Epoxidations catalyzed by an ionic manganese(III) porphyrin and characterization of manganese(V, IV)-oxo porphyrin complexes by UV-vis spectrophotometer in ionic liquid solution

Hong Jiao Zhang; Ye Liu; Yong Lu; Xiao Shuang He; Xia Wang; Xia Ding

doi:10.1016/j.molcata.2008.03.001

Epoxidations catalyzed by an ionic manganese(III) porphyrin and characterization of manganese(V, IV)-oxo porphyrin complexes by UV-vis spectrophotometer in ionic liquid solution

Hong Jiao Zhang, Ye Liu, Yong Lu, Xiao Shuang He, Xia Wang, Xia Ding

School of Chemistry and Molecular Engineering

East China Normal University

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

27 Scopus citations

Abstract

An ionic metalloporphyrin of manganese tetrakis-(4-N-trimethylaminophenyl)porphyrin hexafluorophosphate ([Mn^IIITTMAPP][PF₆]₅, 1c), resided in the mixed ionic liquids (ILs) of [BzMIM]BF₄ and [BMIM]BF₄, proved to be an efficient and recyclable catalytic system for styrene (derivative) epoxidations without the involvement of the auxiliary axial ligands. The epoxidation rate in 1c-IL could be dramatically promoted by addition of water. In the built-up 1c-IL-H₂O system, the active manganese(V)-oxo porphyrin intermediate (1d, 444 nm) was stabilized to facilitate its detection by a UV-vis spectrophotometer. And the formation of the μ-oxo Mn(IV) porphyrin dimer (1e, 416 nm) was completely suppressed due to the counteraction between 1c and the IL.

Original language	English
Pages (from-to)	80-86
Number of pages	7
Journal	Journal of Molecular Catalysis A: Chemical
Volume	287
Issue number	1-2
DOIs	https://doi.org/10.1016/j.molcata.2008.03.001
State	Published - 15 May 2008

Keywords

Epoxidation
Ionic liquids
Manganese porphyrins
UV-vis spectrophotometer

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10.1016/j.molcata.2008.03.001

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title = "Epoxidations catalyzed by an ionic manganese(III) porphyrin and characterization of manganese(V, IV)-oxo porphyrin complexes by UV-vis spectrophotometer in ionic liquid solution",

abstract = "An ionic metalloporphyrin of manganese tetrakis-(4-N-trimethylaminophenyl)porphyrin hexafluorophosphate ([MnIIITTMAPP][PF6]5, 1c), resided in the mixed ionic liquids (ILs) of [BzMIM]BF4 and [BMIM]BF4, proved to be an efficient and recyclable catalytic system for styrene (derivative) epoxidations without the involvement of the auxiliary axial ligands. The epoxidation rate in 1c-IL could be dramatically promoted by addition of water. In the built-up 1c-IL-H2O system, the active manganese(V)-oxo porphyrin intermediate (1d, 444 nm) was stabilized to facilitate its detection by a UV-vis spectrophotometer. And the formation of the μ-oxo Mn(IV) porphyrin dimer (1e, 416 nm) was completely suppressed due to the counteraction between 1c and the IL.",

keywords = "Epoxidation, Ionic liquids, Manganese porphyrins, UV-vis spectrophotometer",

author = "Zhang, \{Hong Jiao\} and Ye Liu and Yong Lu and He, \{Xiao Shuang\} and Xia Wang and Xia Ding",

year = "2008",

month = may,

day = "15",

doi = "10.1016/j.molcata.2008.03.001",

language = "英语",

volume = "287",

pages = "80--86",

journal = "Journal of Molecular Catalysis A: Chemical",

issn = "1381-1169",

publisher = "Elsevier B.V.",

number = "1-2",

}

Epoxidations catalyzed by an ionic manganese(III) porphyrin and characterization of manganese(V, IV)-oxo porphyrin complexes by UV-vis spectrophotometer in ionic liquid solution. / Zhang, Hong Jiao; Liu, Ye ; Lu, Yong et al.
In: Journal of Molecular Catalysis A: Chemical, Vol. 287, No. 1-2, 15.05.2008, p. 80-86.

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

TY - JOUR

T1 - Epoxidations catalyzed by an ionic manganese(III) porphyrin and characterization of manganese(V, IV)-oxo porphyrin complexes by UV-vis spectrophotometer in ionic liquid solution

AU - Zhang, Hong Jiao

AU - Liu, Ye

AU - Lu, Yong

AU - He, Xiao Shuang

AU - Wang, Xia

AU - Ding, Xia

PY - 2008/5/15

Y1 - 2008/5/15

N2 - An ionic metalloporphyrin of manganese tetrakis-(4-N-trimethylaminophenyl)porphyrin hexafluorophosphate ([MnIIITTMAPP][PF6]5, 1c), resided in the mixed ionic liquids (ILs) of [BzMIM]BF4 and [BMIM]BF4, proved to be an efficient and recyclable catalytic system for styrene (derivative) epoxidations without the involvement of the auxiliary axial ligands. The epoxidation rate in 1c-IL could be dramatically promoted by addition of water. In the built-up 1c-IL-H2O system, the active manganese(V)-oxo porphyrin intermediate (1d, 444 nm) was stabilized to facilitate its detection by a UV-vis spectrophotometer. And the formation of the μ-oxo Mn(IV) porphyrin dimer (1e, 416 nm) was completely suppressed due to the counteraction between 1c and the IL.

AB - An ionic metalloporphyrin of manganese tetrakis-(4-N-trimethylaminophenyl)porphyrin hexafluorophosphate ([MnIIITTMAPP][PF6]5, 1c), resided in the mixed ionic liquids (ILs) of [BzMIM]BF4 and [BMIM]BF4, proved to be an efficient and recyclable catalytic system for styrene (derivative) epoxidations without the involvement of the auxiliary axial ligands. The epoxidation rate in 1c-IL could be dramatically promoted by addition of water. In the built-up 1c-IL-H2O system, the active manganese(V)-oxo porphyrin intermediate (1d, 444 nm) was stabilized to facilitate its detection by a UV-vis spectrophotometer. And the formation of the μ-oxo Mn(IV) porphyrin dimer (1e, 416 nm) was completely suppressed due to the counteraction between 1c and the IL.

KW - Epoxidation

KW - Ionic liquids

KW - Manganese porphyrins

KW - UV-vis spectrophotometer

UR - https://www.scopus.com/pages/publications/43549116560

U2 - 10.1016/j.molcata.2008.03.001

DO - 10.1016/j.molcata.2008.03.001

M3 - 文章

AN - SCOPUS:43549116560

SN - 1381-1169

VL - 287

SP - 80

EP - 86

JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

IS - 1-2

ER -

Epoxidations catalyzed by an ionic manganese(III) porphyrin and characterization of manganese(V, IV)-oxo porphyrin complexes by UV-vis spectrophotometer in ionic liquid solution

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