Results 111 to 120 of about 3,178 (211)

Cationic Sulfonium‐Based Tripodal Ligand and Its Rh(I) Complexes

Chemistry – A European Journal, EarlyView.
We report a cationic EP3‐type tripodal ligand based on an aromatic sulfonium cation (E = S+) along with a series of its Rh(I) complexes. Structural, spectroscopic, electrochemical, and computational analyses of these complexes compared to isostructural analogs (E = Si− or P) reveal pronounced electron density depletion at Rh in the sulfonium congener ...
Nitsan Barel, Shrouq Mujahed, Kamal Uddin Ansari, Katarzyna Młodzikowska‐Pieńko, Renana Gershoni‐Poranne, Yuri Tulchinsky   +5 more
wiley   +1 more source

N─H or O─H Bond Activation With a Bicyclic Si4 Ring Compound

Chemistry – A European Journal, EarlyView.
The bicyclic Si4 ring compound with zwitterionic character reacts with NH3, H2O, and selected alcohols to give functionalized saturated silicon rings, siliconoid clusters with unsubstituted Si atoms, or simple 1,3‐addition products. The experimentally observed reactivity could be rationalized based on results from mechanistic calculations employing ...
Michael Quest, Florian Schreiner, Alexander Hepp, Constantin G. Daniliuc, Kasperi M. Salonen, Janne Körkkö, Heikki M. Tuononen, Felicitas Lips   +7 more
wiley   +1 more source

Cooperative Bifurcated Chalcogen Bonding and Hydrogen Bonding as Stereocontrolling Elements for Selective Strain-Release Septanosylation. [PDF]

J Am Chem Soc, 2023
Ma W, Kirchhoff JL, Strohmann C, Grabe B, Loh CCJ.   +4 more
europepmc   +1 more source

Deriving General Energy Predictors for Pnictogen Bonding

Chemistry – A European Journal, EarlyView.
This study derives general energetic predictors for pure pnictogen bonds from nitrogen to bismuth based on the potential energy density at the bond critical point. The research highlights the increasing occurrence of secondary interactions for heavier elements.
Jan Langwald, Antonio Frontera
wiley   +1 more source

A persistent germylyne radical enabling reversible σ-dimerization and diverse bond activation

Nature Communications
The reversible σ-dimerization of radicals is a fundamental process in bond formation and cleavage, yet achieving this with an isolable heavy carbyne analogue has remained a paramount challenge.
Xingyu Yang, Meirong Song, Liancheng He, Shanshan Kong, Runbo Pei, Quanchun Sun, Wanwan Jia, Shuxuan Tang, Xiao-Song Xue, Xinping Wang   +9 more
doaj   +1 more source

Multi‐state Photoswitching in Thienoquinoid‐Based Fluorescent Trithiophenes

Chemistry – A European Journal, EarlyView.
A methine‐bridged trithiophene with a thienoquinoid core undergoes photoisomerization of both C═C bonds, affording three geometrical isomers in a ratio controlled by the irradiation wavelength. Despite full π‐conjugation, the system retains fluorescence, enabling wavelength‐addressable multi‐state switching with luminescent readout.
Rio Nishimura, Stefan Hecht, Shohei Saito, Ken‐ichi Yamashita   +3 more
wiley   +1 more source

Synthesis and crystal structure of the adduct between 2-pyridylselenyl chloride and isobutyronitrile

Acta Crystallographica Section E: Crystallographic Communications
The reaction between 2-pyridylselenenyl chloride and isobutyronitrile results in the formation of the corresponding cationic pyridinium-fused 1,2,4-selenodiazole, namely, 3-(propan-2-yl)-1,2,4-[1,2,4]selenadiazolo[4,5-a]pyridin-4-ylium chloride ...
Ayalew W. Temesgen, Alexander A. Sapronov, Alexey S. Kubasov, Alexander S. Novikov, Tuan Anh Le, Alexander G. Tskhovrebov   +5 more
doaj   +1 more source

From Charge‐Transfer Adducts to (Tri)Halide‐Templated Supramolecular Cages: Covalent vs Ionic Products in the Reactions of Pyridin‐4‐ylthio‐Substituted Tetrathiafulvalene With Dihalogens and Interhalogens

Chemistry – A European Journal, EarlyView.
The reactions between tetra(pyridin‐4‐ylthio)tetrathiafulvalene and Br2/I2/ICl/IBr led to a variety of products, including a rare example of neutral 1:4 CT adduct and ionic products showing supramolecular cage motifs at (tri)halide templates. The nature of the reaction products was elucidated based on XRD analysis, Raman spectroscopy and QTAIM, NCI ...
Anna Caria, Stéphane A. Baudron, M. Carla Aragoni, Vito Lippolis, Anna Pintus, Enrico Podda, Massimiliano Arca   +6 more
wiley   +1 more source

Multistate Redox-Switchable Ion Transport Using Chalcogen-Bonding Anionophores. [PDF]

J Am Chem Soc, 2023
Docker A, Johnson TG, Kuhn H, Zhang Z, Langton MJ.   +4 more
europepmc   +1 more source

Achievement of Transition Metal Chalcogenides/Oxides in Hydrogen Production by Seawater Electrolysis

EcoEnergy, EarlyView.
Transition metal chalcogenides (TMCs)/oxides have shown great application potential in seawater splitting for hydrogen generation due to their adjustable electronic properties, abundant active sites, and excellent catalytic performance. ABSTRACT Under the impetus of global “dual carbon” goals, green hydrogen has become a key component of the future ...
Xiaohui Du, Xinyu Li, Jianna Li, Tao Sun
wiley   +1 more source