Tetrakis(selenodiazole)porphyrazines. 2: Metal complexes with Mn(II), Co(II), Ni(II), and Zn(II)

✍ Scribed by Silvia Angeloni; Elvira M. Bauer; Claudio Ercolani; Irina A. Popkova; Pavel A. Stuzhin

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 128 KB
• Volume: 05
• Category: Article
• ISSN: 1088-4246
• DOI: 10.1002/jpp.558

✦ Synopsis

The present report describes two series of new porphyrazine macrocycles derived from tetrakis(selenodiazole)porphyrazine, TSeDPzH ~2~, having the formulae [ TSeDPzM ]( CH ~3~ COOH )( H ~2~ O )~x~ M = Mn (II), Co (II), Ni (II), Zn (II); x = 4–6) and [ TSeDPzM ( py )]( CH ~3~ COOH )( H ~2~ O )~x~ ( M = Mn (II), Co (II), Ni (II); x = 1–5), obtained by reaction of the free ligand with the appropriate metal acetate in dimethyl (DMSO), and, respectively, pyridine. All the species isolated are stable-to-air substantially amorphous materials, almost completely insoluble in the usual organic solvents and N -donors (pyridine etc.), and only slightly soluble in CF~3~COOH or 96% H ~2~ SO ~4~. The complexes have been investigated by IR, Raman, and UV-vis spectra, and magnetic susceptibility measurements. Their properties in terms of electronic structure and reactivity towards N -bases are discussed in comparison with their S-containing analogs and the class of the structurally similar metal phthalocyanines.