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Towards chiral 1,2-naphthalocyanines: 2. Synthesis of lutetium bismacrocyclic derivatives
Preview AbstractStarting from 1,2-naphthalocyanine lutetium acetate (1,2-NcLuOAc) the unsymmetrical lutetium phthalo(naphthalo)cyanine (1,2-NcLuPc) has been synthesized and characterized by optical absorption spectra and fast atom bombardment (FAB) mass spectrometry. 1,2-Naphthalocyanine shows several geometrical isomers, both the mixture (noted Nc∑) and one of them (NcCs) have been used for forming the corresponding bismacrocycles. As a result the first racemic mixture of a chiral unsubstituted phthalo(naphthalo)cyanine complex has been synthesized and characterized.