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Level Crossing Investigation of the Hyperfine Structure of Bi209 in the 6p^(2)(^(3)P_(0)) 6d^(2)D_(3/2) and 6p^(2)(^(3)P_(1)) 7s^(4)P_(3/2) Levels of the Bi I Spectrum

The level crossing method was used to measure the hyperfine structure of Bi 209 in the 6 p 2 ( 3 P 0 )6 d 2 D 3/2 and 6 p 2 ( 3 P 1 )7 s 4 P 3/2 levels of the Bi I spectrum. For the magnetic dipole and the electric quadrupole interaction constants a and b the following values were obtained: | a (6 p 2 ( 3 P 0 ) 6 d 2 D 3/2 )| = 128.0(0.6) g J /-0.79 MHz | b (6 p 2 ( 3 P 0 ) 6 d 2 D 3/2 )| = 58(4)

Frequency Selective Structures with Stochastic Deviations

This paper deals with the performance of frequency selective structures with defects. A frequency selective structure is in this case a periodic pattern of apertures in a conducting plate. The plate can be of arbitrary thickness. The defects can be by deviations in the placing of the apertures, in the material parameters, or in the shape of the apertures. First the perturbation to the far- field pa

Coordination of Phosphine-Thioether Ligands to Low-valent Metal Centers

The reactivity of the phosphine-thioether ligands bis(2-diphenylphosphino) ethylthio)ethane (PSSP), bis(2-(diphenylphosphino) ethyl)sulfane (PSP), PPh2CH2CH2SMe (PS), PPh2(o-C6H4SMe (PortoS), and PPh(o-C6H4SMe)2 (PSS) towards low-valent carbonyl clusters has been studied. In all structurally characterized clusters, the ligand donor atoms are terminally coordinated. The phosphine-thioether ligands