• search hit 2 of 4
Back to Result List

Dibora[2]ferrocenophane: A Carbene-Stabilized Diborene in a Strained cis-Configuration

Please always quote using this URN: urn:nbn:de:bvb:20-opus-141981
  • Unsaturated bridges that link the two cyclopentadienyl ligands together in strained ansa metallocenes are rare and limited to carbon-carbon double bonds. The synthesis and isolation of a strained ferrocenophane containing an unsaturated two-boron bridge, isoelectronic with a C=C double bond, was achieved by reduction of a carbene-stabilized 1,1’-bis(dihaloboryl)ferrocene. A combination of spectroscopic and electrochemical measurements as well as density functional theory (DFT) calculations was used to assess the influence of the unprecedentedUnsaturated bridges that link the two cyclopentadienyl ligands together in strained ansa metallocenes are rare and limited to carbon-carbon double bonds. The synthesis and isolation of a strained ferrocenophane containing an unsaturated two-boron bridge, isoelectronic with a C=C double bond, was achieved by reduction of a carbene-stabilized 1,1’-bis(dihaloboryl)ferrocene. A combination of spectroscopic and electrochemical measurements as well as density functional theory (DFT) calculations was used to assess the influence of the unprecedented strained cis configuration on the optical and electrochemical properties of the carbene-stabilized diborene unit. Initial reactivity studies show that the dibora[2]ferrocenophane is prone to boron-boron double bond cleavage reactions.show moreshow less
Metadaten
Author: Holger BraunschweigORCiD, Ivo Krummenacher, Crispin Lichtenberg, James Mattock, Marius Schäfer, Uwe Schmidt, Christoph Schneider, Thomas Steffenhagen, Stefan Ullrich, Alfredo Vargas
URN:urn:nbn:de:bvb:20-opus-141981
Document Type:Preprint
Faculties:Fakultät für Chemie und Pharmazie / Institut für Anorganische Chemie
Language:English
Parent Title (English):Angewandte Chemie, International Edition
Year of Completion:2016
Pagenumber:9
Source:Angewandte Chemie, International Edition, Volume 56, Issue 3, 889–892, doi:10.1002/anie.201609601
DOI:https://doi.org/10.1002/anie.201609601
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 54 Chemie / 546 Anorganische Chemie
GND Keyword:Metallocene; Bor; Diborane
Tag:Boron; Metallocenes; density functional calculations; diborenes; strained molecules
Release Date:2017/01/13
Note:
This is the pre-peer reviewed version of the following article: Angewandte Chemie, International Edition, Volume 56, Issue 3, 889–892, which has been published in final form at doi:10.1002/anie.201609601. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
EU-Project number / Contract (GA) number:669054
OpenAIRE:OpenAIRE
Licence (German):License LogoDeutsches Urheberrecht