NA5SN13 - A NEW ZINTL PHASE WITH A COMPLEX NETWORK STRUCTURE CONSTRUCTED FROM TIN PENTAGONS

Authors
VAUGHEY JT CORBETT JD
Citation
Jt. Vaughey et Jd. Corbett, NA5SN13 - A NEW ZINTL PHASE WITH A COMPLEX NETWORK STRUCTURE CONSTRUCTED FROM TIN PENTAGONS, Inorganic chemistry, 36(20), 1997, pp. 4316-4320
Citations number
23
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Inorganic chemistry → ACNP
ISSN journal
00201669
Volume
36
Issue
20
Year of publication
1997
Pages
4316 - 4320
Database
ISI
SICI code
0020-1669(1997)36:20<4316:N-ANZP>2.0.ZU;2-D
Abstract
The compound Na5Sn13 forms in the sodium-tin system in high yield foll owing prolonged reaction of a quenched mixture at 280 degrees C: in a Ta container. The compound exhibits a complex three-dimensional struct ure (29 independent atoms) built mainly of 4-bonded tin atoms In inter bonded pentagons (orthorhombic, space group Cmcm (No. 63); a = 8.979(1 ) Angstrom, b = 19.448(6) Angstrom, c = 50.43(2) Angstrom, Z = 16). Ac cording to Zintl-Klemm electron-counting formalisms, the compound has a closed-shell electronic configuration with the number of 3-bonded Sn - equal to the number of sodium cations. Property measurements show th at the compound is diamagnetic.