0181770 - UFCH-W 20030209 RIV GB eng J - Journal Article
Prochnow, P. - Wark, M. - Schulz-Ekloff, G. - Wöhrle, D. - Zukal, Arnošt - Rathouský, Jiří
Cobalt(II) Phthalocyanine Encapsulated in NaY Faujasite: Aggregation of Co(II)-phthalocyanine Encapsulated in NaY Zeolite Due to the Acidity of Ti(IV) Oxide Species Mediated by Pyridine.
Journal of Porphyrins and Phthalocyanines. Roč. 6, - (2003), s. 494-501. ISSN 1088-4246. E-ISSN 1099-1409
R&D Projects: GA AV ČR IAA4040804
Institutional research plan: CEZ:AV0Z4040901
Keywords : cobalt(II)-phthalocyanine * NaY zeolite * titanium(IV)
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 1.438, year: 2003

Co(II)-phthalocyanine (cOPc) was synthesized in the cages of a NaY faujasite matrix and in NaY with co-encapsilated highly dispersed Ti(IV) oxide species. As expected the encaged complexes were immobilized and could not be removed by extraction procedures. Unexpected were reversible aggregations of the CoPc molecules, revealed from DR-UV-vis spectra. The phenomena were attributed to frequently observed (i) local enrichments of the CoPc molecules, i.e., their nonuniform distribution throughout the zeolite crystals, and (ii( local damages, facilitating the contact between CoPc molecules.
Permanent Link: http://hdl.handle.net/11104/0078291