{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Safonova EA"],"funding":["Russian Science Foundation"],"pagination":["1094"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9920145"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["28(3)"],"pubmed_abstract":["The ability of P(V) phthalocyanines (Pcs) for efficient singlet oxygen (SO) generation was demonstrated for the first time by the example of unsubstituted and α- and β-octabutoxy-substituted P(V)Pcs with hydroxy, methoxy and phenoxy ligands in the apical positions of the octahedral P centre. Variation of substituents in Pc ring and P(V) axial ligands allows careful tuning of photophysical and photochemical properties. Indeed, a combination of BuO groups in the β-positions of the Pc ring and PhO groups as axial ligands provides significant SO generation quantum yields up to 90%; meanwhile, the values of SO generation quantum yields for others investigated compounds vary from 27 to 55%. All the complexes, except α-substituted P(V)Pc, demonstrate fluorescence with moderate quantum yields (10-16%). The introduction of electron-donating butoxy groups, especially in the α-position, increases the photostability of P(V)Pcs. Moreover, it has been shown in the example of β-BuO-substituted P(V) that the photostability depends on the nature of axial ligands and increases in the next row: OPh < OMe < OH. The presence of oxy/hydroxy axial ligands on the P(V) atom makes it possible to switch the photochemical and photophysical properties of P(V)Pcs by changing the acidity of the media."],"journal":["Molecules (Basel, Switzerland)"],"pubmed_title":["Tuning Photochemical and Photophysical Properties of P(V) Phthalocyanines."],"pmcid":["PMC9920145"],"funding_grant_id":["22-23-01078"],"pubmed_authors":["Gorbunova YG","Tsivadze AY","Kolomeychuk FM","Safonova EA","Gvozdev DA"],"additional_accession":[]},"is_claimable":false,"name":"Tuning Photochemical and Photophysical Properties of P(V) Phthalocyanines.","description":"The ability of P(V) phthalocyanines (Pcs) for efficient singlet oxygen (SO) generation was demonstrated for the first time by the example of unsubstituted and α- and β-octabutoxy-substituted P(V)Pcs with hydroxy, methoxy and phenoxy ligands in the apical positions of the octahedral P centre. Variation of substituents in Pc ring and P(V) axial ligands allows careful tuning of photophysical and photochemical properties. Indeed, a combination of BuO groups in the β-positions of the Pc ring and PhO groups as axial ligands provides significant SO generation quantum yields up to 90%; meanwhile, the values of SO generation quantum yields for others investigated compounds vary from 27 to 55%. All the complexes, except α-substituted P(V)Pc, demonstrate fluorescence with moderate quantum yields (10-16%). The introduction of electron-donating butoxy groups, especially in the α-position, increases the photostability of P(V)Pcs. Moreover, it has been shown in the example of β-BuO-substituted P(V) that the photostability depends on the nature of axial ligands and increases in the next row: OPh < OMe < OH. The presence of oxy/hydroxy axial ligands on the P(V) atom makes it possible to switch the photochemical and photophysical properties of P(V)Pcs by changing the acidity of the media.","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 Jan","modification":"2025-04-25T19:26:27.004Z","creation":"2025-04-06T07:57:29.57Z"},"accession":"S-EPMC9920145","cross_references":{"pubmed":["36770759"],"doi":["10.3390/molecules28031094"]}}