First synthesis of a dihydrido functionalized double-cored oligosilane dendrimer

Clemens Krempner; S. Chtchian; H. Reinke

doi:10.1016/j.ica.2004.05.024

First synthesis of a dihydrido functionalized double-cored oligosilane dendrimer

Clemens Krempner, S. Chtchian, H. Reinke

Chemistry and Biochemistry

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12 Scopus citations

Abstract

The reaction of (R₂MeSi)₂SiHCl (2) [R=SiMe ₃] with Na-K-alloy yields the double-cored dendritic oligosilane [(R₂MeSi)₂SiH]₂ (4). The structure of 4 was obtained from X-ray diffraction data, which verify a total of 14 silicon atoms and a longest chain of six silicon atoms. The UV-Vis spectra of 4 and the structurally analogous [(R₂MeSi)₂SiMe]₂ (5) exhibit absorption maxima (shoulders) at 269 nm (ε=2.0×10 ⁴) and 276 nm (ε=2.3×10⁴), respectively, which are the longest so far observed for alkyl substituted oligosilanes with hexasilane chains.

Original language	English
Pages (from-to)	3733-3738
Number of pages	6
Journal	Inorganica Chimica Acta
Volume	357
Issue number	12
DOIs	https://doi.org/10.1016/j.ica.2004.05.024
State	Published - Sep 10 2004

Keywords

Dendrimers
Hexasilane
Oligosilanes
Silanes
σ-Conjugation

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10.1016/j.ica.2004.05.024

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title = "First synthesis of a dihydrido functionalized double-cored oligosilane dendrimer",

abstract = "The reaction of (R2MeSi)2SiHCl (2) [R=SiMe 3] with Na-K-alloy yields the double-cored dendritic oligosilane [(R2MeSi)2SiH]2 (4). The structure of 4 was obtained from X-ray diffraction data, which verify a total of 14 silicon atoms and a longest chain of six silicon atoms. The UV-Vis spectra of 4 and the structurally analogous [(R2MeSi)2SiMe]2 (5) exhibit absorption maxima (shoulders) at 269 nm (ε=2.0×10 4) and 276 nm (ε=2.3×104), respectively, which are the longest so far observed for alkyl substituted oligosilanes with hexasilane chains.",

keywords = "Dendrimers, Hexasilane, Oligosilanes, Silanes, σ-Conjugation",

author = "Clemens Krempner and S. Chtchian and H. Reinke",

note = "Funding Information: We gratefully acknowledge the support of our research by the Fonds der Chemischen Industrie and we thank Prof. Dr. H. Oehme for his generous support. ",

year = "2004",

month = sep,

day = "10",

doi = "10.1016/j.ica.2004.05.024",

language = "English",

volume = "357",

pages = "3733--3738",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

publisher = "Elsevier BV",

number = "12",

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TY - JOUR

T1 - First synthesis of a dihydrido functionalized double-cored oligosilane dendrimer

AU - Krempner, Clemens

AU - Chtchian, S.

AU - Reinke, H.

N1 - Funding Information: We gratefully acknowledge the support of our research by the Fonds der Chemischen Industrie and we thank Prof. Dr. H. Oehme for his generous support.

PY - 2004/9/10

Y1 - 2004/9/10

N2 - The reaction of (R2MeSi)2SiHCl (2) [R=SiMe 3] with Na-K-alloy yields the double-cored dendritic oligosilane [(R2MeSi)2SiH]2 (4). The structure of 4 was obtained from X-ray diffraction data, which verify a total of 14 silicon atoms and a longest chain of six silicon atoms. The UV-Vis spectra of 4 and the structurally analogous [(R2MeSi)2SiMe]2 (5) exhibit absorption maxima (shoulders) at 269 nm (ε=2.0×10 4) and 276 nm (ε=2.3×104), respectively, which are the longest so far observed for alkyl substituted oligosilanes with hexasilane chains.

AB - The reaction of (R2MeSi)2SiHCl (2) [R=SiMe 3] with Na-K-alloy yields the double-cored dendritic oligosilane [(R2MeSi)2SiH]2 (4). The structure of 4 was obtained from X-ray diffraction data, which verify a total of 14 silicon atoms and a longest chain of six silicon atoms. The UV-Vis spectra of 4 and the structurally analogous [(R2MeSi)2SiMe]2 (5) exhibit absorption maxima (shoulders) at 269 nm (ε=2.0×10 4) and 276 nm (ε=2.3×104), respectively, which are the longest so far observed for alkyl substituted oligosilanes with hexasilane chains.

KW - Dendrimers

KW - Hexasilane

KW - Oligosilanes

KW - Silanes

KW - σ-Conjugation

UR - http://www.scopus.com/inward/record.url?scp=4444337198&partnerID=8YFLogxK

U2 - 10.1016/j.ica.2004.05.024

DO - 10.1016/j.ica.2004.05.024

M3 - Article

AN - SCOPUS:4444337198

SN - 0020-1693

VL - 357

SP - 3733

EP - 3738

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

IS - 12

ER -

First synthesis of a dihydrido functionalized double-cored oligosilane dendrimer

Abstract

Keywords

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