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RESEARCH PRODUCT
Synthesis, crystallographic and electrochemical study of ethynyl[2.2]paracyclophane derived cobalt metallatetrahedranes
Marek M. KubickiYoann RousselinMichael KnorrLaurent GuyardAbderrahim KhatyrCarsten StrohmannSébastien RicheterSébastien ClémentYves MugnierPhilippe Gerbiersubject
chemistry.chemical_elementAlkyne[CHIM.INOR]Chemical Sciences/Inorganic chemistry010402 general chemistryElectrochemistry01 natural sciencesBiochemistryInorganic ChemistryMaterials ChemistryluminescencealkyneElectronic communication[CHIM.COOR]Chemical Sciences/Coordination chemistryPhysical and Theoretical ChemistryRotating disk electrodeSpectroscopyComputingMilieux_MISCELLANEOUSchemistry.chemical_classification010405 organic chemistryOrganic Chemistry[ CHIM.COOR ] Chemical Sciences/Coordination chemistry[ CHIM.INOR ] Chemical Sciences/Inorganic chemistrycobalt0104 chemical sciencesCrystallographychemistryelectrochemistryCyclic voltammetry[2.2]paracyclophaneLuminescenceCobaltdescription
Abstract A series of alkynyl cobalt complexes [Co2(μ-η2-HCC–PCP)(CO)6−nLn] [n = 0 (2); n = 2, L2 = dppa (3), dppm (4), dcpm (6), 2 P(OPh)3 (7)] and [Co2(CO)4L2]2(μ-η2:μ-η2-HCC–PCP–CCH)] (L2 = dppm (8), dcpm (9); (PCP = [2.2]paracyclophane) has been prepared and characterized. The molecular structures of 3 and 4, as well as that of [Co2(CO)4(μ-CO)2(μ2-dcpm)] (5), have been determined by X-ray diffraction. Electrochemical studies (Cyclic Voltammetry, Rotating Disk Electrode) and luminescence spectroscopy have been used to evaluate the extent of the electronic communication through the PCP motif using the “Co2C2” centres as a probe. No electronic coupling between the Co2(CO)n centres via the bridging PCP-ligand was evidenced neither by electrochemistry nor by luminescence measurements in diyne complexes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-02-14 |