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RESEARCH PRODUCT
Remote Control by π-Conjugation of the Emissive Properties of Fischer Carbene-BODIPY Dyads.
Gong M. ChuAndrés Guerrero-martínezMiguel A. SierraCarmen Ramírez De ArellanoIsrael Fernándezsubject
010405 organic chemistryTransition metal carbene complexChromophore010402 general chemistryPhotochemistry01 natural sciencesFluorescence0104 chemical sciencesInorganic Chemistrychemistry.chemical_compoundchemistryOrganic chemistryMoietyEmission spectrumPhysical and Theoretical ChemistryBODIPYAbsorption (electromagnetic radiation)Bimetallic stripdescription
The synthesis, structure, and complete characterization of mono- and bimetallic dyads joining Fischer carbene complexes and BODIPY chromophores are reported. In these organometallic species, the Fischer carbene complex is attached to the BODIPY moiety through a p-aminophenyl group linked at the C8 carbon atom of the BODIPY core. The photophysical properties, namely the corresponding UV/vis absorption and emission spectra of these new metal-carbene complexes, are analyzed and discussed. It is found that whereas the absorption of the considered dyads strongly resembles that of the parent 4-anilinyl-substituted BODIPY, the fluorescence emission is significantly reduced in these species, very likely as a result of a Förster-type energy transfer mechanism. At variance, the replacement of the pentacarbonyl-metal(0) fragment by a carbonyl group leads to high fluorescence emission intensity. In addition, the emissive properties of the BODIPY core in these organometallic dyads can be tuned by remote groups by means of π-conjugation, as supported by density functional theory calculations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-03-04 | Inorganic chemistry |