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Gas-phase ion/molecule reactions in octafluorocyclobutane

التفاصيل البيبلوغرافية
العنوان: Gas-phase ion/molecule reactions in octafluorocyclobutane
المؤلفون: Kenzo Hiraoka, Takayuki Mizuno, Shinichi Yamabe, Kiyotoshi Takao, Tomoyuki Iino, Daisuke Eguchi
المصدر: The Journal of Chemical Physics. 116:7574-7582
بيانات النشر: AIP Publishing, 2002.
سنة النشر: 2002
مصطلحات موضوعية: General Physics and Astronomy, Halide, Ion, Octafluorocyclobutane, chemistry.chemical_compound, chemistry, Computational chemistry, Electron affinity, Mass spectrum, Proton affinity, Physical chemistry, Molecule, Physical and Theoretical Chemistry, HOMO/LUMO
الوصف: Ion/molecule reactions in octafluorocyclobutane (c-C4F8) were studied using a high-pressure mass spectrometer. The thermochemical stabilities of the cluster ions of halide ions (X−) with c-C4F8 were measured. While the F− ion forms a covalent bond with c-C4F8, the interaction between other halide ions with c-C4F8 is mainly electrostatic. Theoretical calculation revealed that the halide ions interact not with the lowest unoccupied molecular orbital but with the next lowest unoccupied molecular orbital of the c-C4F8 molecule in the most stable cluster ions X−(c-C4F8). The electron affinity of c-C4F8 was measured to be 24.2±2.3 kcal/mol (1.05±0.10 eV) by observing the equilibria for reaction of SF6−+c-C4F8=c-C4F8−+SF6. While the sound equilibrium for that reaction was established in the temperature region from ∼350 K down to the lowest temperature measured (∼150 K), that was not established in the higher temperature region above 350 K. This was attributed to the existence of an isomer for c-C4F8− whose elect...
تدمد: 1089-7690
0021-9606
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::005bddb932804b6ac1f1a8bdf8ff31df
https://doi.org/10.1063/1.1400787
رقم الأكسشن: edsair.doi...........005bddb932804b6ac1f1a8bdf8ff31df
قاعدة البيانات: OpenAIRE
الوصف
تدمد:10897690
00219606