Group IA elements: Chemical properties (a); Group IA elements: Chemical properties (b)

A theoretical analysis of the chemical bonding and electronic structure of graphene interacting with Group IA and Group VIIA elements

Chemical Bonding of Main-Group Elements

Prior to any meaningful discussion of bonding in main-group chemistry, we have to provide a reasonably accurate definition of what a main-group element is. In general, we assume that main-group elements are those that essentially use only their valence sand p-orbitals for chemical bonding. This leads to a number of borderline cases that require closer inspection. Assuming that the outer d-orbit...

SYNERGIC PROMOTION OF CATALYST BY GROUP VIII B ELEMENTS

Group VIII B metal oxides supported on gamma-alumina were investigated as catalysts and promoters of MoO3 hydrodesulfurization catalysis. Superior promotion was observed in PbO promoted catalyst compared to that of CoO, the typically accepted promoter. Other metal oxides, SnO and Ho2O3 exhibited reasonable hydrodesulfurization catalysis promotion but lower than for CoO promoted catalyst.

Theoretical Predictions of Properties and Chemical Behavior of Superheavy Elements

Fully relativistic electronic structure calculations have been performed for gas phase and aqueous phase compounds of elements 104 through 108. Based on these calculations, volatility and complex formation, as well as trends in these properties, have been predicted. The transactinide compounds were shown to exhibit properties very similar to those of the lighter homologs in the respective chemi...

Chemical Properties of Superheavy Elements: Theory and Experiment

Chemical investigations of transactinides are a very exciting field of research. Through these experiments the dramatic influence of relativity on chemical properties of these extremely heavy elements can be studied, and the newly produced atoms are assigned their place in the periodic table. However, there are a number of challenges connected with this research. All the superheavy elements are...