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Die Kristallstruktur des Kaliummethylats
Author(s) -
Weiss E.
Publication year - 1963
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19630460624
Subject(s) - chemistry , tetragonal crystal system , crystal structure , potassium , crystallography , methoxide , group (periodic table) , ion , stereochemistry , organic chemistry
The crystal structure of potassium methoxide has been determined from X‐ray powder data. KOCH 3 is tetragonal (space group P 4/ nmm D 4 h 7 ) with a = 3,95 å, c = 8,77 å Z = 2. It has a double‐layer structure with KOCH 3 ‐units arranged perpendicularly to the plane, having their methyl groups alternately on either side of the layer. The arrangement of the oxygen atoms and potassium ions is very similar to that previously reported for potassium acetylenediolate, with K‐O: 2,66 and 2,80 å K‐K: 3,68 å O–O: 4,03 å OCH 3 : 1,40 Å.