Solid state structures and electrical properties of neutral radical crystals of dicyano(phthalocyaninato)-cobalt(III)

✍ Scribed by Akiko Fujita; Hiroyuki Hasegawa; Toshio Naito; Tamotsu Inabe

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 122 KB
• Volume: 03
• Category: Article
• ISSN: 1088-4246
• DOI: 10.1002/(sici)1099-1409(199912)3:8<720::aid-jpp164>3.0.co;2-#

✦ Synopsis

Electrically conducting neutral radical crystals can be obtained by electrochemical oxidation of dicyano(phthalocyaninato)cobalt(III) anion, [Co(Pc)(CN) 2 ] À . The electrolysis of the potassium salt in DMSO gives Co(Pc)(CN) 2 Á2DMSO. The solvent-free crystal can be obtained by electrolysis of K[Co(Pc)(CN) 2 ] in acetonitrile in the presence of various second components or using salts with other cations. The intermolecular p-p overlap is efficient in the solvent-containing crystal, while that in the solvent-free crystal is much less. The electrical resistivity at room temperature of the latter has been found to be 4.5 Â 10 3 cm, which is nearly three orders higher than that of Co(Pc)(CN) 2 Á2DMSO.