SYNTHESIS AND CHARACTERIZATION OF NEW PHTHALOCYANINES PERIPHERALLY FUSED TO 4 13-MEMBERED TETRATHIAMACROCYCLES

The new metal-free phthalocyanine 5 and phthalocyaninatometals 6-8 (M=Co, Ni, or Zn) fused in peripheral positions with four 13-membered tetrathiamacrocycles were prepared by cyclotetramerization of 2,3,6,7,9,10-hexa-hydro-5H-[1,4,8,11] benzotetrathiacyclotridecine-13,14-dicarbonitrile in the presence of a suitable metal salt or a strong organic base. In contrast to the aza- or oxamacrocycle-fused analogs, the solubility of these phthalocyanines is very low. Complexation of the tetrathiamacrocycles of 7 and 8 with Pd-II or Ag-I to form pentanuclear products was accomplished from their suspensions.