Adsorption of a cationic porphyrin onto mesoporous silicas

Atsuko Yoshida; Norishige Kakegawa; Makoto Ogawa

doi:10.1163/156856703322601735

Adsorption of a cationic porphyrin onto mesoporous silicas

Atsuko Yoshida, Norishige Kakegawa, Makoto Ogawa^*

^*Corresponding author for this work

Waseda University

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

The adsorption of a cationic porphyrin, tetrakis-(N-methyl-4-pyridiniumyl)porphine, into mesoporous silicas from solution of tetrakis-(N-methyl-4-pyridiniumyl)porphine p-toluene sulfonate was investigated. Irrespective of the pore size (2.4, 3.5 and 4.2 nm), the cationic porphyrin was adsorbed effectively onto mesoporous silicas to give brown-colored powders. Depending on the amounts adsorbed, which correlate with the average intermolecular distance, the porphines tend to aggregate (dimer).

Original language	English
Pages (from-to)	721-731
Number of pages	11
Journal	Research on Chemical Intermediates
Volume	29
Issue number	7-9
DOIs	https://doi.org/10.1163/156856703322601735
Publication status	Published - 2003

Keywords

Adsorption
Aggregation
Luminescence
Mesoporous silica
Porphyrin

ASJC Scopus subject areas

Chemistry(all)

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10.1163/156856703322601735

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abstract = "The adsorption of a cationic porphyrin, tetrakis-(N-methyl-4-pyridiniumyl)porphine, into mesoporous silicas from solution of tetrakis-(N-methyl-4-pyridiniumyl)porphine p-toluene sulfonate was investigated. Irrespective of the pore size (2.4, 3.5 and 4.2 nm), the cationic porphyrin was adsorbed effectively onto mesoporous silicas to give brown-colored powders. Depending on the amounts adsorbed, which correlate with the average intermolecular distance, the porphines tend to aggregate (dimer).",

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T1 - Adsorption of a cationic porphyrin onto mesoporous silicas

AU - Yoshida, Atsuko

AU - Kakegawa, Norishige

AU - Ogawa, Makoto

PY - 2003

Y1 - 2003

N2 - The adsorption of a cationic porphyrin, tetrakis-(N-methyl-4-pyridiniumyl)porphine, into mesoporous silicas from solution of tetrakis-(N-methyl-4-pyridiniumyl)porphine p-toluene sulfonate was investigated. Irrespective of the pore size (2.4, 3.5 and 4.2 nm), the cationic porphyrin was adsorbed effectively onto mesoporous silicas to give brown-colored powders. Depending on the amounts adsorbed, which correlate with the average intermolecular distance, the porphines tend to aggregate (dimer).

AB - The adsorption of a cationic porphyrin, tetrakis-(N-methyl-4-pyridiniumyl)porphine, into mesoporous silicas from solution of tetrakis-(N-methyl-4-pyridiniumyl)porphine p-toluene sulfonate was investigated. Irrespective of the pore size (2.4, 3.5 and 4.2 nm), the cationic porphyrin was adsorbed effectively onto mesoporous silicas to give brown-colored powders. Depending on the amounts adsorbed, which correlate with the average intermolecular distance, the porphines tend to aggregate (dimer).

KW - Adsorption

KW - Aggregation

KW - Luminescence

KW - Mesoporous silica

KW - Porphyrin

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ER -

Adsorption of a cationic porphyrin onto mesoporous silicas

Abstract

Keywords

ASJC Scopus subject areas

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