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Crystal Structure, Solid‐state Polymerization, and Ionic Conductivity of Alkali Salts of Unsaturated Carboxylic Acids, 4 . Investigations on Lithium Sorbate
Author(s) -
Schlitter Stephan M.,
Beck Horst P.
Publication year - 1996
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19961291224
Subject(s) - chemistry , polymerization , lithium (medication) , ionic conductivity , ionic bonding , crystal structure , polymer , alkali metal , polymer chemistry , inorganic chemistry , crystallography , organic chemistry , ion , medicine , electrode , electrolyte , endocrinology
The structure of lithium sorbate (C 6 H 7 LiO 2 ) was determined by single‐crystal X‐ray diffraction. It may be divided into organic and inorganic layers. The ionic part of the structure consists of a two‐dimensional network of corner‐ and edge‐sharing lithium oxotetrahedra, a structural pattern already known from other lithium carboxylates. Irradiation of the substance with X‐rays or its thermal treatment results in the formation of a polymer exhibiting ionic conductivity at higher temperatures. Due to the rather large distances between potentially reactive atoms the polymerization results in a structural breakdown. Nevertheless, during the solid‐state polymerization preferred orientations of building units are partially preserved. The probable course of the polymerization and the structure of the resulting polymer are discussed.