Results 41 to 50 of about 776,526 (154)
Halogen Bonds Fabricate 2D Molecular Self-Assembled Nanostructures by Scanning Tunneling Microscopy
Crystals, 2020 Halogen bonds are currently new noncovalent interactions due to their moderate strength and high directionality, which are widely investigated in crystal engineering.
Yi Wang, Xinrui Miao, Wenli Deng
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Halogen-bonded shape memory polymers
Nature 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
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A–X⋯σ Interactions—Halogen Bonds with σ-Electrons as the Lewis Base Centre
Molecules, 2021 CCSD(T)/aug-cc-pVTZ//ωB97XD/aug-cc-pVTZ calculations were performed for halogen-bonded complexes. Here, the molecular hydrogen, cyclopropane, cyclobutane and cyclopentane act as Lewis base units that interact through the electrons of the H–H or C–C σ ...
Sławomir J. Grabowski
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Halogen-Bonded [N–I–N]− Complexes with Symmetric or Asymmetric Three-Center–Four-Electron Bonds
, 2023 A series of LH[Z–I–Z] halogen(I) complexes, where Z = saccharinato or phthalimido anions and LH = pyridinium, pyrazinium, tetrabutyl (TBA)- or tetramethylammonium (TMA) cations, were prepared, structurally characterized, and discussed as complexes ...
Shilin Yu (2886167) +13 more
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Synthesis of Halogen Bond Donor Site-Introduced Functional Monomers via Wittig Reaction of Perfluorohalogenated Benzaldehydes: Toward Digitalization as Reliable Strategy in Small Molecule Synthesis [PDF]
, 2023 The Wittig reaction of perfluorohalobenzaldehydes was systematically studied to synthesize 2,3,5,6-tetrafluoro-4-halostyrene (TFXS) as functional monomers bearing halogen bond donor sites. The reaction proceeded efficiently in tetrahydrofuran using 1,1,3,
Takeshi, FUJINAMI +5 more
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Crystals, 2017 Seventeen new halogen-bonded co-crystals characterized by single crystal X-ray analysis are presented from 8 × 4 combinations using methyl-substituted pyridine N-oxides and 1,ω-diiodoperfluoroalkanes. The N−O group in six of 17 co-crystals is monodentate
Rakesh Puttreddy +3 more
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Short X···N Halogen Bonds With Hexamethylenetetraamine as the Acceptor
Frontiers in Chemistry, 2021 Hexamethylenetetramine (HMTA) and N-haloimides form two types of short (imide)X···N and X–X···N (X = Br, I) halogen bonds. Nucleophilic substitution or ligand-exchange reaction on the peripheral X of X–X···N with the chloride of N-chlorosuccinimide lead ...
Goulielmina Anyfanti +9 more
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Halogen bonding as a supramolecular dynamics catalyst
Nature Communications, 2019 The halogen bond is well known for its ability to assemble supramolecules. Here, using NMR experiments, the authors reveal the role of these bonds in dynamic processes, finding that the halogen bond directly catalyzes dynamical rotation in solid ...
Patrick M. J. Szell +2 more
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, 2017 In the present work, the cooperativity between hydrogen bond‒hydrogen bond, halogen bond‒halogen bond and hydrogen bond‒halogen bond in ternary FX…diazine…XF (X = H and Cl) complexes is theoretically investigated.
Mahdiyeh Ranjbar (3210702) +2 more
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Indian Journal of Dental Research, 2011 Purpose: With the introduction of photosensitive (light-activated) restorative materials in orthodontics, various methods have been suggested to enhance the polymerization of the materials used, including use of more powerful light curing devices.
Sujoy Banerjee, Rajlakshmi Banerjee
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