Zobrazeno 1 - 10
of 55
pro vyhledávání: '"K. Thimm"'
Publikováno v:
Magnetic Resonance in Chemistry. 32:624-630
Radical anions of alkyl α-oxocarbothioates and α-oxocarbodithioates are generated by in situ electroreduction. Their spin density distribution and configuration are discussed in terms of the ESR spectra and semi-empirical (McLachlan-type and AM1) M
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Autor:
G. Puester, K. Thimm
Publikováno v:
Nuclear Instruments and Methods. 152:95-100
The monochromator described here is a modified Vodar-mount with fixed exit-slit, to be preferentially used in the 5–100 A range. It has been designed for both transmission and resolution as high as possible and is entirely computer-operated, allowi
Publikováno v:
Tetrahedron. 33:259-263
Zusammenfassung Die polarographische und cyclovoltammetrische Untersuchung der Thiooxalsaureester 1–6 zeigt, dass diese reversibel zu Radikalanionen reduzierbar sind. Dementsprechend liefern sie nach in-situ-Elektroreduktion EPR-Spektren, aus denen
Publikováno v:
Polymer Bulletin. :95-101
Polymethylmethacrylate was irradiated with X-rays at absorbed dose rates between 3.8 × 103 and 7.1 × 105 J.g−1. h−1. The 100 eV-yield for main-chain scission was determined as G(S)X-ray= 0.33. It is independent of the absorbed dose rate. The di
Publikováno v:
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences. 290:327-352
New observations of the 5p spectra of Cs i and Ba i are reported. The extreme complexity of the structure does not permit precise configuration labels to be attached to all the excited levels. Nevertheless, more than 160 transitions in Ba i have been
Publikováno v:
Physics Letters A. 58:381-384
Electron spectroscopic measurements by means of polarized He I radiation are presented. Polarization better than 97% is achieved by a fourfold reflection polarizer. Asymmetry parameters β are given for Kr and C 6 H 6 .
Publikováno v:
Journal of Luminescence. :289-292
Publikováno v:
Journal of Physics B: Atomic and Molecular Physics. 12:L679-L683
Circularly polarised synchrotron radiation is used for producing spin polarised photoelectrons at xenon atoms. After a brief description of the apparatus the dependence of the electron polarisation on the photo energy is presented and compared with a
Autor:
D. Rusbüldt, K. Thimm
Publikováno v:
Nuclear Instruments and Methods. 116:125-140
At the 2.5 GeV synchrotron of the University of Bonn, a facility has been established to take advantage of the synchrotron radiation. The spectral and angular distribution of the radiation has been computed numerically using the well known formulas o