BONDING IN SOME ZINTL PHASES - A STUDY BY SN-119 MOSSBAUER-SPECTROSCOPY

Authors
ASBRAND M BERRY FJ EISENMANN B KNIEP R SMART LE THIED RC
Citation
M. Asbrand et al., BONDING IN SOME ZINTL PHASES - A STUDY BY SN-119 MOSSBAUER-SPECTROSCOPY, Journal of solid state chemistry, 118(2), 1995, pp. 397-401
Citations number
14
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Physical
Journal title
Journal of solid state chemistry → ACNP
ISSN journal
00224596
Volume
118
Issue
2
Year of publication
1995
Pages
397 - 401
Database
ISI
SICI code
0022-4596(1995)118:2<397:BISZP->2.0.ZU;2-V
Abstract
The Sn-119 Mossbauer parameters for a range of Zintl phase compounds a re reported. The compounds containing tetrahedrally coordinated tin of composition M(5)SnX(3) (M = Na, K; X = P, As, Sb) have chemical isome r shifts close to that of grey-tin and can be considered to be covalen tly bonded species. The layer structures of composition KSnX (X = As, Sb) and double-layer compounds MSn(2)X(2) (M = Na, Sr; X = As, Sb) hav e tin in a distorted octahedral environment. The chemical isomer shift s are closer to that of white-tin and can be interpreted in terms of m etallic bonding. (C) 1995 Academic Press, Inc.