Raman bandshape analysis in liquid fluorine

A bandshape study of the Raman diffusion by liquid fluorine over the temperature range 75–100°K is presented. A discussion of the molecular reorientation process is developed.     

Bestimmung von ?thoxygruppen in organischen Siliciumverbindungen

Ohne Zusammenfassung     

Gas-chromatographische Bestimmung niedrigsiedender Verbindungen in Gegenwart eines st?renden L?sungsmittels

Ohne Zusammenfassung     

Applications of a quantum virial theorem to kronig and penney's model and to a diatomic molecule in static approximation

Kronig and Penney's model is used to test a new formulation of quantum virial theorem for periodic systems. It is shown that the corrective term to the usual formulation of the virial theorem corresponding to boundary conditions is of importance and gives correct energy values for the system. Application of the virial theorem to a diatomic molecule also shows an important boundary condition correction if the distance of the nuclei is slightly different from equilibrium position, in accordance with the above correction.     

4. Analyse von biologischem Material

Ohne Zusammenfassung     

Near integral domains II

A direct product decomposition is given for the multiplicative semigroup of a finite near integral domain in terms of the subsemigroup of left identities and a group of automorphisms on the additive group of the domain. Conditions are given which insure that every element will have a uniquen-th root. If there existsx≠0 such that (?x)y=?(xy), for eachy, then the additive group of the near integral domain is abelian. Other conditions sufficient for the commutativity of the additive group are given. An example illustrates that non-isomorphic finite near integral domains can have a left ideal decomposition into Sylow subgroups which are isomorphic as near-rings. Another example shows that an infinite near integral domain need not have a nilpotent additive group, even in the d. g. case. It is conjectured that for each natural numbern there is a near integral domain whose additive group is of nilpotent classn.     

II. Anorganisch Substanzen

Ohne Zusammenfassung