladimir B. Motalov ; Mikhail F. Butman ; Artem E. Kiselev ; Lev S. Kudin ; Karl W. Kr盲mer
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2014
• 出版时间：December 11, 2014
• 年：2014
• 卷：59
• 期：12
• 页码：4010-4014
• 全文大小：193K
• ISSN：1520-5134

文摘

The gas phase equilibria Ba + LnX = BaX + Ln (Ln = Sm, Eu, Yb; X = Cl, Br, I) were investigated by Knudsen effusion mass spectrometry using a low energy of ionizing electrons to avoid fragmentation processes. The BaX molecules were used as references with well-established bond energies. The atomization enthalpies 螖_atH₀^掳 of the LnX molecules were determined to be 427 卤 9 (SmCl), 409 卤 9 (EuCl), 366 卤 9 (YbCl), 360 卤 10 (SmBr), 356 卤 13 (EuBr), 316 卤 9 (YbBr), 317 卤 10 (SmI), 293 卤 10 (EuI), and 283 卤 10 (YbI) kJ路mol^鈥?.