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Dipl.-Phys. Marco Savoca, Dr. Judith Langer and Prof. Dr. Otto Dopfer IR Spectrum and Structure of a Protonated Disilane: Probing the Si[BOND]H[BOND]Si Proton Bridge Angewandte Chemie International Edition 52

Version of Record online: 20 DEC 2012 | DOI: 10.1002/anie.201208958

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Structure elucidation: The IR spectrum of the protonated disilane Si2H7+ has been derived by resonant IR photodissociation spectroscopy of weakly bound Si2H7+⋅Ne clusters (see picture). Analysis of the spectra provides the first characterization of this fundamental polysilane cation and direct evidence for the nonlinear Si[BOND]H[BOND]Si proton bridge with a three-center two-electron bond.

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