Abstract
In the litterature, the substituents of tetrasubstituted metallophthalocyanines obtained from 4-substitued phthalonitriles (or analogous compounds), are usually placed on the 4,4',4'',4''' positions or on random positions. In this paper, we show, by a proton NMR study that the positions of this substituants are perfectly determined. They are oriented on the 4, 4', 5'', 5''' positions during the formation of macrocyle. A possible mechanism is presented for this cyclisation.
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