Details

Autor(en) / Beteiligte

• Löber, Manuel
• Ströbele, Markus
• Eichele, Klaus
• Romao, Carl P.
• Meyer, Hans‐Jürgen

Titel

The Lithium Iodostannate LiSn3I7: Synthesis, Properties and its Relationship to SnI2

Ist Teil von

• European journal of inorganic chemistry, 2021-12, Vol.2021 (47), p.4929-4934

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Wiley Online Library - AutoHoldings Journals

Beschreibungen/Notizen

• The mixed lithium tin iodide LiSn3I7 was prepared by reacting LiI and SnI2 at 300 °C. Single‐crystal X‐ray diffraction revealed a crystal structure related to that of SnI2, with nearly identical coordination environments of tin atoms. The lithium ion in the structure of LiSn3I7 shares one crystallographic position with a tin atom in octahedral voids of (LiSn)Sn2I7, as confirmed by solid‐state 7Li, 119Sn and 127I MAS NMR spectra. DFT band structure calculations show LiSn3I7 to be a semiconductor with an indirect bandgap on the order of 2 eV. The semiconducting material LiSn3I7 is formed in a straightforward reaction between LiI and SnI2. Lithium ions in the structure share an octahedral site with a tin atom in (LiSn)Sn2I7. Its crystal structure is closely related to that of SnI2. Solid‐state NMR studies provided further insight into the structural arrangement of the compound and the differences from the structure of SnI2.