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The preparation of some tetraalkylammonium-lithium-phthalocyanines is described. In contrast to the known dilithium-phthalocyanine these quarternary “onium”-salts are, dependent on the size of the alkyl groups, soluble in non-polar, aprotic solvents. The electronic spectra are investigated as a film on a quartz disk at 10 K. Under these conditions a large number of narrow bands is observed instead of the normally diffuse ones.

zeitschrift für naturforschung b

Darstellung und Charakterisierung von Tetraalkylammonium-lithiumphthaloeyaninen / Preparation and Characterisation of Tetraalkylammonium-lithium-phthalocyanines