New phosphorus analogues of nitrogen classics--no carbon copies.
Getting heavy: The recently prepared phosphorus analogues of two old acquaintances, urea and dinitrogen tetroxide, bear some structural resemblance to their archetypes but are no carbon copies. Their syntheses and chemical properties reveal rather certain peculiarities, which back the doctrine that the electronic properties of the heavier elements in a group differ from those of the lightest congener.
Institut für Anorganische Chemie, University of Stuttgart, Pfaffenwaldring 55, Stuttgart (Germany) http://www.iac.uni-stuttgart.de/AKGudat. gudat@iac.uni-stuttgart.de.
Dietrich
D
Gudat
coordination compounds; heavy main-group elements; homologous compounds; phosphorus; synthetic methods