Influences of the lanthanoid contraction on the thermal dehydration reactions of lanthanoid(III) malonate hydrates.
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概要
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The thermal dehydration reactions of lanthanoid(III) malonate hydrates Ln<SUB>2</SUB>mal<SUB>3</SUB>·<I>n</I>H<SUB>2</SUB>O (Ln=Ce–Lu; mal=CH<SUB>2</SUB>(COO)<SUB>2</SUB>; <I>n</I>=6 for Ce–Eu and 8 for Gd–Lu) were investigated mainly by the thermogravimetries under conventional conditions and in atmosphere of water vapor at a constant reduced pressure and a superslow heating rate. The latter conditions were useful especially to detect the formation of new intermediate hydrates, and to determine the dehydration temperatures with accuracy. The main features of the results could be reasonably understood in view of the effects of the lanthanoid contraction.
- 公益社団法人 日本化学会の論文
著者
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Kikuchi Masae
Institute For Material Research Tohoku University
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Sone Kozo
Department Of Chemistry Faculty Of Science Josai University
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Tanaka Nobuyuki
Department Of Botany Kochi Prefectural Makino Botanical Garden
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Muraishi Kazuo
Department of Chemistry, Faculty of Science, Yamagata University
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Nagase Kenzo
College of General Education, Tohoku University
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Kikuchi Masae
Institute for Iron, Steel and Other Metals, Tohoku University
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