Related Experiment Video
Updated: Jan 21, 2026

Bridging the Bio-Electronic Interface with Biofabrication
Published on: June 6, 2012
Pseudodiborenes: hydride-bridged diboranes(5) as two-electron reductants of chalcogens
Dominic Prieschl1, Maximilian Dietz, Jonas H Muessig
1Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany. h.braunschweig@uni-wuerzburg.de.
Abstract:
The reactivity of two nucleophilic neutral sp2-sp3 diboranes towards chalcogens is presented herein. Both diboranes(5) serve as two-electron reductants, incorporating oxygen, sulfur and selenium atoms. Treatment with chalcogen sources results in the oxidative insertion of one chalcogen atom into the B-B single bond, while depending on the negative inductive effect of the chalcogen and the boron bound aryl substituent further N-heterocyclic carbene (NHC) ring expansion and hydride migration can occur. These reactions provide access to unprecedented six- or seven-membered heterocycles and help to illuminate the pseudo-multiple bonding character of hydrogen-bridged B-B single bonds.
More Related Videos
12:05U2O5 Film Preparation via UO2 Deposition by Direct Current Sputtering and Successive Oxidation and Reduction with Atomic Oxygen and Atomic Hydrogen
Published on: February 21, 2019
10:03The Preparation of Electrohydrodynamic Bridges from Polar Dielectric Liquids
Published on: September 30, 2014
Related Concept Videos
Esters to Alcohols: Hydride Reductions
Lithium aluminum hydride is a source of hydride ions and functions as a nucleophile. The mechanism proceeds in three steps. Firstly, the nucleophilic hydride ion attacks the carbonyl carbon of the ester to form a tetrahedral intermediate. Subsequently, the carbonyl group re-forms,...
Carboxylic Acids to Primary Alcohols: Hydride Reduction
Oxidation-Reduction Reactions
Design Example: Strain Gauge Bridge or Wheatstone Bridge
Bridge rectifier
Operationally, the bridge rectifier allows current flow through two of its diodes during each...
Wheatstone Bridge
Thus, for accurate resistance measurements, a...