申请人:Ciba Geigy Corporation
公开号:US04522754A1
公开(公告)日:1985-06-11
The novel complex of the formula I ##STR1## can be produced for example by electrochemical oxidation of 2-fluoro-5,6,11,12-tetraselenotetracene in the presence of an inert organic solvent and a bromide-containing electrolyte. The novel 2-fluoro-5,6,11,12-tetraselenotetracene can for its part be produced by reacting 2,3-naphthalenedicarboxylic anhydride, in the presence of a Friedel-Crafts catalyst, with fluorobenzene to 2-(4-fluorobenzoyl)-naphthalene-3-carboxylic acid; cyclizing this to 2-fluoro-5,12-naphthacenequinone; reducing the 2-fluoro-5,12-naphthacenequinone to 2-fluorotetracene; reacting the 2-fluorotetracene with sulfuryl chloride to 2-fluoro-5,11- or 2-fluoro-6,12-dichlorotetracene; and finally reacting the last-mentioned at elevated temperature with selenium to obtain 2-fluoro-5,6,11,12-tetraselenotetracene. The complex of the formula I is metallically conducting, and is distinguished by a stable metallic phase down to at least 5.degree. K. It can be used for example as an organic conductor element.
公式I的新型复合物可以通过在惰性有机溶剂和含溴电解质的存在下,电化学氧化2-氟-5,6,11,12-四硒代四环戊二烯来制备。新型的2-氟-5,6,11,12-四硒代四环戊二烯可以通过在Friedel-Crafts催化剂的存在下,将2,3-萘二甲酸酐与氟苯反应成2-(4-氟苯甲酰)-萘-3-羧酸;将其环化成2-氟-5,12-萘并喹醌;将2-氟-5,12-萘并喹醌还原成2-氟四环戊二烯;将2-氟四环戊二烯与亚硫酰氯反应成2-氟-5,11-或2-氟-6,12-二氯四环戊二烯;最后,在高温下将后者与硒反应以获得2-氟-5,6,11,12-四硒代四环戊二烯。公式I的复合物具有金属导电性,并以至少5度K的稳定金属相为特点。例如,它可以用作有机导电元件。