Well-defined surface tungstenocarbyne complexes through the reaction of [W(≡CtBu)(CH2tBu)3] with silica

Erwan Le Roux; Mostafa Taoufik; Mathieu Chabanas; Damien Alcor; Anne Baudouin; Christophe Copéret; Jean Thivolle-Cazat; Jean Marie Basset; Anne Lesage; Sabine Hediger; Lyndon Emsley

doi:10.1021/om050086a

Well-defined surface tungstenocarbyne complexes through the reaction of [W(≡CtBu)(CH₂tBu)₃] with silica

Erwan Le Roux, Mostafa Taoufik, Mathieu Chabanas, Damien Alcor, Anne Baudouin, Christophe Copéret, Jean Thivolle-Cazat, Jean Marie Basset^*, Anne Lesage, Sabine Hediger, Lyndon Emsley

^*Corresponding author for this work

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

76 Scopus citations

Abstract

The molecular complex [W(≡CtBu)(CH₂tBu)₃], 1, reacts with SiO_2-(700) to give as major species 2a, [(≡SiO)W(≡CtBu)(CH₂tBu)₂], while a bisgrafted surface species 3a, [(≡SiO)₂W (≡CtBu)(CH ₂tBu)], is obtained on SiO_2-(200). As in molecular organometallic chemistry, the alkylalkylidyne tautomeric form is favored. Despite these structural features, these surface organometallic complexes are very active olefin metathesis catalysts, as reported earlier, and it is very likely that the necessary metallocarbene intermediates are generated under the reaction conditions.

Original language	English (US)
Pages (from-to)	4274-4279
Number of pages	6
Journal	Organometallics
Volume	24
Issue number	17
DOIs	https://doi.org/10.1021/om050086a
State	Published - Aug 15 2005
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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title = "Well-defined surface tungstenocarbyne complexes through the reaction of [W(≡CtBu)(CH2tBu)3] with silica",

abstract = "The molecular complex [W(≡CtBu)(CH2tBu)3], 1, reacts with SiO2-(700) to give as major species 2a, [(≡SiO)W(≡CtBu)(CH2tBu)2], while a bisgrafted surface species 3a, [(≡SiO)2W (≡CtBu)(CH 2tBu)], is obtained on SiO2-(200). As in molecular organometallic chemistry, the alkylalkylidyne tautomeric form is favored. Despite these structural features, these surface organometallic complexes are very active olefin metathesis catalysts, as reported earlier, and it is very likely that the necessary metallocarbene intermediates are generated under the reaction conditions.",

author = "Roux, {Erwan Le} and Mostafa Taoufik and Mathieu Chabanas and Damien Alcor and Anne Baudouin and Christophe Cop{\'e}ret and Jean Thivolle-Cazat and Basset, {Jean Marie} and Anne Lesage and Sabine Hediger and Lyndon Emsley",

year = "2005",

month = aug,

day = "15",

doi = "10.1021/om050086a",

language = "English (US)",

volume = "24",

pages = "4274--4279",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

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}

TY - JOUR

T1 - Well-defined surface tungstenocarbyne complexes through the reaction of [W(≡CtBu)(CH2tBu)3] with silica

AU - Roux, Erwan Le

AU - Taoufik, Mostafa

AU - Chabanas, Mathieu

AU - Alcor, Damien

AU - Baudouin, Anne

AU - Copéret, Christophe

AU - Thivolle-Cazat, Jean

AU - Basset, Jean Marie

AU - Lesage, Anne

AU - Hediger, Sabine

AU - Emsley, Lyndon

PY - 2005/8/15

Y1 - 2005/8/15

N2 - The molecular complex [W(≡CtBu)(CH2tBu)3], 1, reacts with SiO2-(700) to give as major species 2a, [(≡SiO)W(≡CtBu)(CH2tBu)2], while a bisgrafted surface species 3a, [(≡SiO)2W (≡CtBu)(CH 2tBu)], is obtained on SiO2-(200). As in molecular organometallic chemistry, the alkylalkylidyne tautomeric form is favored. Despite these structural features, these surface organometallic complexes are very active olefin metathesis catalysts, as reported earlier, and it is very likely that the necessary metallocarbene intermediates are generated under the reaction conditions.

AB - The molecular complex [W(≡CtBu)(CH2tBu)3], 1, reacts with SiO2-(700) to give as major species 2a, [(≡SiO)W(≡CtBu)(CH2tBu)2], while a bisgrafted surface species 3a, [(≡SiO)2W (≡CtBu)(CH 2tBu)], is obtained on SiO2-(200). As in molecular organometallic chemistry, the alkylalkylidyne tautomeric form is favored. Despite these structural features, these surface organometallic complexes are very active olefin metathesis catalysts, as reported earlier, and it is very likely that the necessary metallocarbene intermediates are generated under the reaction conditions.

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U2 - 10.1021/om050086a

DO - 10.1021/om050086a

M3 - Article

AN - SCOPUS:23844486752

SN - 0276-7333

VL - 24

SP - 4274

EP - 4279

JO - Organometallics

JF - Organometallics

IS - 17

ER -

Well-defined surface tungstenocarbyne complexes through the reaction of [W(≡CtBu)(CH₂tBu)₃] with silica

Abstract

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