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Zeolite-Y immobilized Metallo-ligand complexes: A novel heterogenous catalysts for selective oxidation.

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Title: Zeolite-Y immobilized Metallo-ligand complexes: A novel heterogenous catalysts for selective oxidation.
Authors: Godhani, Dinesh R.1 drgodhani@yahoo.com, Nakum, Haresh D.1, Parmar, Digvijaysinh K.1, Mehta, Jignasu P.1, Desai, Nisheeth C.1
Source: Inorganic Chemistry Communications. Oct2016, Vol. 72, p105-116. 12p.
Subjects: Metal complexes, Transition metals, Copper compounds, Zeolite Y, Oxidation, Cyclohexane
Abstract: Transition metal [M = Co(II), Cu(II)] complexes of H 2 L 1 and H 2 L 2 ligands have been prepared as neat and nanohybrid zeolite-Y immobilized complexes. The various analytical tools such as FTIR, ICP-AES, elemental analysis, UV–vis, Brunauer, Emmett and Teller (BET) surface area analysis, Thermal analysis, scanning electron micrographs, Powder XRD, conductivity, magnetic moment, and AAS were employed for the characterization of the prepared catalysts. Among all catalysts, the [Cu(L 1 )]-Y (heterogeneous) and [Cu(L 1 )] (homogeneous) have offered high activity and selectivity over oxidation of cyclohexene. Moreover, the [Cu(L 1 )] and [Cu(L 1 )]-Y were employed as catalyst over various organic substrates at identical reaction condition. The immobilized catalyst [Cu(L 1 )]-Y is found to be moderate active over oxidation of cyclohexane (75.2%,), benzene (8.21%), phenol (14.5%), styrene (87.5), benzyl alcohol (21.5%), limonene (11.2%), α-pinene (9.15%), and cyclooctane (76.8%) with high TON values (21942-2054). The mechanistic study using UV–vis and FTIR suggests the participation of active metalperoxo species, which is reinforced by its high catalytic activity over limonene (16.3%) in the absence oxidant. [ABSTRACT FROM AUTHOR]
Copyright of Inorganic Chemistry Communications is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
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PubTypeId: academicJournal
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  Data: Zeolite-Y immobilized Metallo-ligand complexes: A novel heterogenous catalysts for selective oxidation.
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  Data: <searchLink fieldCode="AR" term="%22Godhani%2C+Dinesh+R%2E%22">Godhani, Dinesh R.</searchLink><relatesTo>1</relatesTo><i> drgodhani@yahoo.com</i><br /><searchLink fieldCode="AR" term="%22Nakum%2C+Haresh+D%2E%22">Nakum, Haresh D.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Parmar%2C+Digvijaysinh+K%2E%22">Parmar, Digvijaysinh K.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Mehta%2C+Jignasu+P%2E%22">Mehta, Jignasu P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Desai%2C+Nisheeth+C%2E%22">Desai, Nisheeth C.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Inorganic+Chemistry+Communications%22">Inorganic Chemistry Communications</searchLink>. Oct2016, Vol. 72, p105-116. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Metal+complexes%22">Metal complexes</searchLink><br /><searchLink fieldCode="DE" term="%22Transition+metals%22">Transition metals</searchLink><br /><searchLink fieldCode="DE" term="%22Copper+compounds%22">Copper compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Zeolite+Y%22">Zeolite Y</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation%22">Oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Cyclohexane%22">Cyclohexane</searchLink>
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  Data: Transition metal [M = Co(II), Cu(II)] complexes of H 2 L 1 and H 2 L 2 ligands have been prepared as neat and nanohybrid zeolite-Y immobilized complexes. The various analytical tools such as FTIR, ICP-AES, elemental analysis, UV–vis, Brunauer, Emmett and Teller (BET) surface area analysis, Thermal analysis, scanning electron micrographs, Powder XRD, conductivity, magnetic moment, and AAS were employed for the characterization of the prepared catalysts. Among all catalysts, the [Cu(L 1 )]-Y (heterogeneous) and [Cu(L 1 )] (homogeneous) have offered high activity and selectivity over oxidation of cyclohexene. Moreover, the [Cu(L 1 )] and [Cu(L 1 )]-Y were employed as catalyst over various organic substrates at identical reaction condition. The immobilized catalyst [Cu(L 1 )]-Y is found to be moderate active over oxidation of cyclohexane (75.2%,), benzene (8.21%), phenol (14.5%), styrene (87.5), benzyl alcohol (21.5%), limonene (11.2%), α-pinene (9.15%), and cyclooctane (76.8%) with high TON values (21942-2054). The mechanistic study using UV–vis and FTIR suggests the participation of active metalperoxo species, which is reinforced by its high catalytic activity over limonene (16.3%) in the absence oxidant. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Inorganic Chemistry Communications is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.inoche.2016.08.017
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      – Code: eng
        Text: English
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        PageCount: 12
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      – SubjectFull: Metal complexes
        Type: general
      – SubjectFull: Transition metals
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      – SubjectFull: Copper compounds
        Type: general
      – SubjectFull: Zeolite Y
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      – SubjectFull: Oxidation
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      – SubjectFull: Cyclohexane
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      – TitleFull: Zeolite-Y immobilized Metallo-ligand complexes: A novel heterogenous catalysts for selective oxidation.
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              Text: Oct2016
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