The solid-state structure of K3C60(THF)14

Janiak, Christoph; Mühle, Stefan H.; Hemling, Holger; Köhler, Klaus

doi:10.1016/0277-5387(95)00482-3

Cited by 31 publications

(30 citation statements)

References 22 publications

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“…[36] The Cu atom in 3a tends to reach 18 valence electrons and interconnects two Ge 9 cages, one of which acts as sixelectron π donor, whereas the second Ge 9 cage provides a distinct lone-pair donor bond. In the case of deltahedral clusters, the latter coordination was solely reported for the ligand-stabilized octahedral anions [{EM(CO) 5 } 6 ] 2-(E = Ge, Sn; M = Cr, Mo, W) [37] with an underlying [E 6 ] 2-octahedron and for the recently described functionalized nidoGe 9 core in {Ge 9 [Si(SiMe 3 ) 3 ] 3 Cr(CO) 5 } -.…”

Section: Introductionmentioning

confidence: 91%

“…[1][2][3][4] Fullerides and Zintl anions have similar redox properties and both show electrostatic interactions with alkali metals in their salts. [5][6][7] Certainly, there are also intriguing differences. For instance, the stability of neutral species has been studied in depth for carbon fullerenes but only investigated in the gas phase for the heavier tetrel atom clusters.…”

Section: Introductionmentioning

confidence: 92%

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Varying Bonding Modes of the Zintl Ion [Ge₉]^4– in Cu^I Complexes: Syntheses and Structures of [Cu(η⁴‐Ge₉)(PR₃)]^3– (R = iPr, Cy) and [Cu(η⁴‐Ge₉)(η¹‐Ge₉)]^7–

Scharfe

Fässler

2010

Eur J Inorg Chem

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Three novel Cu‐capped Ge9 clusters were synthesized from K4Ge9 and phosphane‐stabilized copper(I) compounds CuCl(PR3) with R = isopropyl (iPr) or cyclohexyl (Cy). Reactions in N,N‐dimethylformamide (dmf) at ambient temperature resulted in the isolation of [Cu(η4‐Ge9)(PCy3)]3– as a [K([2.2]crypt)] salt ([2.2]crypt: 1,7,10,16‐tetraoxa‐4,13‐diazacyclooctadecane). From solutions of [Cu(η4‐Ge9)(PiPr3)]3– in liquid ammonia, the anion was isolated when the reaction mixture was stored at –70 °C. Under the same reaction conditions but at a temperature of –40 °C the cluster [Cu(η4‐Ge9)(η1‐Ge9)]7– crystallized in the presence of [2.2.2]crypt(4,7,13,16,21,24‐hexaoxa‐1,10‐diazabicyclo[8.8.8]hexacosan)or [2.2]crypt. The ligand‐free intermetalloid cluster [Cu(η4‐Ge9)(η1‐Ge9)]7– is a unique example in which two differently bonded Ge9 units are linked by a transition‐metal atom. This cluster complex remarkably demonstrates the ability of homoatomic polyanions to bind in different modes to the same transition‐metal atom. One Ge9 nido cluster binds to the copper atom by means of its open square face, whereas the second Ge9 nido cluster is coordinated through one lone pair as a two‐electron σ donor. The key role of the flexible electron‐donor properties of [Ge9]4– in the reaction path towards the formation of intermetalliod clusters is discussed.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 92%

Varying Bonding Modes of the Zintl Ion [Ge₉]^4– in Cu^I Complexes: Syntheses and Structures of [Cu(η⁴‐Ge₉)(PR₃)]^3– (R = iPr, Cy) and [Cu(η⁴‐Ge₉)(η¹‐Ge₉)]^7–

Scharfe

Fässler

2010

Eur J Inorg Chem

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“…550° C at a relatively low temperature in a THF solvent, liquid ammonia, CS 2 Apart from mono-intercalation, it is also possible to prepare ternary intercalates by combination with other alkali metals (Hou et al, 2004) or even intercalates which, in addition to potassium, contain also an intercalated organic component (Janiak et al, 1996) e.g. the compound K 3 C 60 (THF) 14 was prepared in a solution during preparation of potassium intercalate.…”

