<i>bis</i>(2-Phenylpyridinato)-[4,4′-<i>bis</i>(iodoethynyl)-2,2′-bipyridine]-iridium(III) Hexafluorophosphate

This work presents the synthesis and structural characterization of a novel type of biscyclometalated Ir(III) complex, which is equipped with two iodoethynyl moieties on its 2,2′-bipyridine (bpy) ligand. Iodoethynyl moieties represent prominent donor systems for the formation of supramolecular struc...

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Main Authors: Patrick Endres, Nishi Singh, Andreas Winter, Helmar Görls, Ulrich S. Schubert
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Molbank
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Online Access:https://www.mdpi.com/1422-8599/2025/2/M2024
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author Patrick Endres
Nishi Singh
Andreas Winter
Helmar Görls
Ulrich S. Schubert
author_facet Patrick Endres
Nishi Singh
Andreas Winter
Helmar Görls
Ulrich S. Schubert
author_sort Patrick Endres
collection DOAJ
description This work presents the synthesis and structural characterization of a novel type of biscyclometalated Ir(III) complex, which is equipped with two iodoethynyl moieties on its 2,2′-bipyridine (bpy) ligand. Iodoethynyl moieties represent prominent donor systems for the formation of supramolecular structures via halogen bonding (X-bonding). The synthesis of <i>bis</i>(2-phenylpyridinato)-[4,4′-bis(iodoethynyl)-2,2′-bipyridine]iridium(III) hexafluorophosphate, (<b>2</b>)(PF<sub>6</sub>), is straightforward and involves post-complexation iodination, thus expanding the already rich toolbox for performing “chemistry on the complex”. The formation of the iodoethynyl moieties was unequivocally proven by <sup>1</sup>H-NMR spectroscopy, ESI-TOF mass spectrometry, and single-crystal XRD analysis.
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spelling doaj-art-5fadfa8ceb2d4457bcabd25af5d4d7532025-08-20T03:16:23ZengMDPI AGMolbank1422-85992025-06-0120252M202410.3390/M2024<i>bis</i>(2-Phenylpyridinato)-[4,4′-<i>bis</i>(iodoethynyl)-2,2′-bipyridine]-iridium(III) HexafluorophosphatePatrick Endres0Nishi Singh1Andreas Winter2Helmar Görls3Ulrich S. Schubert4Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstr. 10, 07743 Jena, GermanyLaboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstr. 10, 07743 Jena, GermanyLaboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstr. 10, 07743 Jena, GermanyInstitute for Inorganic and Analytical Chemistry (IAAC), Friedrich-Schiller-University Jena, Humboldtstr. 8, 07743 Jena, GermanyLaboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Humboldtstr. 10, 07743 Jena, GermanyThis work presents the synthesis and structural characterization of a novel type of biscyclometalated Ir(III) complex, which is equipped with two iodoethynyl moieties on its 2,2′-bipyridine (bpy) ligand. Iodoethynyl moieties represent prominent donor systems for the formation of supramolecular structures via halogen bonding (X-bonding). The synthesis of <i>bis</i>(2-phenylpyridinato)-[4,4′-bis(iodoethynyl)-2,2′-bipyridine]iridium(III) hexafluorophosphate, (<b>2</b>)(PF<sub>6</sub>), is straightforward and involves post-complexation iodination, thus expanding the already rich toolbox for performing “chemistry on the complex”. The formation of the iodoethynyl moieties was unequivocally proven by <sup>1</sup>H-NMR spectroscopy, ESI-TOF mass spectrometry, and single-crystal XRD analysis.https://www.mdpi.com/1422-8599/2025/2/M2024iridium complexeshalogen bondingorganometallic compoundsupramolecular chemistryX-ray diffraction
spellingShingle Patrick Endres
Nishi Singh
Andreas Winter
Helmar Görls
Ulrich S. Schubert
<i>bis</i>(2-Phenylpyridinato)-[4,4′-<i>bis</i>(iodoethynyl)-2,2′-bipyridine]-iridium(III) Hexafluorophosphate
Molbank
iridium complexes
halogen bonding
organometallic compound
supramolecular chemistry
X-ray diffraction
title <i>bis</i>(2-Phenylpyridinato)-[4,4′-<i>bis</i>(iodoethynyl)-2,2′-bipyridine]-iridium(III) Hexafluorophosphate
title_full <i>bis</i>(2-Phenylpyridinato)-[4,4′-<i>bis</i>(iodoethynyl)-2,2′-bipyridine]-iridium(III) Hexafluorophosphate
title_fullStr <i>bis</i>(2-Phenylpyridinato)-[4,4′-<i>bis</i>(iodoethynyl)-2,2′-bipyridine]-iridium(III) Hexafluorophosphate
title_full_unstemmed <i>bis</i>(2-Phenylpyridinato)-[4,4′-<i>bis</i>(iodoethynyl)-2,2′-bipyridine]-iridium(III) Hexafluorophosphate
title_short <i>bis</i>(2-Phenylpyridinato)-[4,4′-<i>bis</i>(iodoethynyl)-2,2′-bipyridine]-iridium(III) Hexafluorophosphate
title_sort i bis i 2 phenylpyridinato 4 4 i bis i iodoethynyl 2 2 bipyridine iridium iii hexafluorophosphate
topic iridium complexes
halogen bonding
organometallic compound
supramolecular chemistry
X-ray diffraction
url https://www.mdpi.com/1422-8599/2025/2/M2024
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AT andreaswinter ibisi2phenylpyridinato44ibisiiodoethynyl22bipyridineiridiumiiihexafluorophosphate
AT helmargorls ibisi2phenylpyridinato44ibisiiodoethynyl22bipyridineiridiumiiihexafluorophosphate
AT ulrichsschubert ibisi2phenylpyridinato44ibisiiodoethynyl22bipyridineiridiumiiihexafluorophosphate