„Ytterbiumdisulfid”︁: Eine Korrektur

?Ytterbiumdisulfide”?: A Correction The still open questions concerning preparation and crystal structure of ?Ytterbiumdisulfide”? could be answered now using new experimental results. The formerly investigated single crystals were not Yb^IIS₂ but BaS₂.     

Die intermolekulare Wechselwirkung der „Nicht ebenen Deformationsschwingung”︁ in Carbonaten

The intermolecular interactions of the ?non-planar deformation modes”? in arbonates The v₂ coupling constants of some carbonates of the aragonite structure, and of structures with similar configuration of the nearest anion neighbours, are investigated by means of ¹⁴C isotopic substitution. A relationship is found between the coupling constants and the fifth power of the anion distances. This relation shows that short-range repulsion forces and not dipole-dipole interaction governs the v₂ coupling of the carbonates investigated in these studies.     

Alfred Werners Koordinationstheorie: „Eine geniale Frechheit”︁

At the end of the 19^th century, the Swiss chemist Alfred Werner formulated the conceptional framework of coordination chemistry. This happened in contradiction to the then established and accepted scientific views concerning the constitution of molecules and provides an example of a scientific change of paradigms. The far‐reaching hypotheses were substantiated subsequently by Werner and his coworkers by relatively primitive, but ingenious, experimental techniques and provide the basis of much of today's coordination chemistry.