Section: Reaction Product Of Intercalate C 8 K and Fullerene C 60 (Fumentioning

confidence: 99%

Intercalation of Metallic Potassium and Fullerene C60 into Natural Graphite

Zemanová¹,

Klouda²,

Lach³

et al. 2014

IJMSA

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Abstract:Graphite was intercalated with potassium to produce C 8 K intercalate which was subsequently exposed to suspension of fullerene C 60 in toluene. The resulting product stabilized potassium against effects of the atmosphere. The prepared product was exposed to tests of thermal stability and other analyses, such as FT-IR, SEM and Energy-dispersive Xray Spectroscopy (EDAX) with the objective to describe arrangement of potassium in the carbon matrix. The product with stabilized potassium in a carbon skeleton (graphite -fullerite) is partly able to resist the atmosphere, it is relatively thermally stable (up to 150 o C) and the energy effects of its decomposition are low up to 600 o C. The product may be used in numerous applications -catalysis, hydrogen storage and as an admixture component in aerosol fire suppression systems.

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“…[22][23][24] So far, however, only very few compounds containing fullerene trianions have been analyzed by single-crystal X-ray determination. [22,23] Since recently the successful isolation and structure determination of the tetra-anion C 60 4-has been reported, [29] the question arises if disproportionation reactions of C 60 3-anions to C 60 4-and C 60 2-can be verified in salts of C 60 3-anions. In this context we report herein on the preparation and characterization of new C 60 fullerides containing highly charged C 60 anions, and five new discrete salts with C 60 3-anions as well as the possibility of disproportionation reactions are presented.…”

Section: Introductionmentioning

confidence: 99%

C₆₀^3– versus C₆₀^4– /C₆₀^2– – Synthesis and Characterization of Five Salts Containing Discrete Fullerene Anions

Boeddinghaus

Klein

Wahl

et al. 2014

Zeitschrift anorg allge chemie

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Abstract. Five new compounds, [Rb([18] (5) were synthesized and characterized by single-crystal X-ray structure determination. All compounds contain discrete C 60 anions, which are ordered in 1, 2, and 4, where direct cation-anion contacts occur. The unit cells of 1 and 2 contain two independent fullerides, which coordinate to the rubidium atoms either of two or of four [Rb([18]crown-6)] units. Ow-

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The solid-state structure of K3C60(THF)14

Cited by 31 publications

References 22 publications

Varying Bonding Modes of the Zintl Ion [Ge₉]^4– in Cu^I Complexes: Syntheses and Structures of [Cu(η⁴‐Ge₉)(PR₃)]^3– (R = iPr, Cy) and [Cu(η⁴‐Ge₉)(η¹‐Ge₉)]^7–

Varying Bonding Modes of the Zintl Ion [Ge₉]^4– in Cu^I Complexes: Syntheses and Structures of [Cu(η⁴‐Ge₉)(PR₃)]^3– (R = iPr, Cy) and [Cu(η⁴‐Ge₉)(η¹‐Ge₉)]^7–

Intercalation of Metallic Potassium and Fullerene C60 into Natural Graphite

C₆₀^3– versus C₆₀^4– /C₆₀^2– – Synthesis and Characterization of Five Salts Containing Discrete Fullerene Anions

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The solid-state structure of K3C60(THF)14

Cited by 31 publications

References 22 publications

Varying Bonding Modes of the Zintl Ion [Ge9]4– in CuI Complexes: Syntheses and Structures of [Cu(η4‐Ge9)(PR3)]3– (R = iPr, Cy) and [Cu(η4‐Ge9)(η1‐Ge9)]7–

Varying Bonding Modes of the Zintl Ion [Ge9]4– in CuI Complexes: Syntheses and Structures of [Cu(η4‐Ge9)(PR3)]3– (R = iPr, Cy) and [Cu(η4‐Ge9)(η1‐Ge9)]7–

Intercalation of Metallic Potassium and Fullerene C60 into Natural Graphite

C603– versus C604– /C602– – Synthesis and Characterization of Five Salts Containing Discrete Fullerene Anions

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Varying Bonding Modes of the Zintl Ion [Ge₉]^4– in Cu^I Complexes: Syntheses and Structures of [Cu(η⁴‐Ge₉)(PR₃)]^3– (R = iPr, Cy) and [Cu(η⁴‐Ge₉)(η¹‐Ge₉)]^7–

Varying Bonding Modes of the Zintl Ion [Ge₉]^4– in Cu^I Complexes: Syntheses and Structures of [Cu(η⁴‐Ge₉)(PR₃)]^3– (R = iPr, Cy) and [Cu(η⁴‐Ge₉)(η¹‐Ge₉)]^7–

C₆₀^3– versus C₆₀^4– /C₆₀^2– – Synthesis and Characterization of Five Salts Containing Discrete Fullerene Anions