Blar i forfatter Artikler, rapporter og annet (kjemi) "Thomassen, Ivar Kristian"

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    • Iridium Corroles Exhibit Weak Near-Infrared Phosphorescence but Efficiently Sensitize Singlet Oxygen Formation 

      Thomassen, Ivar Kristian; Mccormick-Mcpherson, Laura J; Borisov, Sergey M.; Ghosh, Abhik (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-05)
      Six-coordinate iridium(III) triarylcorrole derivatives, Ir[T<i>p</i>XPC)]L<sub>2</sub>, where T<i>p</i>XPC = tris(<i>para</i>-X-phenyl)corrole (X = CF<sub>3</sub>, H, Me, and OCH<sub>3</sub>) and L = pyridine (py), trimethylamine (tma), isoquinoline (isoq), 4-dimethylaminopyridine (dmap), and 4-picolinic acid (4pa), have been examined, with a view to identifying axial ligands most conducive to ...

    • Protonation-Induced Hyperporphyrin Spectra of meso-Aminophenylcorroles 

      Thomassen, Ivar Kristian; Ghosh, Abhik (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04-06)
      UV–vis spectrophotometric titrations have been carried out on <i>meso-</i>tris(<i>o/m/p</i>-aminophenyl)corrole (H<sub>3</sub>[<i>o/m/p</i>-TAPC]) and <i>meso-</i>triphenylcorrole (H<sub>3</sub>[TPC]) in dimethyl sulfoxide with methanesulfonic acid (MSA). Monoprotonation was found to result in hyperporphyrin spectra characterized by new, red-shifted, and intense Q bands. The effect was particularly ...

    • Synthesis and Molecular Structure of a Copper Octaiodocorrole 

      Thomassen, Ivar Kristian; McCormick, Laura J.; Ghosh, Abhik (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-09)
      Although rather delicate on account of their propensity to undergo deiodination, β-octaiodoporphyrinoids are of considerable interest as potential precursors to novel β-octasubstituted macrocycles. Presented herein are early results of our efforts to synthesize β-octaiodocorrole derivatives. Oxidative condensation of 3,4-diiodopyrrole and aromatic aldehydes failed to yield free-base octaiodocorroles. ...