AC Kolloquium - Dr. Alexander Hinz Chemistry in confined spaces: Bulky carbazolides stabilise unusual coordination environments The use of sterically demanding substituents has allowed various developments in p-block chemistry, such as synthesis of tetrylenes (silylenes, germylenes, stannylenes and plumbylenes) which display unsual properties and reactivity. In these compounds, the group 14 element is low-coordinated with coordination number 2. Driving this strategy to its logical conclusion, the desired target for low-coordinated compounds is coordination number 1 by involving even bulkier ligands. To this end, we developed a carbazole-based substituent (Cbz) and initially employed it in tetrylene chemistry. The synthesis and properties of low-coordinated group 14 compounds will be discussed in detail, culminating in the mono-coordinated silicon(II) cation [(Cbz)Si]+. https://www.chemie.uni-bonn.de/lu/de/lu-events/ac-kolloquium-dr-alexander-hinz https://www.chemie.uni-bonn.de/lu/++resource++plone-logo.svg

Chemistry in confined spaces: Bulky carbazolides stabilise unusual coordination environments

The use of sterically demanding substituents has allowed various developments in p-block chemistry, such as synthesis of tetrylenes (silylenes, germylenes, stannylenes and plumbylenes) which display unsual properties and reactivity. In these compounds, the group 14 element is low-coordinated with coordination number 2. Driving this strategy to its logical conclusion, the desired target for low-coordinated compounds is coordination number 1 by involving even bulkier ligands. To this end, we developed a carbazole-based substituent (Cbz) and initially employed it in tetrylene chemistry. The synthesis and properties of low-coordinated group 14 compounds will be discussed in detail, culminating in the mono-coordinated silicon(II) cation [(Cbz)Si]+.