S. Sasmaz et al., SYNTHESIS AND CHARACTERIZATION OF NEW PHTHALOCYANINES CONTAINING THIO-OXA-ETHER MOIETIES, Dyes and pigments, 37(3), 1998, pp. 223-230
Metal-free and metal phthalocyanines (M:H-2, Ni, Co, Zn) 4-7 containin
g four 9-membered dithiaoxa macrocycles were prepared. The new compoun
ds were characterized by elemental analyses, and IR, H-1-NMR, UV-VIS a
nd DTA. The dithiaoxa-substituted phthalocyanines are less soluble tha
n the aza and oxa-substituted ones. (C) 1998 Elsevier Science Ltd.