Results 41 to 50 of about 3,178 (211)

Intra-/Intermolecular Bifurcated Chalcogen Bonding in Crystal Structure of Thiazole/Thiadiazole Derived Binuclear (Diaminocarbene)PdII Complexes

Crystals, 2018
The coupling of cis-[PdCl2(CNXyl)2] (Xyl = 2,6-Me2C6H3) with 4-phenylthiazol-2-amine in molar ratio 2:3 at RT in CH2Cl2 leads to binuclear (diaminocarbene)PdII complex 3c. The complex was characterized by HRESI+-MS, 1H NMR spectroscopy, and its structure
Alexander S. Mikherdov, Alexander S. Novikov, Mikhail A. Kinzhalov, Andrey A. Zolotarev, Vadim P. Boyarskiy   +4 more
doaj   +1 more source

Anion Transport with Chalcogen Bonds

Journal of the American Chemical Society, 2016
In this report, we introduce synthetic anion transporters that operate with chalcogen bonds. Electron-deficient dithieno[3,2-b;2',3'-d]thiophenes (DTTs) are identified as ideal to bind anions in the focal point of the σ holes on the cofacial endocyclic sulfur atoms.
Benz S, Macchione M, Verolet Q, Mareda J, Sakai N, Matile S   +5 more
openaire   +3 more sources

Chalcogen–Chalcogen Bonding Catalysis Enables Assembly of Discrete Molecules [PDF]

Journal of the American Chemical Society, 2019
Despite the observation of noncovalent interactions between chalcogen atoms in X-ray crystal structures, catalysis that harnesses the power of such chalcogen-chalcogen bonding interactions to produce advanced molecules remains an unresolved problem. Here, we show that a class of extraordinary chalcogen-bonding catalysts enables assembly of discrete ...
Wei Wang, Haofu Zhu, Shuya Liu, Zhiguo Zhao, Liang Zhang, Jingcheng Hao, Yao Wang   +6 more
openaire   +2 more sources

Catalysis with Pnictogen, Chalcogen, and Halogen Bonds [PDF]

Angewandte Chemie, 2018
AbstractHalogen‐ and chalcogen‐based σ‐hole interactions have recently received increased interest in non‐covalent organocatalysis. However, the closely related pnictogen bonds have been neglected. In this study, we introduce conceptually simple, neutral, and monodentate pnictogen‐bonding catalysts. Solution and in silico binding studies, together with
Benz, Sebastian, Poblador Bahamonde, Amalia Isabel, Low-Der's, Nicolas Vinh Tri, Matile, Stefan   +3 more
openaire   +6 more sources

Structural Features of Chalcogen Bonds and Weak Interactions Involving Chalcogens

, 2023
The structural features of chalcogen bonding (ChB) interactions in linear fragments R–Ch⋯Nu (Ch = S, Se, Te; R = C, N, O, S, Se, Te; Nu = N, O, S, Se, Te, F, Cl, Br, I) involving Ch⋯Nu distances shorter than the sum of relevant van der Waals (vdW) radii are reviewed.
M. CARLA ARAGONI, Yury Turubaev
openaire   +2 more sources

The Nature of Strong Chalcogen Bonds Involving Chalcogen‐Containing Heterocycles

Angewandte Chemie International Edition, 2020
AbstractChalcogen bonds are σ hole interactions and have been used in recent years as an alternative to hydrogen bonds. In general, the electrostatic potential at the chalcogen atom and orbital delocalization effects are made responsible for the orientation of the chalcogen bond. Here, we were able to show by means of SAPT calculations that neither the
Gebhard Haberhauer, Rolf Gleiter
openaire   +2 more sources

A Structural Approach to the Strength Evaluation of Linear Chalcogen Bonds

Molecules, 2023
The experimental structural features of chalcogen bonding (ChB) interactions in over 34,000 linear fragments R–Ch⋯A (Ch = S, Se, Te; R = C, N, O, S, Se, Te; A = N, O, S, Se, Te, F, Cl, Br, I) were analyzed.
Maria Carla Aragoni, Massimiliano Arca, Vito Lippolis, Anna Pintus, Yury Torubaev, Enrico Podda   +5 more
doaj   +1 more source

Tetrel, Chalcogen, and Charge-Assisted Hydrogen Bonds in 2-((2-Carboxy-1-(substituted)-2-hydroxyethyl)thio) Pyridin-1-ium Chlorides

Crystals, 2017
Reaction of 2-chloro-2-(diethoxymethyl)-3-substitutedoxirane or 1-chloro-1-(substituted) -3,3-diethoxypropan-2-one with pyridine-2-thiol in EtOH at 25 °C yields 3-(diethoxymethyl)-3-hydroxy-2-substituted-2,3-dihydrothiazolo[3,2-a]pyridin-4-ium chlorides,
Firudin I. Guseinov, Mikhail F. Pistsov, Eldar M. Movsumzade, Leonid M. Kustov, Victor A. Tafeenko, Vladimir V. Chernyshev, Atash V. Gurbanov, Kamran T. Mahmudov, Armando J. L. Pombeiro   +8 more
doaj   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

A Survey of Supramolecular Aggregation Based on Main Group Element⋯Selenium Secondary Bonding Interactions—A Survey of the Crystallographic Literature

Crystals, 2020
The results of a survey of the crystal structures of main group element compounds (M = tin, lead, arsenic, antimony, bismuth, and tellurium) for intermolecular M⋯Se secondary bonding interactions is presented.
Edward R. T. Tiekink
doaj   +1 more source