ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
The Crystal Structures of Alkali Methane Thiolates CH3SM (M = Li, Na, K)The crystal structures of the alkali methane thiolates CH3SM (M = Li, Na, K) have been determined from X-ray powder data. All compounds have tetragonal lattices (space group P 4/nmm). CH3SLi and CH3SNa are of the same type as CH3OLi and CH3ONa, whereas CH3SK is of the CH3OK-type. Both types represent layer structures with CH3S groups having an antiparallel arrangement to each other along the c axis. In this way each layer is covered by methyl groups on both sides. The alkali ions are located in the central part of the layer, being co-ordinated by four (M =Li, Na) or five (M = K) sulfur ions.
Notes:
Die Kristallstrukturen der Alkalimethylmercaptide CH3SM (M = Li, Na, K) wurden aus Pulverdaten ermittelt. Alle Verbindungen kristallisieren tetragonal (Raumgruppe P 4/nmm); dabei sind CH3SLi und CH3SNa isotyp mit CH3OLi, während CH3SK vom CH3OK-Typ ist. In beiden Typen liegen Schichtstrukturen vor. Die CH3S-Gruppen sind antiparallel zueinander in Richtung der c-Achse angeordnet. Jede Schicht ist damit außen von Methylgruppen bedeckt, während die Alkali-Ionen im Schichtinneren von vier (M = Li, Na) bzw. fünf (M = K) Schwefel-Ionen koordiniert sind.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19721050214
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