Ligand Exchange Triggered Photosensitizers – Bodipy‐Tagged NHC‐Metal Complexes for Conversion of <sup>3</sup> O <sub>2</sub> to <sup>1</sup> O <sub>2</sub>
نویسندگان
چکیده
A new imidazolium salt 3⋅HI with 8-Bodipy as one N-aryl substituent was synthesized from 8-chloro-Bodipy and imidazole followed by alkylation iPrI. NHC-metal complexes [CuCl(3)], [AuCl(3)], [Pd(allyl)Cl(3)] [MCl(cod)(3)] [MCl(CO)2(3)] (M=Rh, Ir) were the X-ray crystal structure of [IrCl(CO)2(3)] determined. The donation NHC 3 determined via IR (ν(CO) cyclic voltammetry (Ir(I/II) redox potential). photosensitizing properties for generation 1O2 quantified observing singlet oxygen quantum yield up to Φs.o.=0.63. [IrCl(cod)(3)] displays poor Φs.o.=0.09, but, following a simple ligand exchange reaction cod two CO [IrCl(CO)2(3)], pronounced increase Φs.o.=0.63 is observed.
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ژورنال
عنوان ژورنال: European Journal of Inorganic Chemistry
سال: 2022
ISSN: ['1434-1948', '1099-0682']
DOI: https://doi.org/10.1002/ejic.202200335