Silolyl Anions and Silole Dianions: Structure of [K([18]crown‐6)+]2[C4Me4Si2−]

William P. Freeman; T Don Tilley; Glenn P. A. Yap; Arnold L. Rheingold

doi:10.1002/anie.199608821

Back

Silolyl Anions and Silole Dianions: Structure of [K([18]crown‐6)+]2[C4Me4Si2−]

Article 1996 en

Abstract

1 min read

Nearly equivalent CC distances in the five-membered ring of the dianion C4Me4Si2−, which could be isolated in crystalline form as a potassium salt in the presence of [18]crown-6 (structure on the right), suggest a high degree of delocalization. In contrast, 29Si and 13C NMR spectroscopic investigations of the silolyl anions C4Me4SiR− (R  SiMe3, Si(SiMe3)C4Me4) show that delocalization in these systems is minimal.

Discussion(0)

No comments yet. Be the first to comment.

Related publications

Article1996

Silolyl‐Anionen und Silol‐Dianionen: Struktur von [K([18]krone‐6)+]2C4Me4Si2−

William P. Freeman, T Don Tilley, Glenn P. A. Yap, Arnold L. Rheingold

Article1996

Synthesis and Study of Cyclic π-Systems Containing Silicon and Germanium. The Question of Aromaticity in Cyclopentadienyl Analogues

William P. Freeman, T Don Tilley, Louise M. Liable‐Sands, Arnold L. Rheingold

Article1995

Synthesis and Structure of a Free Germacyclopentadienide Ion: [Li([12]crown‐4)2][C4Me4GeSi(SiMe3)3]

William P. Freeman, T Don Tilley, Frederick P. Arnold, Arnold L. Rheingold, P. Gantzel

Article1984

Preparation and crystal structures of two phosphorus–sulphur rings: (RPS)4and (RPS2)2(R = C6H2Me3-2,4,6)

Cornelia Lensch, In Memory: G.M. Sheldrick (1942–2025)

Journal of the Chemical Society. Dalton transactions

Article1998

Synthesis and Study of Ruthenium Silylene Complexes of the Type [(η5-C5Me5)(Me3P)2RuSiX2]+(X = Thiolate, Me, and Ph)

Steven K. Grumbine, Gregory P. Mitchell, Daniel A. Straus, T Don Tilley, Arnold L. Rheingold

Silolyl Anions and Silole Dianions: Structure of [K([18]crown‐6)<sup>+</sup>]<sub>2</sub>[C<sub>4</sub>Me<sub>4</sub>Si<sup>2−</sup>]

Abstract

Discussion(0)

Related publications

Silolyl‐Anionen und Silol‐Dianionen: Struktur von [K([18]krone‐6)<sup>+</sup>]<sub>2</sub>C<sub>4</sub>Me<sub>4</sub>Si<sup>2−</sup>

Synthesis and Study of Cyclic π-Systems Containing Silicon and Germanium. The Question of Aromaticity in Cyclopentadienyl Analogues

Synthesis and Structure of a Free Germacyclopentadienide Ion: [Li([12]crown‐4)<sub>2</sub>][C<sub>4</sub>Me<sub>4</sub>GeSi(SiMe<sub>3</sub>)<sub>3</sub>]

Preparation and crystal structures of two phosphorus–sulphur rings: (RPS)<sub>4</sub>and (RPS<sub>2</sub>)<sub>2</sub>(R = C<sub>6</sub>H<sub>2</sub>Me<sub>3</sub>-2,4,6)

Synthesis and Study of Ruthenium Silylene Complexes of the Type [(η<sup>5</sup>-C<sub>5</sub>Me<sub>5</sub>)(Me<sub>3</sub>P)<sub>2</sub>RuSiX<sub>2</sub>]<sup>+</sup>(X = Thiolate, Me, and Ph)