Organometallchemie

Elschenbroich, Christoph; Salzer, Albrecht

doi:10.1007/978-3-322-96804-3

Cited by 133 publications

(104 citation statements)

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“…The iron-ring centroid distance is 1.65 ~ for both compounds, which is almost identical to the values observed for ferrocene and decamethyl ferrocene (1.66 ~) [8].…”

supporting

confidence: 79%

“…6,6,8,ferrocenophane 2 was obtained from the di(alkoxysilyl) ferrocene (H4CsSiMe2OR)2Fe (R = CH2CH2OCH2CH2OCH2CHEOMe ) by hydrolysis and subsequent intramolecular disiloxane formation. 2,2',3,Y,4,4',5,5',6,6,8,ferrocenophane 3 was formed by air oxidation of 2,2'3,3 ',4,4',5,5',6,6,7,7-dodecamethyl-6,7-disila[2]ferrocenophane. The crystal structures of both compounds were determined by single-crystal X-ray diffraction (2: a=8.5330 (10) Keywords.…”

mentioning

confidence: 99%

“…6,6,8,-ferrocenophan 2 entsteht aus dem Di(alkoxysilyl)ferrocen (H4CsSiMe2OR)2Fe ( R = C H 2 C H 2 O C H 2 C H 2 O C H 2 C H 2 O M e ) durch Hydrolyse und anschlieBende intramolekulare 2',3,Y,4,4',5,5',6,6,8,]ferrocenophan 3 wurde durch Luftoxidation yon 2,2 ',3,3',4,4',5,5',6,6,7, …”

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[3]Ferrocenophanes with a tetramethyldisiloxane bridge: Synthesis and molecular structure

et al. 1994

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Summary. 6,6,8,ferrocenophane 2 was obtained from the di(alkoxysilyl) ferrocene (H4CsSiMe2OR)2Fe (R = CH2CH2OCH2CH2OCH2CHEOMe ) by hydrolysis and subsequent intramolecular disiloxane formation. 2,2',3,Y,4,4',5,5',6,6,8,ferrocenophane 3 was formed by air oxidation of 2,2'3,3 ',4,4',5,5',6,6,7,7-dodecamethyl-6,7-disila[2]ferrocenophane. The crystal structures of both compounds were determined by single-crystal X-ray diffraction (2: a=8.5330 (10) Keywords. Ferrocenophane; Disiloxane unit.[3]Ferrocenophane mit Tetramethyldisiloxan-Br0cke: Synthese und Molekiilstruktur Zusammenfassung. 6,6,8,-ferrocenophan 2 entsteht aus dem Di(alkoxysilyl)ferrocen (H4CsSiMe2OR)2Fe ( R = C H 2 C H 2 O C H 2 C H 2 O C H 2 C H 2 O M e ) durch Hydrolyse und anschlieBende intramolekulare 2',3,Y,4,4',5,5',6,6,8,]ferrocenophan 3 wurde durch Luftoxidation yon 2,2 ',3,3',4,4',5,5',6,6,7,

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“…The iron-ring centroid distance is 1.65 ~ for both compounds, which is almost identical to the values observed for ferrocene and decamethyl ferrocene (1.66 ~) [8].…”

supporting

confidence: 79%

mentioning

confidence: 99%

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[3]Ferrocenophanes with a tetramethyldisiloxane bridge: Synthesis and molecular structure

et al. 1994

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“…21 The on-top bonding of Co atoms on the phenyl rings of the organic ligands has been observed for deposition temperatures up to 250 K and can be rationalized by the formation of half-sandwich-type complexes. 22 It is difficult to precisely determine the binding energy of a Co atom on a phenyl ring adsorbed onto Ag͑111͒ in order to compare it with the one of Co on a Ag͑111͒ terrace. The following estimate shows, however, that they are very close.…”

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confidence: 99%

Using metal-organic templates to steer the growth of Fe and Co nanoclusters

Decker

Schlickum

Klappenberger

et al. 2008

Applied Physics Letters

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Regularly sized Fe and Co nanostructures are created using two-dimensional metal-organic honeycomb lattices as templates. They consist of dicarbonitrile-polyphenyl molecules coordinated to Co centers on Ag(111). Subsequently deposited Fe or Co atoms nucleate clusters at specific sites on top of the metal-organic lattices while leaving their hexagonal pores empty. Choosing the deposition temperature, one can selectively decorate the molecules (120K) or the Co coordination nodes (190K) with Fe. The distance between the Fe and Co clusters and their shape can be adjusted through the lattice constant of the template by varying the number of phenyl rings in the molecules.

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“…These orbitals have large Sn-p x contributions and comparatively small contributions from the relevant d [(CO) 5 M] groups. [15] The RϪO groups should bear δ Ϫ charges by simple electronegativity arguments. orbitals.…”

Section: Or Of Hydrogen [H] With All Three Of Ure 4)mentioning

confidence: 99%

The 1,3-Sn2O2-Heterocycle as a Ligand in Organometallic Compounds – Dimerization of the Inidene Species [{(CO)5M}2SnOR]– (M = Cr, W)

Kircher

Hüttner²,

Heinze

et al. 1998

Eur. J. Inorg. Chem.

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Dimerized inidene complexes [(CO)5M−Sn(OR)−M(CO)5]22– (M = Cr, W; R = Et, iPr), 1, are obtained from [{(CO)5M}2SnCl2]2– by different routes. Dimerization occurs via alkoxy‐donor tin‐acceptor bonding by which a planar Sn2O2 ring is formed. The Sn–{M(CO)5} bonds are made in a plane vertical to this ring such that, with the R–O groups being almost coplanar with the Sn2O2 ring, the overall geometry of the compounds shows idealized D2h symmetry. – The 119Sn‐NMR resonances of 1 are found at rather low fields (M = Cr: δ ≈ 1400; M = W: δ ≈ 1170) indicating a low‐lying tin‐centered orbital in the LUMO range. Correspondingly EHT analyses show that the 3‐center‐4π system, which characterizes monomeric inidene species [LnM−E(X)−MLn]n, is still prevalent in the dimeric species 1. The low‐lying π*‐type LUMOs of 1 are the rationale for the observed 119Sn‐NMR low‐field shifts of 1. The dimeric compounds 1 react with 2,4‐pentanedione to form chelate compounds of the same type as those characteristically obtained from monomeric inidene complexes: [{(CO)5Cr}2SnOEt]22– (1a) reacts to give [{(CO)5Cr}2Sn(acac)]– (2). The experimental results are verified by X‐ray analyses in addition to the usual spectroscopic and analytical investigations.

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Organometallchemie

Cited by 133 publications

References 0 publications

[3]Ferrocenophanes with a tetramethyldisiloxane bridge: Synthesis and molecular structure

[3]Ferrocenophanes with a tetramethyldisiloxane bridge: Synthesis and molecular structure

Using metal-organic templates to steer the growth of Fe and Co nanoclusters

The 1,3-Sn2O2-Heterocycle as a Ligand in Organometallic Compounds – Dimerization of the Inidene Species [{(CO)5M}2SnOR]– (M = Cr, W)

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