Platinmetalle

Ohne Zusammenfassung     

Zur Fluoridbestimmung in Kryolith und in Elektrolyten der Aluminiumherstellung

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Microscopic theory of the isovector dipole resonance at high angular momenta

The giant dipole resonance at large angular velocities and finite temperatures is studied within the framwork of temperature-dependent linear response theory for superfluid Fermi liquids. The peak energy of the resonance and its splitting is discussed as a function of angular momentum and temperature. The influence of the shape and gap parameters on the fine structure is investigated.     

Wurtzitan (Tetracyclo[5.3.1.12,6.04,9]dodecan)

A new synthesis of wurtzitane (13) is described starting from 2-oxo-protoadamant-4-ene (2). The key intermediate ketone 7 was obtained by regiospecific ring expansion of the β-amino alcohol 6. Entry to the wurtzitane system involved solvolysis of the tricyclic unsaturated mesylate 10 (→11).     

0,5 bis 20 Mikro?quivalente Europium und Ytterbium

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Triplet quantum yield determination by photosensitized oxygenation in the presence of heavy atom additives: Rhodamine B in methanol

Relative rates of heavy-atom-enhanced photosensitized ¹O₂-reactions may be used to determine φ^o_T of sensitizers in heavy-atom-free solutions. φ^o_T = 0.12 ± 0.02 is obtained for a 5·10^?5 M methanolic solution of Rhodamine B .     

13C NMR spectra of diazastilbenes. II—Torsion angles of trans-pyridinalanilines and trans-benzylideneaminopyridines

The torsion angles of trans-pyridinalanilines and trans-benzylideneanilines were derived from the chemical shifts of the para-carbon atoms. The N-torsion angle is between 33 and 59°. For the C-torsion angle, a value of approximately 10° is obtained for the benzylideneaminopyridines and the C-torsion angle for the pyridinalalines is estimated to be in the same range.