Journal ArticleDOI
The hydrogen bond in the solid state.
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The hydrogen bond is the most important of all directional intermolecular interactions, operative in determining molecular conformation, molecular aggregation, and the function of a vast number of chemical systems ranging from inorganic to biological.Abstract:
The hydrogen bond is the most important of all directional intermolecular interactions. It is operative in determining molecular conformation, molecular aggregation, and the function of a vast number of chemical systems ranging from inorganic to biological. Research into hydrogen bonds experienced a stagnant period in the 1980s, but re-opened around 1990, and has been in rapid development since then. In terms of modern concepts, the hydrogen bond is understood as a very broad phenomenon, and it is accepted that there are open borders to other effects. There are dozens of different types of X-H.A hydrogen bonds that occur commonly in the condensed phases, and in addition there are innumerable less common ones. Dissociation energies span more than two orders of magnitude (about 0.2-40 kcal mol(-1)). Within this range, the nature of the interaction is not constant, but its electrostatic, covalent, and dispersion contributions vary in their relative weights. The hydrogen bond has broad transition regions that merge continuously with the covalent bond, the van der Waals interaction, the ionic interaction, and also the cation-pi interaction. All hydrogen bonds can be considered as incipient proton transfer reactions, and for strong hydrogen bonds, this reaction can be in a very advanced state. In this review, a coherent survey is given on all these matters.read more
Citations
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Weak interactions modulating the dimensionality in supramolecular architectures in three new nickel(II)-hydrazone complexes, magnetostructural correlation, and catalytic potential for epoxidation of alkenes under phase transfer conditions.
Dipali Sadhukhan,Aurkie Ray,Guillaume Pilet,Corrado Rizzoli,Georgina M. Rosair,Carlos J. Gómez-García,Sandra Signorella,Sebastián Bellú,Samiran Mitra +8 more
TL;DR: Three different ONO donor acetyl hydrazone Schiff bases have been synthesized from the condensation of acetic hydrazide with three different carbonyl compounds and all complexes are proved to be efficient catalysts for the epoxidation of alkenes by NaOCl under phase transfer condition.
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Excited-State Intramolecular Proton Transfer in Imide Compounds and its Application to Control the Emission Colors of Highly Fluorescent Polyimides
TL;DR: In this paper, a new molecular design concept for colorless and multicolor light-emitting polyimides (PIs) based on excited-state proton transfer is proposed.
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NH4[BPO4F]: a novel open-framework ammonium fluorinated borophosphate with a zeolite-like structure related to gismondine topology.
TL;DR: The title compound, synthesized in a water-free flux under mild conditions (513 K in autoclaves), exhibits a zeolite-like and chiral open-framework related to gismondine (GIS).
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Synthesis and Structure of 1-D Heterometallic Thiocyanato-Bridged CuIIGdIII Polymers with Ferromagnetic Properties
TL;DR: In this article, the synthesis and the design of solid-state architectures with ferromagnetic ordering is one of the major challenges in magnetochemistry, and the synthesis, crystal structure and magnetic properties of one heterometallic coordination polymer and one hydrogen-bonded polymer, which are based on the CuII-GdIII core, on thiocyanate ligands and on water molecules.
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A highly active protonated tetranuclear peroxotungstate for oxidation with hydrogen peroxide.
TL;DR: 1-catalyzed selective oxidation of various kinds of alkenes, sulfides, amines, and a silane under almost stoichiometric conditions is reported and shows the highest catalytic activity reported to date for epoxidation of cyclooctene with H2O2.
References
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Journal ArticleDOI
Intermolecular interactions from a natural bond orbital, donor-acceptor viewpoint
Journal ArticleDOI
Patterns in Hydrogen Bonding: Functionality and Graph Set Analysis in Crystals
TL;DR: In this article, a review of the most promising systematic approaches to resolving this enigma was initially developed by the late M. C. Etter, who applied graph theory to recognize, and then utilize, patterns of hydrogen bonding for the understanding and design of molecular crystals.
Book
An Introduction to Hydrogen Bonding
TL;DR: In this paper, the authors discuss the properties of strong and moderate hydrogen bonds in biological molecules and include inclusion of inclusion compounds in the graph set theory of graph set theories, which is used in this paper.