Results 11 to 20 of about 84,584 (328)

Halogen-bonded shape memory polymers

open access: yesNature Communications, 2022
Halogen bonding is widely adopted in organic synthesis and supramolecular crystal engineering but application of halogen bonding in the design of stimuli-responsive materials is challenging.
Hongshuang Guo   +6 more
doaj   +5 more sources

“Anti-Electrostatic” Halogen Bonding [PDF]

open access: goldAngewandte Chemie International Edition, 2020
Halogen bonding (XB) is often described as being driven predominantly by electrostatics, and thus adducts between anionic XB donors (halogen-based Lewis acids) and anions seem counter­intuitive. Such “anti-electrostatic” XBs have been predicted theoretically, but there are currently no experimental examples based on organic XB donors. Herein, we report
Jana M. Holthoff   +3 more
openalex   +5 more sources

Principles and Applications of CF2X Moieties as Unconventional Halogen Bond Donors in Medicinal Chemistry, Chemical Biology, and Drug Discovery. [PDF]

open access: greenJ Med Chem, 2023
Vaas S   +11 more
europepmc   +3 more sources

Activation of a Metal-Halogen Bond by Halogen Bonding. [PDF]

open access: yesAngew Chem Int Ed Engl, 2020
Abstract In recent years, the non‐covalent interaction of halogen bonding (XB) has found increasing application in organocatalysis. However, reports of the activation of metal‐ligand bonds by XB have so far been limited to a few reactions with elemental iodine or bromine. Herein, we present the activation of metal‐halogen bonds by two
Wolf J   +7 more
europepmc   +6 more sources

Halogen-Bonded Driven Tetra-Substituted Benzene Dimers and Trimers: Potential Hosts for Metal Ions

open access: yesSci, 2022
Cyclic dimers and trimers of tetra-substituted benzenes, ((HOOC)2-C6H2-(NHI)2), are selected as convenient model systems for investigating NI…O=C halogen bond strength and cooperativity. The four substituents in benzene are chosen so that two of them act
Rubén D. Parra
doaj   +1 more source

Intermolecular Halogen Bond Detected in Racemic and Optically Pure N-C Axially Chiral 3-(2-Halophenyl)quinazoline-4-thione Derivatives

open access: yesMolecules, 2022
The halogen bond has been widely used as an important supramolecular tool in various research areas. However, there are relatively few studies on halogen bonding related to molecular chirality. 3-(2-Halophenyl)quinazoline-4-thione derivatives have stable
Ryosuke Matsui   +7 more
doaj   +1 more source

The Amine Group as Halogen Bond Acceptor in Cocrystals of Aromatic Diamines and Perfluorinated Iodobenzenes

open access: yesCrystals, 2021
In order to study the proclivity of primary amine groups to act as halogen bond acceptors, three aromatic diamines (p-phenylenediamine (pphda), benzidine (bnzd) and o-tolidine (otol)) were cocrystallised with three perfluorinated iodobenzenes (1,4 ...
Erik Uran   +4 more
doaj   +1 more source

Controlling Topology within Halogen-Bonded Networks by Varying the Regiochemistry of the Cyclobutane-Based Nodes

open access: yesMolecules, 2021
The formation of a pair of extended networks sustained by halogen bonds based upon two regioisomers of a photoproduct, namely rctt-1,3-bis(4-pyridyl)-2,4-bis(phenyl)cyclobutane (ht-PP) and rctt-1,2-bis(4-pyridyl)-3,4-bis(phenyl)cyclobutane (hh-PP), that ...
Taylor J. Dunning   +3 more
doaj   +1 more source

Astatine Facing Janus: Halogen Bonding vs. Charge-Shift Bonding

open access: yesMolecules, 2021
The nature of halogen-bond interactions was scrutinized from the perspective of astatine, potentially the strongest halogen-bond donor atom. In addition to its remarkable electronic properties (e.g., its higher aromaticity compared to benzene), C6At6 can
Serigne Sarr   +4 more
doaj   +1 more source

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