Electron affinity of the methyl radical: Structures of CH3 and CH3-
نویسندگان
چکیده
منابع مشابه
Photoelectron Spectroscopy of the Methide Anion: Electron Affinities of (•)CH3 and (•)CD3 and Inversion Splittings of CH3(-) and CD3(-).
We report high-resolution photoelectron spectra of the simplest carbanions, CH₃⁻ and CD₃⁻. The vibrationally resolved spectra are dominated by a long progression in the umbrella mode (ν₂) of ˙CH₃ and ˙CD₃, indicating a transition from a pyramidal C(3v) anion to the planar D(3h) methyl radical. Analysis of the spectra provides electron affinities of ˙CH₃ (0.093(3) eV) and ˙CD₃ (0.082(4) eV). The...
متن کاملRotational Tunnelling in Methyl Metal Compounds X2(CH3)4
with X = As, Sb, Bi A. K u h n e n , W. Müller'Warmuth, M. Prager 3 , O. M ü n d t b , M . Re t i b , and G. Becker 6 Institut für Physikalische Chemie der Westfälischen Wilhelms-Universität, Schlossplatz 4/7, D-48149 Münster a Institut für Festkörperforschung des Forschungszentrums Jülich, D-52425 Jülich b Institut für Anorganische Chemie der Universität Stuttgart, Pfaffenwaldring 55, D-70550 ...
متن کاملThe chemisorption of H2C[Si(CH3)3]2 and Si6(CH3)12 on Si(100) surfaces
The chemisorption of bis~trimethylsilyl!methane ~BTM, CH2@Si~CH3!3#2! and dodecamethylcyclohexasilane ~DCS, Si6~CH3!12! on clean Si~100! surfaces has been studied by C 1s core-level and valence-band photoemission spectroscopy. Our model for the deposition of carbon by BTM involves decomposition into a –CH2Si~CH3!3 surface moiety for room-temperature adsorption, which further decomposes upon ann...
متن کاملthe role of task-based techniques on the acquisition of english language structures by the intermediate efl students
this study examines the effetivenss of task-based activities in helping students learn english language structures for a better communication. initially, a michigan test was administered to the two groups of 52 students majoring in english at the allameh ghotb -e- ravandi university to ensure their homogeneity. the students scores on the grammar part of this test were also regarded as their pre...
15 صفحه اولconstruction and validation of the translation teacher competency test and the scale of students’ perceptions of translation teachers
the major purpose of this study was to develop the translation teacher competency test (ttct) and examine its construct and predictive validity. the present study was conducted in two phases: a qualitative phase as well as a quantitative phase. in the first phase of the study, the author attempted to find out the major areas of competency required for an academic translation teacher. the second...
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1977
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.74.2.410