Intercalation behavior of n-alkylamines into a protonated form of a layered perovskite derived from aurivillius phase Bi2SrTa2O9

Yu Tsunoda, Wataru Sugimoto, Yoshiyuki Sugahara

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    Abstract

    Intercalation behavior of n-alkylamines into a protonated form of a layered perovskite, H1.8[Sr0.8Bi0.2Ta2O7], derived from an Aurivillius phase, Bi2SrTa2O9, has been investigated. H1.8[Sr0.8Bi0.2Ta2O7] can accommodate n-alkylamines (CmHm+1NH2; m = 4, 8, 12, 18) to form intercalation compounds via an acid-base mechanism. The interlayer distance increases to 2.071(2) (m = 4), 2.840(9) (m = 8), 3.83(1) (m = 12), and 5.17(2) (m = 18) nm. In contrast, H1.8[Sr0.8Bi0.2Ta2O7] does not form any intercalation compound with pyridine, which is a weaker base, indicating that the protons in H1.8[Sr0.8Bi0.2Ta2O7] are weakly acidic. The IR spectra of the intercalation compounds with n-alkylamines (m = 12 and 18) clearly show that n-alkyl chains possess an all-trans conformation. A linear relationship is observed between the interlayer distance and the number of carbon atoms in n-alkyl chains, and this corresponds to a bilayer arrangement of the n-alkyl chains with a tilt angle of 60°. Despite the relatively high proton content (1.8 H+ per [Sr0.8Bi0.2Ta2O7]), only 0.9-1.0 mol of n-alkylamines per Sr0.8Bi0.2Ta2O7] is intercalated. This observation can be reasonably interpreted based on the surface geometry of the perovskite-like slab and the size of n-alkylamines.

    Original languageEnglish
    Pages (from-to)632-635
    Number of pages4
    JournalChemistry of Materials
    Volume15
    Issue number3
    DOIs
    Publication statusPublished - 2003 Feb 11

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    Intercalation compounds
    Intercalation
    Perovskite
    Protons
    Pyridine
    Conformations
    Carbon
    Atoms
    Hydrogen
    Acids
    Geometry
    perovskite

    ASJC Scopus subject areas

    • Materials Science(all)
    • Materials Chemistry

    Cite this

    Intercalation behavior of n-alkylamines into a protonated form of a layered perovskite derived from aurivillius phase Bi2SrTa2O9 . / Tsunoda, Yu; Sugimoto, Wataru; Sugahara, Yoshiyuki.

    In: Chemistry of Materials, Vol. 15, No. 3, 11.02.2003, p. 632-635.

    Research output: Contribution to journalArticle

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    abstract = "Intercalation behavior of n-alkylamines into a protonated form of a layered perovskite, H1.8[Sr0.8Bi0.2Ta2O7], derived from an Aurivillius phase, Bi2SrTa2O9, has been investigated. H1.8[Sr0.8Bi0.2Ta2O7] can accommodate n-alkylamines (CmHm+1NH2; m = 4, 8, 12, 18) to form intercalation compounds via an acid-base mechanism. The interlayer distance increases to 2.071(2) (m = 4), 2.840(9) (m = 8), 3.83(1) (m = 12), and 5.17(2) (m = 18) nm. In contrast, H1.8[Sr0.8Bi0.2Ta2O7] does not form any intercalation compound with pyridine, which is a weaker base, indicating that the protons in H1.8[Sr0.8Bi0.2Ta2O7] are weakly acidic. The IR spectra of the intercalation compounds with n-alkylamines (m = 12 and 18) clearly show that n-alkyl chains possess an all-trans conformation. A linear relationship is observed between the interlayer distance and the number of carbon atoms in n-alkyl chains, and this corresponds to a bilayer arrangement of the n-alkyl chains with a tilt angle of 60°. Despite the relatively high proton content (1.8 H+ per [Sr0.8Bi0.2Ta2O7]), only 0.9-1.0 mol of n-alkylamines per Sr0.8Bi0.2Ta2O7] is intercalated. This observation can be reasonably interpreted based on the surface geometry of the perovskite-like slab and the size of n-alkylamines.",
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    N2 - Intercalation behavior of n-alkylamines into a protonated form of a layered perovskite, H1.8[Sr0.8Bi0.2Ta2O7], derived from an Aurivillius phase, Bi2SrTa2O9, has been investigated. H1.8[Sr0.8Bi0.2Ta2O7] can accommodate n-alkylamines (CmHm+1NH2; m = 4, 8, 12, 18) to form intercalation compounds via an acid-base mechanism. The interlayer distance increases to 2.071(2) (m = 4), 2.840(9) (m = 8), 3.83(1) (m = 12), and 5.17(2) (m = 18) nm. In contrast, H1.8[Sr0.8Bi0.2Ta2O7] does not form any intercalation compound with pyridine, which is a weaker base, indicating that the protons in H1.8[Sr0.8Bi0.2Ta2O7] are weakly acidic. The IR spectra of the intercalation compounds with n-alkylamines (m = 12 and 18) clearly show that n-alkyl chains possess an all-trans conformation. A linear relationship is observed between the interlayer distance and the number of carbon atoms in n-alkyl chains, and this corresponds to a bilayer arrangement of the n-alkyl chains with a tilt angle of 60°. Despite the relatively high proton content (1.8 H+ per [Sr0.8Bi0.2Ta2O7]), only 0.9-1.0 mol of n-alkylamines per Sr0.8Bi0.2Ta2O7] is intercalated. This observation can be reasonably interpreted based on the surface geometry of the perovskite-like slab and the size of n-alkylamines.

    AB - Intercalation behavior of n-alkylamines into a protonated form of a layered perovskite, H1.8[Sr0.8Bi0.2Ta2O7], derived from an Aurivillius phase, Bi2SrTa2O9, has been investigated. H1.8[Sr0.8Bi0.2Ta2O7] can accommodate n-alkylamines (CmHm+1NH2; m = 4, 8, 12, 18) to form intercalation compounds via an acid-base mechanism. The interlayer distance increases to 2.071(2) (m = 4), 2.840(9) (m = 8), 3.83(1) (m = 12), and 5.17(2) (m = 18) nm. In contrast, H1.8[Sr0.8Bi0.2Ta2O7] does not form any intercalation compound with pyridine, which is a weaker base, indicating that the protons in H1.8[Sr0.8Bi0.2Ta2O7] are weakly acidic. The IR spectra of the intercalation compounds with n-alkylamines (m = 12 and 18) clearly show that n-alkyl chains possess an all-trans conformation. A linear relationship is observed between the interlayer distance and the number of carbon atoms in n-alkyl chains, and this corresponds to a bilayer arrangement of the n-alkyl chains with a tilt angle of 60°. Despite the relatively high proton content (1.8 H+ per [Sr0.8Bi0.2Ta2O7]), only 0.9-1.0 mol of n-alkylamines per Sr0.8Bi0.2Ta2O7] is intercalated. This observation can be reasonably interpreted based on the surface geometry of the perovskite-like slab and the size of n-alkylamines.

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