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Articles by Narayan Sinha
Making Mo(0) a Competitive Alternative to Ir(III) in Phosphors and Photocatalysts
Journal of the American Chemical Society Cite this: J. Am. Chem. Soc. 2025, XXXX, XXX Click to copy citationCitation copied! . This publication is licensed under CC-BY-NC-ND 4.0 . You are free to share (copy and redistribute) this article in any medium or format within the parameters below: Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. Non-Commercial (NC): Only non-commercial uses of the work are permitted.
Making Mo(0) a Competitive Alternative to Ir(III) in Phosphors and Photocatalysts
Journal of the American Chemical Society Cite this: J. Am. Chem. Soc. 2025, XXXX, XXX Click to copy citationCitation copied! . This publication is licensed under CC-BY-NC-ND 4.0 . You are free to share (copy and redistribute) this article in any medium or format within the parameters below: Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. Non-Commercial (NC): Only non-commercial uses of the work are permitted.
Electrochemiluminescence of a First‐Row d6 Transition Metal Complex
Coordination complexes of precious second and third row transition metal ions with low-spin d6 valence electron configuration have been critical in developing technologies that involve conversion between visible light and (electro)chemical energy.1 Archetypal examples include octahedral Ru(II), Os(II) and Ir(III) complexes with bidentate 2,2′-bipyridine and/or 2-phenylpyridinato ligands, which exhibit redox-active and emissive metal-to-ligand charge transfer (MLCT) or intraligand triplet...
Iron(III) Carbene Complexes with Tunable Excited State Energies for Photoredox and Upconversion
Download Hi-Res ImageDownload to MS-PowerPointCite This:J. Am. Chem. Soc. 2024, XXXX, XXX RETURN TO ARTICLES ASAPPREVArticleNEXT , Fabienne Ziereisen Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland , * , , Ajdin Velić University of Göttingen, Institute of Inorganic Chemistry, Tammannstraße 4, D-37077 Göttingen, Germany , Franc Meyer University of Göttingen, Institute of Inorganic Chemistry, Tammannstraße 4, D-37077 Göttingen, Germany , and * Cite this: J.
Iron(III) Carbene Complexes with Tunable Excited State Energies for Photoredox and Upconversion
Download Hi-Res ImageDownload to MS-PowerPointCite This:J. Am. Chem. Soc. 2024, XXXX, XXX RETURN TO ARTICLES ASAPPREVArticleNEXT , Fabienne Ziereisen Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland , * , , Ajdin Velić University of Göttingen, Institute of Inorganic Chemistry, Tammannstraße 4, D-37077 Göttingen, Germany , Franc Meyer University of Göttingen, Institute of Inorganic Chemistry, Tammannstraße 4, D-37077 Göttingen, Germany , and * Cite this: J.
Reversible Photoinduced Ligand Substitution in a Luminescent Chromium(0) Complex
Download Hi-Res ImageDownload to MS-PowerPointCite This:J. Am. Chem. Soc.
Reversible Photoinduced Ligand Substitution in a Luminescent Chromium(0) Complex
Download Hi-Res ImageDownload to MS-PowerPointCite This:J. Am. Chem. Soc.
Photoredox-active Cr(0) luminophores featuring photophysical properties competitive with Ru(II) and Os(II) complexes - Nature Chemistry
Abstract Coordination complexes of precious metals with the d6 valence electron configuration such as Ru(II), Os(II) and Ir(III) are used for lighting applications, solar energy conversion and photocatalysis. Until now, d6 complexes made from abundant first-row transition metals with competitive photophysical and photochemical properties have been elusive.
Trinuclear PdII Complexes with a C3‐Symmetric Triethynylbenzene‐Based Tris‐NHC Ligand: Catalytic Benefits
A new C -symmetric tris-imidazolium tribromide salt 3, featuring 1,3,5-substituted triethynylbenzene, was used for the preparation of a trinuclear PdII pyridine-enhanced precatalyst preparation stabilization and initiation-type (PEPPSI) complex by triple C2 deprotonation followed by the addition of PdCl . Trinuclear PdII complex possessing a combination of NHC and PPh ligands has also been synthesized.
The Nephelauxetic Effect Becomes an Important Design Factor for Photoactive First‐Row Transition Metal Complexes
Graphical Abstract The nephelauxetic (cloud-expanding) effect emerges from covalent character in the chemical bonds between a transition metal (TM) and its coordinated ligands. It alters the repulsion between individual d-electrons, and this can change the electronic structure of the complex.
A Near‐Infrared‐II Emissive Chromium(III) Complex
Cover Picture Narayan Sinha, orcid.org/0000-0002-0406-5552 Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland Search for more papers by this author Juan-Ramón Jiménez, orcid.org/0000-0003-3871-3594 Department of Inorganic and Analytical Chemistry, University of Geneva, 30 quai E.
A Near‐Infrared‐II Emissive Chromium(III) Complex
Abstract The combination of π-donating amido with π-accepting pyridine coordination units in a tridentate chelate ligand causes a strong nephelauxetic effect in a homoleptic CrIII complex, which shifts its luminescence to the NIR-II spectral range. Previously explored CrIII polypyridine complexes typically emit between 727 and 778 nm (in the red to NIR-I spectral region), and ligand design strategies have so far concentrated on optimizing the ligand field strength.
Template Synthesis of Three‐Dimensional Hexakisimidazolium Cages
A procedure for the synthesis of three‐dimensional hexakisimidazolium cage compounds has been developed. The reaction of the trigonal trisimidazolium salts H L(PF ) , decorated with three N‐olefinic pendants, and silver oxide yielded trinuclear trisilver(I) hexacarbene molecular cylinders of the type [Ag L ]3+ with the olefinic pendants from the two different tricarbene ligands arranged in three pairs.
Template Synthesis of Three‐Dimensional Hexakisimidazolium Cages
A procedure for the synthesis of three‐dimensional hexakisimidazolium cage compounds has been developed. The reaction of the trigonal trisimidazolium salts H L(PF ) , decorated with three N‐olefinic pendants, and silver oxide yielded trinuclear trisilver(I) hexacarbene molecular cylinders of the type [Ag L ]3+ with the olefinic pendants from the two different tricarbene ligands arranged in three pairs.
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