Synthesis and characterization of the largest isolated clusters of tin, [Sn-12](12-), in (AE)Na10Sn12 (AE = Ca or Sr)

Authors
Bobev, S Sevov, SC
Citation
S. Bobev et Sc. Sevov, Synthesis and characterization of the largest isolated clusters of tin, [Sn-12](12-), in (AE)Na10Sn12 (AE = Ca or Sr), INORG CHEM, 40(21), 2001, pp. 5361-5364
Citations number
28
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
INORGANIC CHEMISTRY
ISSN journal
00201669 → ACNP
Volume
40
Issue
21
Year of publication
2001
Pages
5361 - 5364
Database
ISI
SICI code
0020-1669(20011008)40:21<5361:SACOTL>2.0.ZU;2-3
Abstract
Reported are two isostructural Zintl compounds, CaNa10Sn12 and SrNa10Sn12, with mixed alkali and alkaline-earth cations and isolated clusters Of Sn-12 (12-) with the shape of giant truncated tetrahedra. The compounds were synt hesized by heating the corresponding mixtures of elements at 950 degreesC. The structures were solved and refined from single-crystal X-ray diffractio n data in the cubic space group I (4) over bar 3m (No. 217), where Z = 2 wi th a = 11.1847(6) and 11.2176(4) Angstrom for CaNa10Sn12 and SrNa10Sn12, re spectively. Both compounds are diamagnetic and therefore electronically bal anced.