Temperature dependence of germylene reactions with acetylene, trimethylsilane, and phenylgermane

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dc.contributor.authorAlexander, U.
dc.contributor.authorKing, K.
dc.contributor.authorLawrance, W.
dc.date.issued2000
dc.descriptionCopyright © 2000 Elsevier Science B.V. All rights reserved.
dc.description.abstractGas-phase reaction rate constants have been determined over the temperature range 295–436 K for the reactions of germylene, GeH₂, with acetylene (GeH₂ addition across a triple bond), trimethylsilane (GeH₂ insertion into a Si–H bond), and phenylgermane. The room-temperature rate constant for germylene reacting with benzene has been measured and is found to be a factor of 300 smaller than that for phenylgermane, indicating that the latter reacts by GeH₂ insertion into the Ge–H bonds. A negative temperature dependence is observed in all cases. The activation energies, obtained from weighted linear fits to the data over the experimental temperature range, are −3.5±0.3, −11.0±0.4, and −3.6±0.3 kJ mol⁻¹ for acetylene, trimethylsilane, and phenylgermane, respectively, while the respective frequency factors, log(A/cm³ molecule⁻¹ s⁻¹), are −10.5±0.1, −11.8±0.1, −10.1±0.1.
dc.description.urihttp://www.sciencedirect.com/science/journal/00092614
dc.identifier.citationChemical Physics Letters, 2000; 319(5-6):529-534
dc.identifier.doi10.1016/S0009-2614(00)00189-5
dc.identifier.issn0009-2614
dc.identifier.orcidKing, K. [0000-0003-2766-2330]
dc.identifier.urihttp://hdl.handle.net/2440/812
dc.language.isoen
dc.publisherElsevier Science BV
dc.source.urihttps://doi.org/10.1016/s0009-2614(00)00189-5
dc.titleTemperature dependence of germylene reactions with acetylene, trimethylsilane, and phenylgermane
dc.typeJournal article
pubs.publication-statusPublished

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