Melting points cation radical salts

In this chapter the neutral DA charge transfer complex that exhibits a rapid increase of conductivity during the melt, the cation radical salts of TTF derivatives with low melting point, the anion radical salts of TCNQ with imidazolium cations with low melting point, and l-ethyl-3-methylimidazolium (EMI) salts containing complexes with paramagnetic metals will be described. 

CATION RADICAL SALTS WITH LOW MELTING POINT... 

Recently cation radical salts with a low melting point have been prepared using the TTC7-TTF molecule (m.p. = 44-46°C), in which the n-heptylthio groups attached to both sides of TTF skeleton [11]. 

Compounds 21-23 are cation-radical salts in which the unpaired electron and positive charge are localized on different functional groups. These salts are yellow or orange crystalline substances that decompose at their melting points. Colored solutions of these salts become gradually decolorized, and diamagnetic decomposition products are formed. When salts 21 and 22 are treated with water, they become hydrolyzed to the... 

TABLE 23.2 List of Melting Points (°C) of TCNQ Anion Radical Salts with Imidazollum Cations. Left Panel Salts of 1-alkyl(R )-3-methyl-imldazolium and TCNQ Right Panel Salts 1-ethyl-3-methylimidazo-lium and Substituted TCNQs (R -TCNQ)... 

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