Correlation between Pi-Orbital Overlap and Conductivity Bis- Phthalocyaninato Lanthanides
NORTH CAROLINA UNIV AT CHAPEL HILL DEPT OF CHEMISTRY
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Conductivity measurements on praseodymium, neodymium, gadolinium, holmium, erbium, and lutetium phthalocyanine sandwich compounds of the general formula HMPc2 taken with both D. C, and A. C. techniques on pressed pellet samples show a direct correlation with the intraplanar separation between the phthalocyanine ligands. Conductivity measurements on the iodine-doped bis- phthalocyaninato lanthanides, show an average increase of four orders of magnitude when measured with D. C. techniques, and two orders of magnitude when measured with A. C. techniques. The high-temperature conductivity behavior may be explained by using the mobility model. The low-temperature data show hopping conduction behavior.
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