Synthesis of Chlorosilicates†
Simon Steinhauer
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)
Search for more papers by this authorDr. Tobias Böttcher
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)
Search for more papers by this authorNico Schwarze
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)
Search for more papers by this authorBeate Neumann
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)
Search for more papers by this authorDr. Hans-Georg Stammler
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)
Search for more papers by this authorCorresponding Author
Prof. Dr. Berthold Hoge
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)Search for more papers by this authorSimon Steinhauer
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)
Search for more papers by this authorDr. Tobias Böttcher
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)
Search for more papers by this authorNico Schwarze
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)
Search for more papers by this authorBeate Neumann
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)
Search for more papers by this authorDr. Hans-Georg Stammler
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)
Search for more papers by this authorCorresponding Author
Prof. Dr. Berthold Hoge
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)
Universität Bielefeld, Fakultät für Chemie, Centrum für Molekulare Materialien, Universitätsstrasse 25, 33615 Bielefeld (Germany)Search for more papers by this authorMerck KGaA (Darmstadt (Germany)) is acknowledged for financial support, and Solvay GmbH (Hannover (Germany)) for providing chemicals. We thank Prof. Dr. L. Weber for helpful discussions.
Graphical Abstract
Pentacoordinate chlorosilicates are known to be reactive intermediates. They can be stabilized by the introduction of at least two electron-withdrawing C2F5 groups, which has allowed the characterization of a series of (pentafluoroethyl)chlorosilicates (see example) in solution as well as in the solid state.
Abstract
Chlorosilicates represent important intermediates in SN2 reactions of chlorosilanes. They can be stabilized by the introduction of electron-withdrawing substituents. Salts of various (pentafluoroethyl)chlorosilicates have been isolated and structurally characterized.
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, a=1054.8(1), b=1448.6(1), c=1456.2(1) pm, α=84.83(1), β=80.42(1), γ=85.99(1)°, V=2181.7(1)×106 pm3, Z=2, ρcalcd=1.641 g cm−3, F(000)=1084; 95409 reflections up to θ=26 collected, 8564 independent reflections, thereof 7945 with I>2σ(I), 622 parameters. Hydrogen atoms refined at calculated positions using a riding model, R values: R1=0.0416 for reflections with I>2σ(I), wR2=0.1185 for all data.
CCDC 1006707 and 1006708 contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.
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