An oxidovanadium(IV) complex with 4,4′-di-tert-butyl-2,2′-bipyridine ligand: Synthesis, structure and catalyzed cyclooctene epoxidation

Iakov S. Fomenko, Sandrine Vincendeau, Eric Manoury, Rinaldo Poli, Pavel A. Abramov, Vladimir A. Nadolinny, Maxim N. Sokolov, Artem L. Gushchin

Результат исследования: Научные публикации в периодических изданияхстатья

Выдержка

The interaction of vanadium(III) chloride (VCl3) with 4,4′-di-tert-butyl-2,2′-bipyridine (dbbpy) in air resulted in the monomeric oxidovanadium(IV) complex [VOCl2(dbbpy)(H2O)] (1) in high yield. The complex was characterized by IR and EPR spectroscopies, by elemental analysis, and by single crystal X-ray diffraction analysis. The vanadium atom has a distorted octahedral coordination environment. The EPR spectrum of 1 in CH2Cl2 demonstrates an eight-line signal typical of vanadium(IV) with a d1 electronic configuration. Complex 1 exhibits catalytic activity in the cyclooctene oxidation with tert-butyl hydroperoxide (TBHP) in CHCl3. Detailed EPR, NMR and GC–MS studies of the reaction revealed a few mechanistic details and the nature of by-products that are generated by involvement of the chloroform solvent.

Язык оригиналаанглийский
Номер статьи114305
ЖурналPolyhedron
Том177
DOI
СостояниеОпубликовано - 1 фев 2020

Отпечаток

Vanadium
epoxidation
Epoxidation
vanadium
Paramagnetic resonance
Ligands
ligands
synthesis
tert-Butylhydroperoxide
Chloroform
Chlorine compounds
chloroform
X ray diffraction analysis
Byproducts
catalytic activity
Chlorides
Catalyst activity
chlorides
Nuclear magnetic resonance
Single crystals

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title = "An oxidovanadium(IV) complex with 4,4′-di-tert-butyl-2,2′-bipyridine ligand: Synthesis, structure and catalyzed cyclooctene epoxidation",
abstract = "The interaction of vanadium(III) chloride (VCl3) with 4,4′-di-tert-butyl-2,2′-bipyridine (dbbpy) in air resulted in the monomeric oxidovanadium(IV) complex [VOCl2(dbbpy)(H2O)] (1) in high yield. The complex was characterized by IR and EPR spectroscopies, by elemental analysis, and by single crystal X-ray diffraction analysis. The vanadium atom has a distorted octahedral coordination environment. The EPR spectrum of 1 in CH2Cl2 demonstrates an eight-line signal typical of vanadium(IV) with a d1 electronic configuration. Complex 1 exhibits catalytic activity in the cyclooctene oxidation with tert-butyl hydroperoxide (TBHP) in CHCl3. Detailed EPR, NMR and GC–MS studies of the reaction revealed a few mechanistic details and the nature of by-products that are generated by involvement of the chloroform solvent.",
keywords = "2-2′-Bipyridine ligands, Crystal structure, Cyclooctene epoxidation, EPR spectroscopy, Oxidovanadium(IV) complexes",
author = "Fomenko, {Iakov S.} and Sandrine Vincendeau and Eric Manoury and Rinaldo Poli and Abramov, {Pavel A.} and Nadolinny, {Vladimir A.} and Sokolov, {Maxim N.} and Gushchin, {Artem L.}",
year = "2020",
month = "2",
day = "1",
doi = "10.1016/j.poly.2019.114305",
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An oxidovanadium(IV) complex with 4,4′-di-tert-butyl-2,2′-bipyridine ligand : Synthesis, structure and catalyzed cyclooctene epoxidation. / Fomenko, Iakov S.; Vincendeau, Sandrine; Manoury, Eric; Poli, Rinaldo; Abramov, Pavel A.; Nadolinny, Vladimir A.; Sokolov, Maxim N.; Gushchin, Artem L.

В: Polyhedron, Том 177, 114305, 01.02.2020.

Результат исследования: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - An oxidovanadium(IV) complex with 4,4′-di-tert-butyl-2,2′-bipyridine ligand

T2 - Synthesis, structure and catalyzed cyclooctene epoxidation

AU - Fomenko, Iakov S.

AU - Vincendeau, Sandrine

AU - Manoury, Eric

AU - Poli, Rinaldo

AU - Abramov, Pavel A.

AU - Nadolinny, Vladimir A.

AU - Sokolov, Maxim N.

AU - Gushchin, Artem L.

PY - 2020/2/1

Y1 - 2020/2/1

N2 - The interaction of vanadium(III) chloride (VCl3) with 4,4′-di-tert-butyl-2,2′-bipyridine (dbbpy) in air resulted in the monomeric oxidovanadium(IV) complex [VOCl2(dbbpy)(H2O)] (1) in high yield. The complex was characterized by IR and EPR spectroscopies, by elemental analysis, and by single crystal X-ray diffraction analysis. The vanadium atom has a distorted octahedral coordination environment. The EPR spectrum of 1 in CH2Cl2 demonstrates an eight-line signal typical of vanadium(IV) with a d1 electronic configuration. Complex 1 exhibits catalytic activity in the cyclooctene oxidation with tert-butyl hydroperoxide (TBHP) in CHCl3. Detailed EPR, NMR and GC–MS studies of the reaction revealed a few mechanistic details and the nature of by-products that are generated by involvement of the chloroform solvent.

AB - The interaction of vanadium(III) chloride (VCl3) with 4,4′-di-tert-butyl-2,2′-bipyridine (dbbpy) in air resulted in the monomeric oxidovanadium(IV) complex [VOCl2(dbbpy)(H2O)] (1) in high yield. The complex was characterized by IR and EPR spectroscopies, by elemental analysis, and by single crystal X-ray diffraction analysis. The vanadium atom has a distorted octahedral coordination environment. The EPR spectrum of 1 in CH2Cl2 demonstrates an eight-line signal typical of vanadium(IV) with a d1 electronic configuration. Complex 1 exhibits catalytic activity in the cyclooctene oxidation with tert-butyl hydroperoxide (TBHP) in CHCl3. Detailed EPR, NMR and GC–MS studies of the reaction revealed a few mechanistic details and the nature of by-products that are generated by involvement of the chloroform solvent.

KW - 2-2′-Bipyridine ligands

KW - Crystal structure

KW - Cyclooctene epoxidation

KW - EPR spectroscopy

KW - Oxidovanadium(IV) complexes

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