NAEU2CL6 AND NA0.75EU2CL6 - MIXED-VALENT CHLORIDES OF EUROPIUM WITH SODIUM

Authors
WICKLEDER MS MEYER G
Citation
Ms. Wickleder et G. Meyer, NAEU2CL6 AND NA0.75EU2CL6 - MIXED-VALENT CHLORIDES OF EUROPIUM WITH SODIUM, Zeitschrift fur anorganische und allgemeine Chemie, 622(4), 1996, pp. 593-596
Citations number
13
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Zeitschrift fur anorganische und allgemeine Chemie
ISSN journal
00442313 → ACNP
Volume
622
Issue
4
Year of publication
1996
Pages
593 - 596
Database
ISI
SICI code
0044-2313(1996)622:4<593:NAN-MC>2.0.ZU;2-N
Abstract
The reaction of Na2EuCl5 with Eu metal in sealed gold tubes yields blu e single crystals of NaEu2Cl6. It crystallizes with the hexagonal crys tal system (space group P6(3)/m) with a = 755.74(8) pm, c = 429.81(5) pm, Z = 1; the structure is closely related to the UCl3-type. Green si ngle crystals of Na0.75Eu2Cl6 were first obtained as a by-product in t he synthesis of Na2EuCl5 in evacuated silica tubes and may be prepared by reduction of EuCl3 with sodium. Na0.75Eu2Cl6 crystallizes isotypic to NaEu2Cl6 with a = 753.69(11) pm and c = 416.3(2) pm.