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New Intermetallic Compounds Nd4Co2Mg3 and Sm4Co2Mg3 — An Intergrowth of AlB2 and CsCl Related Slabs.

✍ Scribed by Selcan Tuncel; Rolf-Dieter Hoffmann; Birgit Heying; Bernard Chevalier; Rainer Poettgen


Publisher
John Wiley and Sons
Year
2006
Weight
9 KB
Volume
37
Category
Article
ISSN
0931-7597

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ChemInform Abstract: New Frequency Doubl
✍ N. MERCIER; M. LEBLANC; J. DURAND 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 30 KB 👁 1 views

The title compounds are prepared by hydrothermal reaction of K2CO3 and LnF3 at 740 • C and 220 MPa. The isostructural compounds crystallize in the rhombohedral space group R32 with Z = 3. The structure consists of KLn2(CO3)3 carbonate and K3F4 fluoride sheets. K4Eu2(CO3)3F4 exhibits a frequency doub