A Route to Base Coordinate Silicon Difluoride and the Silicon Trifluoride Radical

Soumen Sinhababu; Subrata Kundu; Alexander N. Paesch; Regine Herbst-Irmer; Dietmar Stalke; Israel Fernández; Gernot Frenking; A. Claudia Stückl; Brigitte Schwederski; Wolfgang Kaim; Herbert W. Roesky

doi:10.1002/chem.201705773

A Route to Base Coordinate Silicon Difluoride and the Silicon Trifluoride Radical

Soumen Sinhababu, Subrata Kundu, Alexander N. Paesch, Regine Herbst-Irmer, Dietmar Stalke, Israel Fernández, Gernot Frenking, A. Claudia Stückl, Brigitte Schwederski, Wolfgang Kaim, Herbert W. Roesky

School of Chemistry and Moleculai Engineering

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Silicon difluoride (SiF₂) is highly unstable at room temperature and condenses at this temperature rapidly to a polymeric material of unknown structure. Therefore, the isolation of a stable monomeric silicon difluoride species is a challenging task. The cyclic alkyl(amino) carbene (cAAC) coordinated silicon difluoride was isolated as (cAAC)₂SiF₂ (2), synthesized from the reduction of cAAC-SiF₄ (1) by using two equivalents of KC₈ in the presence of one equivalent of cAAC. In the solid state, compound 2 is stable at room temperature for a long time under inert conditions. The reduction of compound 1 in the presence of one equivalent KC₈ resulted in the first stable silicon trifluoride monoradical (cAAC)SiF₃ (3).

Original language	English
Pages (from-to)	1264-1268
Number of pages	5
Journal	Chemistry - A European Journal
Volume	24
Issue number	6
DOIs	https://doi.org/10.1002/chem.201705773
State	Published - 26 Jan 2018

Keywords

carbenes
radicals
silicon difluorides
silicon tetrafluorides
silicon trifluorides

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10.1002/chem.201705773

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title = "A Route to Base Coordinate Silicon Difluoride and the Silicon Trifluoride Radical",

abstract = "Silicon difluoride (SiF2) is highly unstable at room temperature and condenses at this temperature rapidly to a polymeric material of unknown structure. Therefore, the isolation of a stable monomeric silicon difluoride species is a challenging task. The cyclic alkyl(amino) carbene (cAAC) coordinated silicon difluoride was isolated as (cAAC)2SiF2 (2), synthesized from the reduction of cAAC-SiF4 (1) by using two equivalents of KC8 in the presence of one equivalent of cAAC. In the solid state, compound 2 is stable at room temperature for a long time under inert conditions. The reduction of compound 1 in the presence of one equivalent KC8 resulted in the first stable silicon trifluoride monoradical (cAAC)SiF3 (3).",

keywords = "carbenes, radicals, silicon difluorides, silicon tetrafluorides, silicon trifluorides",

author = "Soumen Sinhababu and Subrata Kundu and Paesch, {Alexander N.} and Regine Herbst-Irmer and Dietmar Stalke and Israel Fern{\'a}ndez and Gernot Frenking and St{\"u}ckl, {A. Claudia} and Brigitte Schwederski and Wolfgang Kaim and Roesky, {Herbert W.}",

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year = "2018",

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doi = "10.1002/chem.201705773",

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AU - Sinhababu, Soumen

AU - Kundu, Subrata

AU - Paesch, Alexander N.

AU - Herbst-Irmer, Regine

AU - Stalke, Dietmar

AU - Fernández, Israel

AU - Frenking, Gernot

AU - Stückl, A. Claudia

AU - Schwederski, Brigitte

AU - Kaim, Wolfgang

AU - Roesky, Herbert W.

PY - 2018/1/26

Y1 - 2018/1/26

N2 - Silicon difluoride (SiF2) is highly unstable at room temperature and condenses at this temperature rapidly to a polymeric material of unknown structure. Therefore, the isolation of a stable monomeric silicon difluoride species is a challenging task. The cyclic alkyl(amino) carbene (cAAC) coordinated silicon difluoride was isolated as (cAAC)2SiF2 (2), synthesized from the reduction of cAAC-SiF4 (1) by using two equivalents of KC8 in the presence of one equivalent of cAAC. In the solid state, compound 2 is stable at room temperature for a long time under inert conditions. The reduction of compound 1 in the presence of one equivalent KC8 resulted in the first stable silicon trifluoride monoradical (cAAC)SiF3 (3).

AB - Silicon difluoride (SiF2) is highly unstable at room temperature and condenses at this temperature rapidly to a polymeric material of unknown structure. Therefore, the isolation of a stable monomeric silicon difluoride species is a challenging task. The cyclic alkyl(amino) carbene (cAAC) coordinated silicon difluoride was isolated as (cAAC)2SiF2 (2), synthesized from the reduction of cAAC-SiF4 (1) by using two equivalents of KC8 in the presence of one equivalent of cAAC. In the solid state, compound 2 is stable at room temperature for a long time under inert conditions. The reduction of compound 1 in the presence of one equivalent KC8 resulted in the first stable silicon trifluoride monoradical (cAAC)SiF3 (3).

KW - carbenes

KW - radicals

KW - silicon difluorides

KW - silicon tetrafluorides

KW - silicon trifluorides

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U2 - 10.1002/chem.201705773

DO - 10.1002/chem.201705773

M3 - 文章

C2 - 29222870

AN - SCOPUS:85040598478

SN - 0947-6539

VL - 24

SP - 1264

EP - 1268

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 6

ER -

A Route to Base Coordinate Silicon Difluoride and the Silicon Trifluoride Radical

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Keywords

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