Justin R. Walensky

Elucidating metal (Zr, Hf, Th, U)-hydride covalency using 1H NMR chemical shifts and density functional calculations

M. Gayanethra Kaumini, Xiaojuan Yu, Steven P. Kelley, Jochen Autschbach et autres

Metal–ligand covalency is not fully understood for the actinides and studies comparing group IV transition metals with isostructural actinide complexes are limited. Here, the authors report [(C5Me5)2(2,6-iPr2C6H3O)M(H)] (M = Hf, Th, and U) complexes and compare them to a Zr analogue, exploring …

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Isolation of Aminotroponiminate‐Stabilized Neutral and Cationic Heavier Tetrel Compounds

Hemant Kumar, Steven P. Kelley, Tanya Batra, Selvarajan Nagendran et autres

Synthesis of aminotroponiminate (ATI)‐ligand stabilized Si(IV) and Ge(IV) trichlorides [(ATI)ECl 3 ] (E = Si 1 ; Ge 2 ) has been reported. Compound 1 has been further reacted with GeCl 2 · (1,4‐dioxane) and SnCl 2 to afford ATI‐stabilized Si(IV) cations …

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Unusual bonding situations in Th( iv ) and U( iv )–Al( iii ) pnictogen complexes

Pritam Mahawar, Ganping Wang, Robert J. Ward, Steven P. Kelley et autres

)Al]. Based on the solid-state structures and DFT calculations, including Nucleus Independent Chemical Shift (NICS), all six complexes show aromaticity within the An-E-Al-E moiety. For Th, only σ-aromaticity is observed, but both σ + π aromaticity is observed in the U complexes.

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Aluminum dihydride from E( iv ) precursors (E = Si, Ge) and its bond-activation reactivities

Hemant Kumar, Steven P. Kelley, Tanya Batra, Selvarajan Nagendran et autres

A distinctive synthetic route has been demonstrated in which the aminotroponiminato (ATI)-stabilized aluminum dihydride complex [(ATI)AlH 2 ] was prepared from a [(ATI)SiHCl 2 ] precursor. Its reactivity to break CE (E = S, Se) bond is demonstrated.

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Synthesis and Reactivity of Terminal U(IV) Hydrides Including the Isolation of a κ1-Formate

M. Gayanethra Kaumini, Iker Del Rosal, Pokpong Rungthanaphatsophon, Steven P. Kelley et autres

Formation of a rare terminal U(IV) hydride complex, [(C 5 Me 5 ) 2 (2,6- t Bu 2 -4-MeC 6 H 2 O)U(H)], was accomplished through the hydrogenation of a uranium(IV) metallocene hydrocarbyl complex. The reactivity of this hydride was probed with …

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Author response for "Multicomponent reaction (MCR): An emerging tool-box of protein bioconjugation"

Joydip Chatterjee, Justin R. Walensky, Sayantan Kundu, Gargi Biswas et autres

Empowering Micellar Catalysis and Representation Learning with Limited Data Availability: Surfactant Design Principle Can Boost Yield Predictions

Upasana Roy, Karanjeet Kaur, Ramesh Hiralal Choudhary, Jagdeep K. Virdi et autres

Traditional trial-and-error methods for reaction optimization are time- and resource-consuming. The ability to accurately predict reaction yields under mild and safer conditions using artificial intelligence (AI) can enhance resource-efficient synthesis and significantly advance synthetic chemistry. This study introduces the development of an …

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Author response for "Multicomponent reaction (MCR): An emerging tool-box of protein bioconjugation"

Joydip Chatterjee, Justin R. Walensky, Sayantan Kundu, Gargi Biswas et autres

Back Cover: Electrocatalytic Micelle‐Driven Hydrodefluorination for Accessing Unprotected Monofluorinated Indoles (Angew. Chem. Int. Ed. 10/2025)

Karanjeet Kaur, Raki Mandal, Justin R. Walensky, Fabrice Gallou et autres

Non-ionic designer aqueous micelles hold significant promise as versatile media, functioning as solvents, electrolytes, and reaction boosters in electrocatalysis. Their unique structures and properties enhance the efficiency of transition metal-free hydrodefluorination of geminal difluorinated indoles, thereby eliminating the need for toxic organic …

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Rücktitelbild: Electrocatalytic Micelle‐Driven Hydrodefluorination for Accessing Unprotected Monofluorinated Indoles (Angew. Chem. 10/2025)

Karanjeet Kaur, Raki Mandal, Justin R. Walensky, Fabrice Gallou et autres

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Electrocatalytic Micelle‐Driven Hydrodefluorination for Accessing Unprotected Monofluorinated Indoles

Karanjeet Kaur, Raki Mandal, Justin R. Walensky, Fabrice Gallou et autres

Toxic organic solvents and electrolytes, traditionally indispensable for electro-organic synthesis, are now being reconsidered. In developing more sustainable electro-organic synthesis, we've harnessed the aqueous micelles as solvents and electrolyte-like structures when deformed under an electric field. The technology is showcased in synthetically …

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Electrocatalytic Micelle‐Driven Hydrodefluorination for Accessing Unprotected Monofluorinated Indoles

Karanjeet Kaur, Raki Mandal, Justin R. Walensky, Fabrice Gallou et autres

Abstract Toxic organic solvents and electrolytes, traditionally indispensable for electro‐organic synthesis, are now being reconsidered. In developing more sustainable electro‐organic synthesis, we've harnessed the aqueous micelles as solvents and electrolyte‐like structures when deformed under an electric field. The technology is showcased in …

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