The Reactivity Studies of Chromium-Chromium Quintuple Bond Stabilized by Aminopyridinato Ligands

The reactivity of the quintuply bonded dichromium complex (1) stabilized by aminopyridinato ligands have been investigated. The reaction of 1 with alkynes and dienes leads to cycloaddition reactions. Furthermore, the reaction of 1 with O2 leads to the formation of dimeric CrV specie while, higher homologues of group 16 elements undergo addition reactions to give CrII species. For homodiatomic molecules of group 17, insertion of the quintuple bond into the corresponding X2 bond was observed (X = Cl, Br, I). The reaction of 1 with diphenyldisulfide or diphenyldiselenide shows the insertion of the Cr-Cr bond into the S-S or Se-Se bond and the formation of complexes in which the two Cr atoms are joined by two bridging PhS or PhSe groups. Moreover, the reaction of 1 with phosphines R2PX ligands is selective and leads to the formation of phosphide-bridged chromium complexes.

Level thesis:degree_level

thesis.doctoral

Grantor dc:publisher

Universität Bayreuth

Year

2013

Author dc:creator

• Sobgwi Tamne, Emmanuel

Contributors dc:contributor

• Kempe, Rhett

Repository record source_url

https://epub.uni-bayreuth.de/id/eprint/1693/

OAI identifier oai:identifier

oai:epub.uni-bayreuth.de:1693