119Sn Mössbauer spectroscopy of solvothermally synthesized fluorides ASnF3 (A = Na, K, Rb, Cs)

Author:

Gerke Birgit1,Tran Thanh Thao2,Pöttgen Rainer1,Halasyamani P. Shiv2

Affiliation:

1. Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstrasse 30, 48149 Münster, Germany

2. Department of Chemistry, University of Houston, 112 Fleming Building, Houston, TX 77204-5003, USA

Abstract

Abstract The complex Sn(II) fluorides ASnF3 (A = Na, K, Rb, Cs) were synthesized from the alkali fluorides and SnF2 in methanol through a solvothermal route. Their 119Sn Mössbauer spectra manifest divalent tin. The isomer shifts range from 3.09 to 2.94 mm s–1. The pronounced lone-pair character at the Sn(II) centres is expressed by strong electric quadrupole splitting (1.91–1.95 mm s–1). The two, respectively four crystallographically independent tin sites in NaSnF3, KSnF3 and RbSnF3 could not be resolved in the 119Sn spectra.

Publisher

Walter de Gruyter GmbH

Subject

General Chemistry

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