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Zeitschrift für Naturforschung B

A Journal of Chemical Sciences

12 Issues per year


IMPACT FACTOR 2016: 0.631

CiteScore 2017: 0.68

SCImago Journal Rank (SJR) 2017: 0.277
Source Normalized Impact per Paper (SNIP) 2017: 0.394

Online
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1865-7117
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Volume 30, Issue 7-8

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Die reversible Dimerisierung von o-Phenylendioxydimethylsilan als Modell für die Oligomerisierung ringgespannter Kieselsäureester / The Reversible Dimerisation of o-Phenylenedioxydimethylsilane – an Example for the Oligomerisation Reactions of Ring-strained Organosiliconates

Heinrich Meyer / Günter Nagorsen / Armin Weiss
Published Online: 2014-06-02 | DOI: https://doi.org/10.1515/znb-1975-7-803

The dimerisation equilibrium of o-phenylenedioxydimethylsilane (2,2-dimethyl-1,3,2-benzodioxasilole) has been established and studied by 1H NMR spectroscopy. Equilibrium constants between 36 and 130°C have been determined. The enthalpy of dimerisation (about 5 kcal/mole) was obtained from these data and was attributed mainly to ring strain in the five membered dioxasilole ring. A mechanism for the reaction has been proposed.

: o-Phenylenedioxydimethylsilane; Dimerisation; Equilibrium Constants; Dimerisation Enthalpy; 6,6,13,13-Tetramethyldibenzo(d,i)[5,7,12,14,6,13]tetraoxadisilecin

About the article

Received: 1975-03-24

Published Online: 2014-06-02

Published in Print: 1975-08-01


Citation Information: Zeitschrift für Naturforschung B, Volume 30, Issue 7-8, Pages 488–490, ISSN (Online) 1865-7117, ISSN (Print) 0932-0776, DOI: https://doi.org/10.1515/znb-1975-7-803.

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© 1946 – 2014: Verlag der Zeitschrift für Naturforschung. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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[1]
HEINRICH MEYER, GUENTER NAGORSEN, and ARMIN WEISS
Chemischer Informationsdienst, 1975, Volume 6, Number 44, Page no
[2]
Heinrich Meyer, Jochen Klein, and Armin Weiss
Journal of Organometallic Chemistry, 1979, Volume 177, Number 2, Page 323
[3]
R.Harry Cragg and Rob D. Lane
Journal of Organometallic Chemistry, 1984, Volume 270, Number 1, Page 24

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