Results 201 to 210 of about 10,693 (226)
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Enhancing chalcogen bonding by metal coordination
Dalton Transactions, 2022By exploring the CSD in combination with DFT calculations, we demonstrate that chalcogen bonding interactions are strongly enhanced by metal coordination.
Rosa M. Gomila +2 more
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Chemical Society Reviews
This tutorial review will focus on the recently evolved chalcogen bonding catalysis. Emphasis will be given to the basics of non-covalent bonding, chiral chalcogen bonding catalysis, chiral separation, and chalcogen bonding in biomolecules.
Govindasamy Sekar +2 more
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This tutorial review will focus on the recently evolved chalcogen bonding catalysis. Emphasis will be given to the basics of non-covalent bonding, chiral chalcogen bonding catalysis, chiral separation, and chalcogen bonding in biomolecules.
Govindasamy Sekar +2 more
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Chalcogen Bonding Catalysis with Phosphonium Chalcogenide (PCH)
Accounts of Chemical Research, 2023ConspectusThe exploration of new catalysis concepts and strategies to drive chemical reactions is of vital importance for the sustainable development of organic synthesis. Recently, chalcogen bonding catalysis has emerged as a new concept for organic synthesis and has been demonstrated to be an important synthetic tool capable of addressing elusive ...
Zhiguo Zhao, Yao Wang
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Supramolecular Covalence in Bifurcated Chalcogen Bonding
Chemistry – A European Journal, 2017AbstractSupramolecular interactions are generally classified as noncovalent. However, recent studies have demonstrated that many of these interactions are stabilized by a significant covalent component. Herein, for systems of the general structure [MX6]2−:YX2 (M=Se or Pt; Y=S, Se, or Te; X=F, Cl, Br, I), featuring bifurcated chalcogen bonding, it is ...
Pankaj Lochan Bora +4 more
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Chalcogen bonding in materials chemistry
Coordination Chemistry Reviews, 2020Abstract This review examines recent literature in search for evidence of the influence that chalcogen bonding has on the structure and properties of functional materials. Key examples from research on charge transfer salts, neutral heterocyclic free radicals, and paramagnetic coordination compounds are highlighted as intermolecular interactions are ...
Peter C. Ho +3 more
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A World Beyond Hydrogen Bonds?—Chalcogen–Chalcogen Interactions Yielding Tubular Structures
Chemistry – A European Journal, 2003AbstractIt is shown that tubular structures arise in the solid state through close chalcogen–chalcogen (X⋅⋅⋅X) contacts. As examples a variety of cyclic systems containing sulfur and selenium centers is presented. Common to all of them are close contacts between the chalcogen centers of neighboring stacks giving rise to a zigzag or ladder‐type ...
Rolf, Gleiter +2 more
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Experimental evidence of chalcogen bonding at oxygen
Chemical Communications, 2020Ano-nitro-O-aryl oxime was observed to exhibit a short O⋯O contact, which exhibited characteristics consistent with a chalcogen bond.
Thomas Fellowes +2 more
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Supramolecular Capsules: Strong versus Weak Chalcogen Bonding
Angewandte Chemie International Edition, 2018AbstractResorcin[4]arene cavitands containing either 2,1,3‐benzotelluradiazole or 2,1,3‐benzothiadiazole motifs were dimerized to supramolecular capsules by chalcogen bonding. Their respective behavior varied depending on the interaction strength of the chalcogen bonds with Te forming strong interactions and S weak interactions. The tremendous strength
Leslie‐Joana Riwar +4 more
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Topological reaction sites – very strong chalcogen bonds
Phys. Chem. Chem. Phys., 2014The analysis of interactions in complexes of S(CN)2, Se(CN)2, SFCl and SeFCl with F(-) and Cl(-) anions is performed here. The sulphur and selenium atoms act in these complexes as Lewis acid centres interacting with fluorine and chlorine anions. The arrangement of sub-units in complexes is in agreement with the σ-hole concept; particularly it is a ...
Esmail, Alikhani +3 more
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Chalcogen–chalcogen-bond activation by an ambiphilic, doubly reduced organoborane
Tetrahedron, 2019Abstract The 9,10-dimethyl-9,10-dihydro-9,10-diboraanthracene dianion salt Li2[1] instantaneously reacts with the dichalcogens O2(tBu)2, S2Me2, S2(pTol)2, Se2Ph2, and Te2Ph2 under reductive cleavage of the chalcogen–chalcogen bonds to give lithium chalcogenides and neutral 1.
Esther von Grotthuss +4 more
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