Results 21 to 30 of about 4,166 (227)

Nature and strength of chalcogen–π bonds [PDF]

Physical Chemistry Chemical Physics, 2018
We have analyzed the chalcogen–π bonding mechanism in a systematic series of model systems through Kohn–Sham molecular orbital theory and a quantitative energy decomposition scheme.
Marco Bortoli, Shah Masood Ahmad, Trevor A. Hamlin, F. Matthias Bickelhaupt, Laura Orian   +4 more
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Matere Bonds vs. Multivalent Halogen and Chalcogen Bonds: Three Case Studies

Molecules, 2022
The term matere bond has been recently used to refer to an attractive noncovalent interaction between any element of group 7 acting as an electrophile and any atom (or group of atoms) acting as a nucleophile.
Rosa M. Gomila, Antonio Frontera
doaj   +1 more source

Reliable Comparison of Pnicogen, Chalcogen, and Halogen Bonds in Complexes of 6-OXF2-Fulvene (X = As, Sb, Se, Te, Be, I) With Three Electron Donors

Frontiers in Chemistry, 2020
The pnicogen, chalcogen, and halogen bonds between 6-OXF2-fulvene (X = As, Sb, Se, Te, Br, and I) and three nitrogen-containing bases (FCN, HCN, and NH3) are compared.
Na Liu, Qingzhong Li, Sean A. C. McDowell   +2 more
doaj   +1 more source

Noncovalent chalcogen and tetrel bonding interactions: Spectroscopic study of halide–carbonyl sulfide complexes

Natural Sciences, 2023
Chalcogen and tetrel intermolecular bonding interactions formed between carbonyl sulfide and halide anions have been studied utilizing a combined experimental and theoretical approach.
Christian T. Haakansson, Peter D. Watson, Timothy R. Corkish, Hayden T. Robinson, Allan J. McKinley, Duncan A. Wild   +5 more
doaj   +1 more source

Catalysis with Chalcogen Bonds

Angewandte Chemie International Edition, 2016
AbstractHerein, we introduce catalysts that operate with chalcogen bonds. Compared to conventional hydrogen bonds, chalcogen bonds are similar in strength but more directional and hydrophobic, thus ideal for precision catalysis in apolar solvents. For the transfer hydrogenation of quinolines and imines, rate enhancements well beyond a factor of 1000 ...
Sebastian Benz, Javier López‐Andarias, Jiri Mareda, Naomi Sakai, Stefan Matile   +4 more
openaire   +5 more sources

Chalcogen–chalcogen secondary bonding interactions in trichalcogenaferrocenophanes

CrystEngComm, 2016
The solid-state structures of all members in the series of trichalcogenaferrocenophanes [FeIJC5H4E)2E′] (E, E′ = S, Se, Te) (1–9) have been explored to understand the trends in secondary bonding interactions (SBIs) between chalcogen elements sulfur, selenium, and tellurium.
Karjalainen, Minna M., Sanchez-Perez, Clara, Rautiainen, J. Mikko, Oilunkaniemi, Raija, Laitinen, Risto S.   +4 more
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A Combined Halogen‐ and Chalcogen‐Bonding Organocatalyst

Advanced Synthesis & Catalysis, 2023
AbstractApplications of both halogen and chalcogen bonding in organocatalysis are by now well established with various examples. However, the combination of both interactions within one catalyst is currently unknown. Herein, we describe the synthesis of such a mixed chalcogen‐ and halogen‐bond donor and present a first indication of its catalytic ...
Dhananjoy Pal, Tim Steinke, Lukas Vogel, Elric Engelage, Sascha Heinrich, Dana Kutzinski, Stefan M. Huber   +6 more
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Enantioseparation of 5,5′-Dibromo-2,2′-dichloro-3-selanyl-4,4′-bipyridines on Polysaccharide-Based Chiral Stationary Phases: Exploring Chalcogen Bonds in Liquid-Phase Chromatography

Molecules, 2021
The chalcogen bond (ChB) is a noncovalent interaction based on electrophilic features of regions of electron charge density depletion (σ-holes) located on bound atoms of group VI.
Paola Peluso, Alessandro Dessì, Roberto Dallocchio, Barbara Sechi, Carlo Gatti, Bezhan Chankvetadze, Victor Mamane, Robin Weiss, Patrick Pale, Emmanuel Aubert, Sergio Cossu   +10 more
doaj   +1 more source

Chalcogen Bond versus Weak Hydrogen Bond: Changing Contributions in Determining the Crystal Packing of [1,2,5]-Chalcogenadiazole-Fused Tetracyanonaphthoquinodimethanes

Organic Materials, 2021
The crystal structures of a series of tetracyanonaphthoquinodimethanes fused with a selenadiazole or thiadiazole ring revealed that their molecular packing is determined mainly by two intermolecular interactions: chalcogen bond (ChB) and weak hydrogen ...
Yusuke Ishigaki, Kota Asai, Takuya Shimajiri, Tomoyuki Akutagawa, Takanori Fukushima, Takanori Suzuki   +5 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