Observation of a H-agostic bond in a highly active rhenium-alkylidene olefin metathesis heterogeneous catalyst by two-dimensional solid-state NMR spectroscopy

Anne Lesage; Lyndon Emsley; Mathieu Chabanas; Christophe Copéret; Jean Marie Basset

doi:10.1002/1521-3773(20021202)41:23<4535::AID-ANIE4535>3.0.CO;2-O

Observation of a H-agostic bond in a highly active rhenium-alkylidene olefin metathesis heterogeneous catalyst by two-dimensional solid-state NMR spectroscopy

Anne Lesage, Lyndon Emsley^*, Mathieu Chabanas, Christophe Copéret, Jean Marie Basset

^*Corresponding author for this work

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

73 Scopus citations

Abstract

Carbenic J_C.H coupling as an indicator of agostic interactions in surface species: In the highly active heterogeneous catalyst for olefin metathesis 1, this coupling constant is 109 Hz for the syn and 159 Hz for the anti rotamer. From this, a H-agostic interaction in the syn rotamer can be deduced and the high electrophilicity of the Re center can be rationalized.

Original language	English (US)
Pages (from-to)	4535-4538
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	41
Issue number	23
DOIs	https://doi.org/10.1002/1521-3773(20021202)41:23<4535::AID-ANIE4535>3.0.CO;2-O
State	Published - Dec 2 2002
Externally published	Yes

Keywords

Agostic interactions
Heterogeneous catalysis
NMR spectroscopy
Rhenium

ASJC Scopus subject areas

Catalysis
General Chemistry

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10.1002/1521-3773(20021202)41:23<4535::AID-ANIE4535>3.0.CO;2-O

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Lesage, A., Emsley, L., Chabanas, M., Copéret, C., & Basset, J. M. (2002). Observation of a H-agostic bond in a highly active rhenium-alkylidene olefin metathesis heterogeneous catalyst by two-dimensional solid-state NMR spectroscopy. Angewandte Chemie - International Edition, 41(23), 4535-4538. https://doi.org/10.1002/1521-3773(20021202)41:23<4535::AID-ANIE4535>3.0.CO;2-O

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abstract = "Carbenic JC.H coupling as an indicator of agostic interactions in surface species: In the highly active heterogeneous catalyst for olefin metathesis 1, this coupling constant is 109 Hz for the syn and 159 Hz for the anti rotamer. From this, a H-agostic interaction in the syn rotamer can be deduced and the high electrophilicity of the Re center can be rationalized.",

keywords = "Agostic interactions, Heterogeneous catalysis, NMR spectroscopy, Rhenium",

author = "Anne Lesage and Lyndon Emsley and Mathieu Chabanas and Christophe Cop{\'e}ret and Basset, {Jean Marie}",

year = "2002",

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doi = "10.1002/1521-3773(20021202)41:23<4535::AID-ANIE4535>3.0.CO;2-O",

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Lesage, A, Emsley, L, Chabanas, M, Copéret, C & Basset, JM 2002, 'Observation of a H-agostic bond in a highly active rhenium-alkylidene olefin metathesis heterogeneous catalyst by two-dimensional solid-state NMR spectroscopy', Angewandte Chemie - International Edition, vol. 41, no. 23, pp. 4535-4538. https://doi.org/10.1002/1521-3773(20021202)41:23<4535::AID-ANIE4535>3.0.CO;2-O

Observation of a H-agostic bond in a highly active rhenium-alkylidene olefin metathesis heterogeneous catalyst by two-dimensional solid-state NMR spectroscopy. / Lesage, Anne; Emsley, Lyndon; Chabanas, Mathieu et al.
In: Angewandte Chemie - International Edition, Vol. 41, No. 23, 02.12.2002, p. 4535-4538.

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

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T1 - Observation of a H-agostic bond in a highly active rhenium-alkylidene olefin metathesis heterogeneous catalyst by two-dimensional solid-state NMR spectroscopy

AU - Lesage, Anne

AU - Emsley, Lyndon

AU - Chabanas, Mathieu

AU - Copéret, Christophe

AU - Basset, Jean Marie

PY - 2002/12/2

Y1 - 2002/12/2

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AB - Carbenic JC.H coupling as an indicator of agostic interactions in surface species: In the highly active heterogeneous catalyst for olefin metathesis 1, this coupling constant is 109 Hz for the syn and 159 Hz for the anti rotamer. From this, a H-agostic interaction in the syn rotamer can be deduced and the high electrophilicity of the Re center can be rationalized.

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KW - NMR spectroscopy

KW - Rhenium

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Observation of a H-agostic bond in a highly active rhenium-alkylidene olefin metathesis heterogeneous catalyst by two-dimensional solid-state NMR spectroscopy

Abstract

Keywords

ASJC Scopus subject areas

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