6533b7d2fe1ef96bd125e1bf

RESEARCH PRODUCT

Distinct photodynamics of κ-N and κ-C pseudoisomeric iron(ii) complexes

Adam NeubaMohammed J. Al-marriMohammed J. Al-marriKatja HeinzeOliver KühnMarc BaltrunStefan LochbrunnerMichael SeitzPhilipp DierksStephan HohlochOlga S. BokarevaOlga S. BokarevaJens KalmbachRoland SchochAyla KruseMatthias Bauer

subject

TrisDenticitysynthesisPyridinepyridine derivativecarbenoidIron compoundsCatalysisexperimental studychemistry.chemical_compoundPyridineMaterials Chemistryphysical chemistrycontrolled studyChemistrySinglet oxygenPyridine ligandsSinglet oxygenMetals and AlloysMesoionicGeneral ChemistryNanosecondPyridine ligandSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialsunclassified drugCrystallographyPhotophysicsiron complexisomerCeramics and CompositesCarbeneschemical structurephotodynamicsphysicsExcitationchemical parameters

description

Two closely related FeII complexes with 2,6-bis(1-ethyl-1H-1,2,3-triazol-4yl)pyridine and 2,6-bis(1,2,3-triazol-5-ylidene)pyridine ligands are presented to gain new insights into the photophysics of bis(tridentate) iron(II) complexes. The [Fe(N^N^N)2]2+ pseudoisomer sensitizes singlet oxygen through a MC state with nanosecond lifetime after MLCT excitation, while the bis(tridentate) [Fe(C^N^C)2]2+ pseudoisomer possesses a similar 3MLCT lifetime as the tris(bidentate) [Fe(C^C)2(N^N)]2+ complexes with four mesoionic carbenes. Financial support from the Deutsche Forschungsge-meinschaft [DFG, Priority Program SPP 2102] "Light-controlled reactivity of metal complexes" (BA 4467/7-1, LO 714/11-1, KU 952/12-1, SE 1448/8-1, HE 2778/14-1) is gratefully acknowledged by M. B., O. K., S. L., M. S. and K. H. Scopus

10.1039/d1cc01716khttps://hdl.handle.net/10576/39366