Synthesis and characterization of binuclear metal phthalocyanine complexes

558-562<span style="font-size:14.0pt;font-family: " times="" new="" roman","serif";mso-fareast-font-family:"times="" roman";mso-ansi-language:="" en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="" lang="EN-US">Hexasulphonated binuclear complexes of copper, nickel and cobalt phthalocyanines, [M2PHS.12H2O, <span style="font-size:14.0pt; font-family:" times="" new="" roman","serif";mso-fareast-font-family:"times="" roman";="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="" lang="EN-US">where M=Cu, Ni or Co and PHS=Hexasulphonated phthalocyaninel are synthesized and characterized by elemental analysis, UV -Vis, Infrared. X-ray diffraction, magnetic susceptibility, ESR, TGA and electrical conductivity studies both before and after iodine doping. The remarkable increase in the electrical conductivities ~106-107 times after iodine doping may be <span style="font-size:14.0pt; font-family:" times="" new="" roman","serif";mso-fareast-font-family:"times="" roman";="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="" lang="EN-US">due to the arrangement of molecules in close facial proximity and the presence of partial oxidation states in the arranged molecular stackings.