Co6(μ3-OH)6 cluster based coordination polymer as an effective heterogeneous catalyst for aerobic epoxidation of alkenes

Junkuo Gao; Linlu Bai; Qian Zhang; Yongxin Li; Ganguly Rakesh; Jong Min Lee; Yanhui Yang; Qichun Zhang

doi:10.1039/c3dt52562g

Co₆(μ₃-OH)₆ cluster based coordination polymer as an effective heterogeneous catalyst for aerobic epoxidation of alkenes

Junkuo Gao, Linlu Bai, Qian Zhang, Yongxin Li, Ganguly Rakesh, Jong Min Lee, Yanhui Yang^*, Qichun Zhang

^*Corresponding author for this work

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

53 Citations (Scopus)

Abstract

A new hexaprismane Co(ii)₆(μ₃-OH)₆ cluster-based three-dimensional coordination polymer ({Co(μ₃-OH) (HCOO)_0.72(CH₃COO)_0.28}_n, Co6-CP) was successfully synthesized and characterized with single-crystal XRD, IR spectra, TGA spectra and elemental analysis. Co6-CP was used as an effective heterogeneous catalyst for the aerobic epoxidation of various alkenes. For the catalytic epoxidation of trans-stilbene, the conversion and selectivity towards the epoxide reached 98.6 and 98.0%, respectively. Also, an average TOF of 22 h^-1 was obtained for the reaction. The results indicated that Co6-CP displayed excellent aerobic epoxidation activity among the reported coordination polymer materials, even rivaling the traditional heterogeneous cobalt catalysts. The influence of the reaction parameters such as temperature and oxygen flow rate for the epoxidation of the trans-stilbene were also studied in detail.

Original language	English
Pages (from-to)	2559-2565
Number of pages	7
Journal	Dalton Transactions
Volume	43
Issue number	6
DOIs	https://doi.org/10.1039/c3dt52562g
Publication status	Published - Feb 14 2014
Externally published	Yes

ASJC Scopus Subject Areas

Inorganic Chemistry

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title = "Co6(μ3-OH)6 cluster based coordination polymer as an effective heterogeneous catalyst for aerobic epoxidation of alkenes",

abstract = "A new hexaprismane Co(ii)6(μ3-OH)6 cluster-based three-dimensional coordination polymer ({Co(μ3-OH) (HCOO)0.72(CH3COO)0.28}n, Co6-CP) was successfully synthesized and characterized with single-crystal XRD, IR spectra, TGA spectra and elemental analysis. Co6-CP was used as an effective heterogeneous catalyst for the aerobic epoxidation of various alkenes. For the catalytic epoxidation of trans-stilbene, the conversion and selectivity towards the epoxide reached 98.6 and 98.0%, respectively. Also, an average TOF of 22 h-1 was obtained for the reaction. The results indicated that Co6-CP displayed excellent aerobic epoxidation activity among the reported coordination polymer materials, even rivaling the traditional heterogeneous cobalt catalysts. The influence of the reaction parameters such as temperature and oxygen flow rate for the epoxidation of the trans-stilbene were also studied in detail.",

author = "Junkuo Gao and Linlu Bai and Qian Zhang and Yongxin Li and Ganguly Rakesh and Lee, {Jong Min} and Yanhui Yang and Qichun Zhang",

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doi = "10.1039/c3dt52562g",

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T1 - Co6(μ3-OH)6 cluster based coordination polymer as an effective heterogeneous catalyst for aerobic epoxidation of alkenes

AU - Gao, Junkuo

AU - Bai, Linlu

AU - Zhang, Qian

AU - Li, Yongxin

AU - Rakesh, Ganguly

AU - Lee, Jong Min

AU - Yang, Yanhui

AU - Zhang, Qichun

PY - 2014/2/14

Y1 - 2014/2/14

N2 - A new hexaprismane Co(ii)6(μ3-OH)6 cluster-based three-dimensional coordination polymer ({Co(μ3-OH) (HCOO)0.72(CH3COO)0.28}n, Co6-CP) was successfully synthesized and characterized with single-crystal XRD, IR spectra, TGA spectra and elemental analysis. Co6-CP was used as an effective heterogeneous catalyst for the aerobic epoxidation of various alkenes. For the catalytic epoxidation of trans-stilbene, the conversion and selectivity towards the epoxide reached 98.6 and 98.0%, respectively. Also, an average TOF of 22 h-1 was obtained for the reaction. The results indicated that Co6-CP displayed excellent aerobic epoxidation activity among the reported coordination polymer materials, even rivaling the traditional heterogeneous cobalt catalysts. The influence of the reaction parameters such as temperature and oxygen flow rate for the epoxidation of the trans-stilbene were also studied in detail.

AB - A new hexaprismane Co(ii)6(μ3-OH)6 cluster-based three-dimensional coordination polymer ({Co(μ3-OH) (HCOO)0.72(CH3COO)0.28}n, Co6-CP) was successfully synthesized and characterized with single-crystal XRD, IR spectra, TGA spectra and elemental analysis. Co6-CP was used as an effective heterogeneous catalyst for the aerobic epoxidation of various alkenes. For the catalytic epoxidation of trans-stilbene, the conversion and selectivity towards the epoxide reached 98.6 and 98.0%, respectively. Also, an average TOF of 22 h-1 was obtained for the reaction. The results indicated that Co6-CP displayed excellent aerobic epoxidation activity among the reported coordination polymer materials, even rivaling the traditional heterogeneous cobalt catalysts. The influence of the reaction parameters such as temperature and oxygen flow rate for the epoxidation of the trans-stilbene were also studied in detail.

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DO - 10.1039/c3dt52562g

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JF - Dalton Transactions

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Co₆(μ₃-OH)₆ cluster based coordination polymer as an effective heterogeneous catalyst for aerobic epoxidation of alkenes

Abstract

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