Comparison of Co with Mn and Fe in LDH-hosted sulfonato-salen catalysts for olefin epoxidation

Samiran Bhattacharjee; Trevor. J. Dines; James A. Anderson

doi:10.1021/jp804339d

Comparison of Co with Mn and Fe in LDH-hosted sulfonato-salen catalysts for olefin epoxidation

Samiran Bhattacharjee, Trevor. J. Dines, James A. Anderson

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

49 Citations (Scopus)

Abstract

Sulphonato-salen complexes containing Mn(III), Co(III), and Fe(III) metal centers intercalated into Zn/Al layered double-hydroxide (LDH) host have been synthesized and tested as catalysts for the epoxidation of cyclohexene and dicyclopentadiene Using pivaldehyde and Molecular oxygen at atmospheric pressure and room temperature. Oxidation of cyclohexene gave cyclohexene oxide and 2-cyclohexen-1-one as reaction products, whereas dicyclopentadiene was transformed to the cot-responding monoepoxide. Selectivity was found to depend on the central metal ion. Activity (TOF) increased according to LDH-[Fe(Cl)(salen)] < LDH-[Co(Cl)(salen)] < LDH-[Mn(Cl)(salen)] in both case of cyclohexene and dicyclopentadiene epoxidation. The structures of the metal(III) sulfonato-salen complexes were modeled by density functional theory calculations in order to compare differences in dimensions and geometries with differences in gallery height and catalytic behavior.

Original language	English
Pages (from-to)	14124-14130
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	112
Issue number	36
DOIs	https://doi.org/10.1021/jp804339d
Publication status	Published - 11 Sept 2008

Keywords

HYDROGEN-PEROXIDE
ASYMMETRIC EPOXIDATION
SELECTIVE EPOXIDATION
MESOPOROUS MATERIALS
ALLYLIC ALCOHOLS
COMPLEXES
OXIDATION
CYCLOHEXENE
ALKENES
DERIVATIVES

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@article{d813ee8a92c84b948eb2bd245b3bb2fa,

title = "Comparison of Co with Mn and Fe in LDH-hosted sulfonato-salen catalysts for olefin epoxidation",

abstract = "Sulphonato-salen complexes containing Mn(III), Co(III), and Fe(III) metal centers intercalated into Zn/Al layered double-hydroxide (LDH) host have been synthesized and tested as catalysts for the epoxidation of cyclohexene and dicyclopentadiene Using pivaldehyde and Molecular oxygen at atmospheric pressure and room temperature. Oxidation of cyclohexene gave cyclohexene oxide and 2-cyclohexen-1-one as reaction products, whereas dicyclopentadiene was transformed to the cot-responding monoepoxide. Selectivity was found to depend on the central metal ion. Activity (TOF) increased according to LDH-[Fe(Cl)(salen)] < LDH-[Co(Cl)(salen)] < LDH-[Mn(Cl)(salen)] in both case of cyclohexene and dicyclopentadiene epoxidation. The structures of the metal(III) sulfonato-salen complexes were modeled by density functional theory calculations in order to compare differences in dimensions and geometries with differences in gallery height and catalytic behavior.",

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author = "Samiran Bhattacharjee and Dines, {Trevor. J.} and Anderson, {James A.}",

year = "2008",

month = sep,

day = "11",

doi = "10.1021/jp804339d",

language = "English",

volume = "112",

pages = "14124--14130",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Comparison of Co with Mn and Fe in LDH-hosted sulfonato-salen catalysts for olefin epoxidation

AU - Bhattacharjee, Samiran

AU - Dines, Trevor. J.

AU - Anderson, James A.

PY - 2008/9/11

Y1 - 2008/9/11

N2 - Sulphonato-salen complexes containing Mn(III), Co(III), and Fe(III) metal centers intercalated into Zn/Al layered double-hydroxide (LDH) host have been synthesized and tested as catalysts for the epoxidation of cyclohexene and dicyclopentadiene Using pivaldehyde and Molecular oxygen at atmospheric pressure and room temperature. Oxidation of cyclohexene gave cyclohexene oxide and 2-cyclohexen-1-one as reaction products, whereas dicyclopentadiene was transformed to the cot-responding monoepoxide. Selectivity was found to depend on the central metal ion. Activity (TOF) increased according to LDH-[Fe(Cl)(salen)] < LDH-[Co(Cl)(salen)] < LDH-[Mn(Cl)(salen)] in both case of cyclohexene and dicyclopentadiene epoxidation. The structures of the metal(III) sulfonato-salen complexes were modeled by density functional theory calculations in order to compare differences in dimensions and geometries with differences in gallery height and catalytic behavior.

AB - Sulphonato-salen complexes containing Mn(III), Co(III), and Fe(III) metal centers intercalated into Zn/Al layered double-hydroxide (LDH) host have been synthesized and tested as catalysts for the epoxidation of cyclohexene and dicyclopentadiene Using pivaldehyde and Molecular oxygen at atmospheric pressure and room temperature. Oxidation of cyclohexene gave cyclohexene oxide and 2-cyclohexen-1-one as reaction products, whereas dicyclopentadiene was transformed to the cot-responding monoepoxide. Selectivity was found to depend on the central metal ion. Activity (TOF) increased according to LDH-[Fe(Cl)(salen)] < LDH-[Co(Cl)(salen)] < LDH-[Mn(Cl)(salen)] in both case of cyclohexene and dicyclopentadiene epoxidation. The structures of the metal(III) sulfonato-salen complexes were modeled by density functional theory calculations in order to compare differences in dimensions and geometries with differences in gallery height and catalytic behavior.

KW - HYDROGEN-PEROXIDE

KW - ASYMMETRIC EPOXIDATION

KW - SELECTIVE EPOXIDATION

KW - MESOPOROUS MATERIALS

KW - ALLYLIC ALCOHOLS

KW - COMPLEXES

KW - OXIDATION

KW - CYCLOHEXENE

KW - ALKENES

KW - DERIVATIVES

U2 - 10.1021/jp804339d

DO - 10.1021/jp804339d

M3 - Article

SN - 1932-7447

VL - 112

SP - 14124

EP - 14130

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 36

ER -

Comparison of Co with Mn and Fe in LDH-hosted sulfonato-salen catalysts for olefin epoxidation

Abstract

Keywords

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