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- Dahlgren, T., et al.
(författare)
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Electronic spectra of dithieno analogues of phenanthrene
- 1979
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Ingår i: Chemical Physics. - : Elsevier BV. - 0301-0104. ; 40:3, s. 397-404
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Tidskriftsartikel (refereegranskat)abstract
- The magnetic circular dichroism (MCD) spectra of some dithieno analogues of phenanthrene: benzo [2,1-b;3,4-b′] dithiophene (I) benzo [1,2-b;4,3-b′] dithiophene (II), benzo [1,2-c;3,4-c′] dithiophene (III) and benzo [1,2-b;3,4-b′] dithiophene (IV) are reported. For I–III the spectra corresponding to two different transition moment directions could be obtained from low-temperature linear dichroism spectra. The results compare well with theoretical energies, oscillator strengths, moment directions and MCD B-terms which were obtained from semi-empirical quantum mechanical calculations in the π-electron approximation.
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4. |
- Mozer, F.S., et al.
(författare)
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Measurements of quasi-static and low-freqency electric fields with spherical double probes on the IESS-1 spacecraft
- 1978
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Ingår i: IEEE Trans Geosci Electron. - 0018-9413. ; GE-16, s. 258-261
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Tidskriftsartikel (refereegranskat)abstract
- The spherical double-probe electric-field experiment on the ISEE - 1 spacecraft is described. It is shown that the isntrument measures magnetospheric, magnetosheath, and solar wind electric fields with a sensitivity well below one mv/m. Design features and diagnostic experiments performed in orbit to understand the instrument operation are discussed.
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