Dimerization of Copper Octacarboxyphthalocyanine in Aqueous Solutions

• Autorzy: Suchan A. , Nackiewicz J. , Hurek J. , Wacławek W.
• Języki publikacji: EN

Abstrakty

EN

Spectral absorption UV-Vis investigations on association of copper(II) octacarboxyphthalocyanine in aqueous solutions are reported. In 5.0x10-7-5.0x10-5 mol/dm3 concentration range monomers and dimers are mainly present. The calculated dimerization constant 106dm3/mol at 25°C and the hypsochromic spectral shift for the dimer 1164 cm-1 (688 nm_ 637 nm) indicate a stack-like association of molecules and suggestpi-pi interactions between Pc macrocycles in dimer and higher aggregates, in contrast to hydrogen bonding between carboxylic groups of adjacent Pc molecules.

Słowa kluczowe

EN

copper octacarboxyphthalocyanine; association; dimerization; aqueous solution; UV/Vis spectra

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2005
• Tom: Vol. 79 / nr 12
• Strony: 1937--1947
• Opis fizyczny: Bibliogr. 30 poz.

Twórcy

autor

Suchan A.

• Institute of Chemistry, University of Opole, ul. Oleska 48, PL-45-951 Opole, Poland

autor

Nackiewicz J.

• Institute of Chemistry, University of Opole, ul. Oleska 48, PL-45-951 Opole, Poland

autor

Hurek J.

• Institute of Chemistry, University of Opole, ul. Oleska 48, PL-45-951 Opole, Poland

autor

Wacławek W.

• Institute of Chemistry, University of Opole, ul. Oleska 48, PL-45-951 Opole, Poland

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