Intercalation of cationic phthalocyanines into layered titanates and control of the microstructures

Ryozo Kaito, Nobuyoshi Miyamoto, Kazuyuki Kuroda, Makoto Ogawa

    Research output: Contribution to journalArticle

    22 Citations (Scopus)

    Abstract

    Two cationic phthalocyanines (Pc), a tetravalent Alcian Blue pyridine variant (ABpy4+) and a monovalent iron(III) phthalocyanine (FePc+), were intercalated into two layered titanates derived from Na2Ti3O7 and CsxTi2-x/4x/4O4 (≡ = vacancy, x = 0.7) by using the corresponding propylammonium titanates as the intermediates for guest displacement reactions. When Na2Ti3O7 was used as a host, segregation occurred in the products, since it has a relatively higher layer charge density; some interlayer spaces accommodated Pc, but the others contained propylammonium cations. On the other hand, Pc cations were homogeneously intercalated into the interlayer spaces of Ti2-x/4x/4O4 layers. ABpy4+ formed agglomerates in the gallery between Ti2-x/4x/4O4 layers, whereas FePc+ was distributed molecularly. In the ABpy-Ti2-x/4x/4O4system, further ABpy4+ was added or any remaining propylammonium cations were removed by thermal treatment under reduced pressure in order to vary the microstructure, which resulted in the formation of higher aggregated states of ABpy4+. Electron transfer from FePc+ to Ti2-x/4x/4O4 induced by visible light irradiation was observed for FePc-Ti2-x/4x/4O4 by fluorescence measurements.

    Original languageEnglish
    Pages (from-to)3463-3468
    Number of pages6
    JournalJournal of Materials Chemistry
    Volume12
    Issue number12
    DOIs
    Publication statusPublished - 2002 Dec 1

    Fingerprint

    titanates
    Intercalation
    intercalation
    Positive ions
    Cations
    cations
    microstructure
    Microstructure
    interlayers
    Charge density
    Pyridine
    Vacancies
    pyridines
    electron transfer
    Fluorescence
    Heat treatment
    Irradiation
    Iron
    iron
    fluorescence

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Materials Science(all)
    • Materials Chemistry

    Cite this

    Intercalation of cationic phthalocyanines into layered titanates and control of the microstructures. / Kaito, Ryozo; Miyamoto, Nobuyoshi; Kuroda, Kazuyuki; Ogawa, Makoto.

    In: Journal of Materials Chemistry, Vol. 12, No. 12, 01.12.2002, p. 3463-3468.

    Research output: Contribution to journalArticle

    Kaito, Ryozo ; Miyamoto, Nobuyoshi ; Kuroda, Kazuyuki ; Ogawa, Makoto. / Intercalation of cationic phthalocyanines into layered titanates and control of the microstructures. In: Journal of Materials Chemistry. 2002 ; Vol. 12, No. 12. pp. 3463-3468.
    @article{80c30797ff3c4d61b08fb6c62568c2b2,
    title = "Intercalation of cationic phthalocyanines into layered titanates and control of the microstructures",
    abstract = "Two cationic phthalocyanines (Pc), a tetravalent Alcian Blue pyridine variant (ABpy4+) and a monovalent iron(III) phthalocyanine (FePc+), were intercalated into two layered titanates derived from Na2Ti3O7 and CsxTi2-x/4≡x/4O4 (≡ = vacancy, x = 0.7) by using the corresponding propylammonium titanates as the intermediates for guest displacement reactions. When Na2Ti3O7 was used as a host, segregation occurred in the products, since it has a relatively higher layer charge density; some interlayer spaces accommodated Pc, but the others contained propylammonium cations. On the other hand, Pc cations were homogeneously intercalated into the interlayer spaces of Ti2-x/4≡x/4O4 layers. ABpy4+ formed agglomerates in the gallery between Ti2-x/4≡x/4O4 layers, whereas FePc+ was distributed molecularly. In the ABpy-Ti2-x/4≡x/4O4system, further ABpy4+ was added or any remaining propylammonium cations were removed by thermal treatment under reduced pressure in order to vary the microstructure, which resulted in the formation of higher aggregated states of ABpy4+. Electron transfer from FePc+ to Ti2-x/4≡x/4O4 induced by visible light irradiation was observed for FePc-Ti2-x/4≡x/4O4 by fluorescence measurements.",
    author = "Ryozo Kaito and Nobuyoshi Miyamoto and Kazuyuki Kuroda and Makoto Ogawa",
    year = "2002",
    month = "12",
    day = "1",
    doi = "10.1039/b210237b",
    language = "English",
    volume = "12",
    pages = "3463--3468",
    journal = "Journal of Materials Chemistry",
    issn = "0959-9428",
    publisher = "Royal Society of Chemistry",
    number = "12",

