Addition von metallorganischen Nucleophilen an koordinierte 1,3‐Diene, Trimethylenmethan und Cycloheptatrienyl: Heterobimetallische Carbonyl‐Molybdän‐Rhenium‐Komplexe mit σ,π‐C<sub>4</sub>‐ und ‐C<sub>7</sub>‐Kohlenwasserstoffbrücken

Müller, Hans‐Joachim; Nagel, Ulrich; Steimann, Manfred; Polborn, Kurt; Beck, Wolfgang

doi:10.1002/cber.19891220802

Cited by 24 publications

(1 citation statement)

References 55 publications

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“…8 The cyclohepta-1,3,5-triene-2-yl ring is indeed co-ordinated in a µ-η 1 : η 6 fashion, which represents a new bonding type for the bridging of two metal centers by the cycloheptatrienyl ligand. 16 Related complexes incorporating µ-η 1 : η 6 -C 7 H 7 rings have been obtained by Beck and co-workers 17 , respectively. The carbene carbon resonance (δ 159.1, CD 3 CN) is observed at much higher field than for the corresponding monometallic complex [FeCp(CO) 2 (η 1 -C 7 H 6 )] ϩ [δ 242.3, (CD 3 ) 2 CO] due to co-ordination of the Cr(CO) 3 unit to the µ-η 1 : η 7 -cycloheptatrienylidene ligand (see below).…”

Section: Resultsmentioning

confidence: 97%

Heterobimetallic carbene and allenylidene complexes; syntheses and crystal structures of iron(II)–chromium(>0>) cycloheptatrienylidene and (cycloheptatrienylidene)ethenylidene complexes †

Tamm¹,

Grzegorzewski²,

Brüdgam³

et al. 1998

J. Chem. Soc., Dalton Trans.

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Section: Resultsmentioning

confidence: 97%

Heterobimetallic carbene and allenylidene complexes; syntheses and crystal structures of iron(II)–chromium(>0>) cycloheptatrienylidene and (cycloheptatrienylidene)ethenylidene complexes †

Tamm¹,

Grzegorzewski²,

Brüdgam³

et al. 1998

J. Chem. Soc., Dalton Trans.

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Methoden zur Synthese von (μ‐Kohlenwasserstoff)‐Übergangsmetallkomplexen ohne Metall‐Metall‐Bindung

Beck¹,

Niemer²,

Wieser³

1993

Angewandte Chemie

113

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Professor Heinrich Nijth zum 65. Gehurtsfag gewidmetUbergangsmetallkomplexe rnit Kohlenwasserstoffen als o,o-, o,z-oder n,n-gebundene Brukkenliganden sind zur Zeit von grol3em Interesse. In diesem Aufsatz werden effiziente und gezielte Synthesen fur diese Verbindungen, die haufig asthetische Strukturen aufweisen, vorgestellt. Bei diesen Reaktionen begegnen wir den wichtigsten Reaktionstypen in der modernen metallorganischen Chemie. Sie konnen eine nutzliche Hilfe zur Synthese maRgeschneiderter Verbindungen, 2.B. von Modellkomplexen fur katalytische Prozesse, sein, insbesondere auch zum gezielten Aufbau von Heterometallverbindungen. Reaktionen von elektrophilen mit nucleophilen Komplexen, zahlreiche Umsetzungen von (funktionalisierten) Kohlenwasserstoffen rnit Metallkomplexen, die zur Zeit besonders aktuellen Komplexe rnit Acetylid-und Carbidobrucken sowie metallorganische Polymere, von denen man vorteilhafte Materialeigenschaften erwarten kann, werden behandelt. Die Bedeutung dieser Komplexe hat Chisholm['l wie folgt formuliert : ,,Central to the development of polynuclear and cluster chemistry are bridging ligands and central to organometallic chemistry are metal-carbon bonds. Thus, bridging hydrocarbyl ligands hold a pivotal position in the development of dinuclear and polynuclear organometallic chemistry".

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Methods for the Synthesis of μ‐Hydrocarbon Transition Metal Complexes without Metal–Metal Bonds

Beck¹,

Niemer²,

Wieser³

1993

Angew. Chem. Int. Ed. Engl.

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310

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Transition metal complexes in which hydrocarbons serve as o,o-, o,n-, or K,n-bound bridging ligands are currently of great interest. This review presents efficient and directed syntheses for such compounds, which often have very aesthetic structures. These reactions are among the most important reaction types in modern organometallic chemistry. They can be a useful aid for the synthesis of tailor-made compounds, for example, for models of catalytic processes and, specifically, for the construction of heterometallic compounds. We will discuss reactions of electrophilic complexes with nucleophilic ones, numerous transformations of (functionalized) hydrocarbons with metal complexes, the currently very topical complexes with bridging acetylide and carbide ligands, and organometallic polymers, which can be expected to have interesting and novel materials properties. Chisholm"] has described the importance of these complexes as follows: "Central to the development of polynuclear and cluster chemistry are bridging kgands and central to organometallic chemistry are metal-carbon bonds. Thus bridging ligands hold a pivotal role in the development of dinuclear and polynuclear organometallic chemistry".

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Addition von metallorganischen Nucleophilen an koordinierte 1,3‐Diene, Trimethylenmethan und Cycloheptatrienyl: Heterobimetallische Carbonyl‐Molybdän‐Rhenium‐Komplexe mit σ,π‐C₄‐ und ‐C₇‐Kohlenwasserstoffbrücken

Cited by 24 publications

References 55 publications

Heterobimetallic carbene and allenylidene complexes; syntheses and crystal structures of iron(II)–chromium(>0>) cycloheptatrienylidene and (cycloheptatrienylidene)ethenylidene complexes †

Heterobimetallic carbene and allenylidene complexes; syntheses and crystal structures of iron(II)–chromium(>0>) cycloheptatrienylidene and (cycloheptatrienylidene)ethenylidene complexes †

Methoden zur Synthese von (μ‐Kohlenwasserstoff)‐Übergangsmetallkomplexen ohne Metall‐Metall‐Bindung

Methods for the Synthesis of μ‐Hydrocarbon Transition Metal Complexes without Metal–Metal Bonds

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Addition von metallorganischen Nucleophilen an koordinierte 1,3‐Diene, Trimethylenmethan und Cycloheptatrienyl: Heterobimetallische Carbonyl‐Molybdän‐Rhenium‐Komplexe mit σ,π‐C4‐ und ‐C7‐Kohlenwasserstoffbrücken

Cited by 24 publications

References 55 publications

Heterobimetallic carbene and allenylidene complexes; syntheses and crystal structures of iron(II)–chromium(>0>) cycloheptatrienylidene and (cycloheptatrienylidene)ethenylidene complexes †

Heterobimetallic carbene and allenylidene complexes; syntheses and crystal structures of iron(II)–chromium(>0>) cycloheptatrienylidene and (cycloheptatrienylidene)ethenylidene complexes †

Methoden zur Synthese von (μ‐Kohlenwasserstoff)‐Übergangsmetallkomplexen ohne Metall‐Metall‐Bindung

Methods for the Synthesis of μ‐Hydrocarbon Transition Metal Complexes without Metal–Metal Bonds

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Product

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Addition von metallorganischen Nucleophilen an koordinierte 1,3‐Diene, Trimethylenmethan und Cycloheptatrienyl: Heterobimetallische Carbonyl‐Molybdän‐Rhenium‐Komplexe mit σ,π‐C₄‐ und ‐C₇‐Kohlenwasserstoffbrücken