Electrochemical Evidence for Hemilabile Coordination of 1,3-Dimethyllumazine to [1,1 '-Bis(diorganophosphino)ferrocene]copper(I)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F14%3A00434726" target="_blank" >RIV/61388955:_____/14:00434726 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1021/om500039a" target="_blank" >http://dx.doi.org/10.1021/om500039a</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/om500039a" target="_blank" >10.1021/om500039a</a>

Result language
angličtina
Original language name
Electrochemical Evidence for Hemilabile Coordination of 1,3-Dimethyllumazine to [1,1 '-Bis(diorganophosphino)ferrocene]copper(I)
Original language description
The complex cations [Cu(dippf)(DML)](+) ([1](+)) and [Cu(dppf)(DML)](+) ([2](+)), where dippf = 1,1'-bis(diisopropylphosphino)ferrocene, dppf = 1,1'-bis(diphenylphosphino)ferrocene, and DML = 1,3-dimethyllumazine, were prepared and crystallized as BF4- or PF6- salts. Structure determinations of the tetrafluoroborates revealed asymmetric O-4,N-5 chelation of DML to copper(I) with longer Cu-O bonds of about 2.25 angstrom. Reversible oxidation to [1](2+) and [2](2+) proceeds at the ferrocene units, while reduction leads to the neutral radical complexes [1] and [2] with the unpaired electron localized on the DML ligand. The occurrence of two voltammetric steps for the one-electron-reduction process is attributed to a two-species equilibrium caused by the hemilabile coordination of DML. Electrochemical and spectroelectrochemical measurements (UV-vis, IR) reveal increased coordination lability of the reduced complexes and their slow fragmentation.
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CG - Electrochemistry
OECD FORD branch
—

Project
<a href="/en/project/LD14129" target="_blank" >LD14129: Structure and dynamics of excited and redox states of photocatalytic complexes</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)