    }

    TY - JOUR

    T1 - Intercalation of cationic phthalocyanines into layered titanates and control of the microstructures

    AU - Kaito, Ryozo

    AU - Miyamoto, Nobuyoshi

    AU - Kuroda, Kazuyuki

    AU - Ogawa, Makoto

    PY - 2002/12/1

    Y1 - 2002/12/1

    N2 - Two cationic phthalocyanines (Pc), a tetravalent Alcian Blue pyridine variant (ABpy4+) and a monovalent iron(III) phthalocyanine (FePc+), were intercalated into two layered titanates derived from Na2Ti3O7 and CsxTi2-x/4≡x/4O4 (≡ = vacancy, x = 0.7) by using the corresponding propylammonium titanates as the intermediates for guest displacement reactions. When Na2Ti3O7 was used as a host, segregation occurred in the products, since it has a relatively higher layer charge density; some interlayer spaces accommodated Pc, but the others contained propylammonium cations. On the other hand, Pc cations were homogeneously intercalated into the interlayer spaces of Ti2-x/4≡x/4O4 layers. ABpy4+ formed agglomerates in the gallery between Ti2-x/4≡x/4O4 layers, whereas FePc+ was distributed molecularly. In the ABpy-Ti2-x/4≡x/4O4system, further ABpy4+ was added or any remaining propylammonium cations were removed by thermal treatment under reduced pressure in order to vary the microstructure, which resulted in the formation of higher aggregated states of ABpy4+. Electron transfer from FePc+ to Ti2-x/4≡x/4O4 induced by visible light irradiation was observed for FePc-Ti2-x/4≡x/4O4 by fluorescence measurements.

    AB - Two cationic phthalocyanines (Pc), a tetravalent Alcian Blue pyridine variant (ABpy4+) and a monovalent iron(III) phthalocyanine (FePc+), were intercalated into two layered titanates derived from Na2Ti3O7 and CsxTi2-x/4≡x/4O4 (≡ = vacancy, x = 0.7) by using the corresponding propylammonium titanates as the intermediates for guest displacement reactions. When Na2Ti3O7 was used as a host, segregation occurred in the products, since it has a relatively higher layer charge density; some interlayer spaces accommodated Pc, but the others contained propylammonium cations. On the other hand, Pc cations were homogeneously intercalated into the interlayer spaces of Ti2-x/4≡x/4O4 layers. ABpy4+ formed agglomerates in the gallery between Ti2-x/4≡x/4O4 layers, whereas FePc+ was distributed molecularly. In the ABpy-Ti2-x/4≡x/4O4system, further ABpy4+ was added or any remaining propylammonium cations were removed by thermal treatment under reduced pressure in order to vary the microstructure, which resulted in the formation of higher aggregated states of ABpy4+. Electron transfer from FePc+ to Ti2-x/4≡x/4O4 induced by visible light irradiation was observed for FePc-Ti2-x/4≡x/4O4 by fluorescence measurements.

    UR - http://www.scopus.com/inward/record.url?scp=0036926654&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0036926654&partnerID=8YFLogxK

    U2 - 10.1039/b210237b

    DO - 10.1039/b210237b

    M3 - Article

    AN - SCOPUS:0036926654

    VL - 12

    SP - 3463

    EP - 3468

    JO - Journal of Materials Chemistry

    JF - Journal of Materials Chemistry

    SN - 0959-9428

    IS - 12

    ER -