Crystal structure of trans-[W(CO)4(η2-C2H4)2] and IR and 1H NMR studies of the reactions of this and related ethene carbonyl complexes of tungsten(0), [W(CO)n(η2-C2H4)6- n] ( n=3–5)

Szymańska-Buzar, Teresa; Kern, Krystyna; Downs, Anthony J.; Greene, Tim M.; Morris, Leigh J.; Parsons, Simon

doi:10.1039/a808621d

“…Thus, saturation of an orange n-heptane solution of [(l-GeCl 2 ){W(CO) 5 } 2 ] compound with ethene leads to precipitation of light yellow amorphous solid of [(lGeCl 2 ) 2 {W(CO) 5 } 2 ] and to the formation of a pale yellow solution of [W(CO) 5 (g 2 -C 2 H 4 )] (1). The identity of 1 has been confirmed by its characteristic IR spectrum [8][9][10] and by X-ray analysis. The pale yellow crystals of 1, suitable for X-ray diffraction studies, were grown during sublimation process carried out in vacuum at room temperature [18].…”

mentioning

confidence: 62%

“…Separation of trans-bis(olefin) compounds was achieved due to their high stability. In a slowly evaporated alkane solution, the pentacarbonyl compound decomposes, leaving a stable enough trans-bis(olefin) species [4,7,8]. Only in a few cases has it been possible to isolate and fully characterize the pentacarbonylolefin complexes [4,7,[14][15][16].…”

mentioning

confidence: 98%

“…As the result, the olefin ligand can be then easily transformed in catalytic reaction. All group 6 metal carbonyls have been shown to undergo reactions with olefin either by thermal substitution of ligands such as tetrahydrofuran, acetone, or acetonitrile [5] or, recently more frequently, by photochemical substitution of carbonyl ligands in hexacarbonyls [4,[6][7][8].…”

mentioning

confidence: 99%

“…Over the years, a number of group 6 metal carbonyl complexes containing olefin ligands have been reported, including ethene-carbonyl complexes of tungsten, having from one to three g 2 -ethene ligands [6,8,10].…”

mentioning

confidence: 99%

“…Photolysis of an alkane solution of M(CO) 6 (M = Cr, M, W) and olefin leads first to the formation of a thermally labile [M(CO) 5 (g 2 -olefin)] complex and after further irradiation to a much more stable trans-[M(CO) 4 (g 2 -olefin) 2 ] complex [4,[6][7][8][9][10]. Even prolonged irradiation of M(CO) 6 in the presence of olefin gives a mixture of penta-and tetra-carbonyl compounds.…”

mentioning

confidence: 99%

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A new synthetic route to pentacarbonylalkene complexes of tungsten(0): X-ray crystal structure of [W(CO)5(η2-C2H4)]

Górski

¹

,

Kochel

²

,

Szymańska-Buzar

³

2006

Inorganic Chemistry Communications

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Tungsten: Organometallic ChemistryBased in part on the article Tungsten: Organometallic Chemistry by Andreas Mayr which appeared in theEncyclopedia of Inorganic Chemistry, First Edition.

Pamplin

¹

,

Hayton

²

,

Legzdins

³

2005

Encyclopedia of Inorganic Chemistry

1

0

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This article surveys the organometallic chemistry of tungsten in a systematic manner according to the various types of complexes known to contain tungsten–carbon bonds. The first section deals with complexes having the inorganic ligands CO (carbonyl), CNR (isocyanide), and CN (cyanide) in the metal's coordination sphere. The second and by far the largest section considers tungsten complexes containing organic ligands. This section is divided into subsections dealing with compounds having η 1 ‐hydrocarbyl ligands (i.e. alkyl and aryl complexes, vinyl and alkynyl complexes, carbene complexes, and carbyne complexes), η 2 ‐hydrocarbon ligands (i.e. alkene complexes and alkyne complexes), η 3 ‐hydrocarbon ligands (i.e. allyl complexes), η 4 ‐hydrocarbon ligands (i.e. diene complexes), η 5 ‐hydrocarbon ligands (i.e. cyclopentadienyl complexes), and η 6 ‐hydrocarbon ligands (i.e. arene complexes). Within each category of complex, the material is generally presented in the following order: common methods of synthesis of these complexes, their characteristic physical properties, and their representative chemical properties. The latter are usually illustrated by examples taken from the literature published since 1992, the final year of coverage by the first edition of the Encyclopedia of Inorganic Chemistry. Other articles in the current encyclopedia also cover some aspects of this chemistry, most notably, alkene and alkyne metathesis reactions mediated by organotungsten complexes, the organometallic chemistry of di‐ and polynuclear tungsten complexes, and tungsten compounds containing main group element ligands. Consequently, these topics are not specifically discussed in this article.

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Tungsten: Organometallic ChemistryBased in part on the article Tungsten: Organometallic Chemistry by Andreas Mayr which appeared in theEncyclopedia of Inorganic Chemistry, First Edition.

Pamplin

¹

,

Hayton

²

,

Legzdins

³

2005

Encyclopedia of Inorganic and Bioinorganic Chemistry

0

View full text Add to dashboard Cite

This article surveys the organometallic chemistry of tungsten in a systematic manner according to the various types of complexes known to contain tungsten–carbon bonds. The first section deals with complexes having the inorganic ligands CO (carbonyl), CNR (isocyanide), and CN (cyanide) in the metal's coordination sphere. The second and by far the largest section considers tungsten complexes containing organic ligands. This section is divided into subsections dealing with compounds having η 1 ‐hydrocarbyl ligands (i.e. alkyl and aryl complexes, vinyl and alkynyl complexes, carbene complexes, and carbyne complexes), η 2 ‐hydrocarbon ligands (i.e. alkene complexes and alkyne complexes), η 3 ‐hydrocarbon ligands (i.e. allyl complexes), η 4 ‐hydrocarbon ligands (i.e. diene complexes), η 5 ‐hydrocarbon ligands (i.e. cyclopentadienyl complexes), and η 6 ‐hydrocarbon ligands (i.e. arene complexes). Within each category of complex, the material is generally presented in the following order: common methods of synthesis of these complexes, their characteristic physical properties, and their representative chemical properties. The latter are usually illustrated by examples taken from the literature published since 1992, the final year of coverage by the first edition of the Encyclopedia of Inorganic Chemistry. Other articles in the current encyclopedia also cover some aspects of this chemistry, most notably, alkene and alkyne metathesis reactions mediated by organotungsten complexes, the organometallic chemistry of di‐ and polynuclear tungsten complexes, and tungsten compounds containing main group element ligands. Consequently, these topics are not specifically discussed in this article.

show abstract

Crystal structure of trans-[W(CO)4(η2-C2H4)2] and IR and 1H NMR studies of the reactions of this and related ethene carbonyl complexes of tungsten(0), [W(CO)n(η2-C2H4)6- n] ( n=3–5)

Cited by 27 publications

References 26 publications

A new synthetic route to pentacarbonylalkene complexes of tungsten(0): X-ray crystal structure of [W(CO)5(η2-C2H4)]

A new synthetic route to pentacarbonylalkene complexes of tungsten(0): X-ray crystal structure of [W(CO)5(η2-C2H4)]

Tungsten: Organometallic ChemistryBased in part on the article Tungsten: Organometallic Chemistry by Andreas Mayr which appeared in theEncyclopedia of Inorganic Chemistry, First Edition.

Tungsten: Organometallic ChemistryBased in part on the article Tungsten: Organometallic Chemistry by Andreas Mayr which appeared in theEncyclopedia of Inorganic Chemistry, First Edition.

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