6533b7dbfe1ef96bd12714e0
RESEARCH PRODUCT
Higher MLCT lifetime of carbene iron(ii) complexes by chelate ring expansion
Katja HeinzeRoland SchochAyla KruseThomas ReuterMatthias BauerStefan Lochbrunnersubject
010405 organic chemistryLigandMetals and AlloysGeneral ChemistryOrbital overlap010402 general chemistryRing (chemistry)01 natural sciencesCatalysisPyridine ligand0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialschemistry.chemical_compoundCrystallographychemistryMaterials ChemistryCeramics and CompositesChelationCarbenedescription
Combining strong σ-donating N-heterocyclic carbene ligands and π-accepting pyridine ligands with a high octahedricity in rigid iron(ii) complexes increases the 3MLCT lifetime from 0.15 ps in the prototypical [Fe(tpy)2]2+ complex to 9.2 ps in [Fe(dpmi)2]2+12+. The tripodal CNN ligand dpmi (di(pyridine-2-yl)(3-methylimidazol-2-yl)methane) forms six-membered chelate rings with the iron(ii) centre leading to close to 90° bite angles and enhanced iron-ligand orbital overlap.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-07-10 | Chemical Communications |