Infrared spectrum of the Si3H8+ cation: evidence for a bridged isomer with an asymmetric three-center two-electron Si-H-Si bond.


The IR spectrum of Si3H8(+) ions produced in a supersonic plasma molecular beam expansion of SiH4, He, and Ar is inferred from photodissociation of cold Si3H8(+)-Ar complexes. Vibrational analysis of the spectrum is consistent with a Si3H8(+) structure (2(+)) obtained by a barrierless addition reaction of SiH4 to the disilene ion (H2Si=SiH2(+)) in the… (More)
DOI: 10.1002/chem.201302189


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