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Refinement of the structure of sodium enneagermanate (Na4Ge9O20)

✍ Scribed by Fleet, M. E.

Book ID
114506992
Publisher
International Union of Crystallography
Year
1990
Tongue
English
Weight
367 KB
Volume
46
Category
Article
ISSN
0108-2701

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Ge 10 cluster, Na 4 (Ge,Si) 9 O 20 , hydrothermal. A Si modified Ge 10 cluster with structure Na 4 (Ge,Si) 9 O 20 (denoted as HUT-1) was synthesized by hydrothermal synthesis at 160 Β°C with a sodium silicate source. The compound was characterized by single crystal, powder X-ray diffraction and TGA-

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Long-standing uncertainty on the structure type of Na 2 Ge 4 O 9 has been resolved. Sodium tetragermanate has been grown by crystallization from a supercooled melt and its single-crystal X-ray structure has been determined (R ‫؍‬ 0.022). Sodium tetragermanate is trigonal with a ‫؍‬ 11.3234(12), c ‫؍