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Complexing properties of phenol—formaldehyde cyclic oligomers and their derivatives

✍ Scribed by Rocco Ungaro; Andrea Pochini; Paola Melegari

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
188 KB
Volume
40
Category
Article
ISSN
0020-1693

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Effects of substituents and solvents on
Effects of substituents and solvents on the photochemical properties of zinc phthalocyanine complexes and their protonated derivatives
✍ Abimbola Ogunsipe; Tebello Nyokong 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 232 KB

Zinc phthalocyanine derivatives containing various ring substituents and axial ligands were studied with respect to the effect of substituents on protonation. Aggregation resulted in failure of some of the ZnPc derivatives to protonate. In fact addition of protonating agents to aggregated ZnPc deriv