In publica commoda

Veranstaltungen

Highly Sterically-Crowded Subvalent Group 14 Compounds: Unexpected Structures and High Reactivity with Small Molecules

Titel der Veranstaltung Highly Sterically-Crowded Subvalent Group 14 Compounds: Unexpected Structures and High Reactivity with Small Molecules
Reihe Anorganisch Chemisches Kolloquium
Veranstalter Institut für Anorganische Chemie
Referent/in Prof. Dr. Philip P. Power
Einrichtung Referent/in University of California, Davis, Department of Chemistry
Veranstaltungsart Kolloquium
Kategorie Forschung
Anmeldung erforderlich Nein
Beschreibung A series of new compounds, MAr2 (M = Ge, Sn, or Pb; Ar = terphenyl ligands) display structures and structural trends that are counter-intuitive with regard to steric effects. These trends are also reflected in their spectroscopic properties and in their reaction chemistry. It was found that the presence or absence of substituents at apparently-remote sites on the ligands can exert a large influence on the course of the reactions, as well as on the structural characteristics of the group 14 element environment. Their reactions with a range of olefins and carbon monoxide, which showed unexpected trends, will be shown. In addition, the reactions of the related subvalent hydrides, ArMH, with a range of olefins and alkyne molecules, as well as the unexpected compounds that are formed, will be presented. A notable feature of their behavior is their ability to induce unexpected isomerizations in the olefin substrates. Finally, it is proposed that many of the peculiar properties of the compounds is related to the presence of dispersion force interactions of their ligand substituents.
Zeit Beginn: 10.10.2017, 17:15 Uhr
Ende: 10.10.2017 , 19:00 Uhr
Ort Fakultät für Chemie
MN28
Kontakt 0551 39-19424
selvan.demir@chemie.uni-goettingen.de
Dateianhang Ankündigung_Power_ACK_101017.pdf