Journal ArticleDOI
The hydrogen bond in the solid state.
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TLDR
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
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The nature and energy characteristics of intramolecular hydrogen bonds in crystals
TL;DR: In this article, the results of systematic X-ray diffraction studies of the electron density distribution in the crystals of compounds with strong intramolecular hydrogen bonds N-H...O, O-H...O, N- H...N, and N H...S are discussed.
Journal ArticleDOI
Room-temperature ice growth on graphite seeded by nano-graphene oxide.
TL;DR: It is shown that a sprinkle of graphene oxide nanoflakes (nanoGOs) is effective in condensing water nanodroplets and seeding ice epitaxy on graphite at ambient conditions and that ice nucleation and growth can be influenced by modifying the functional groups of nanoGO and by intermolecular hydrogen-bonding between nanoGOs.
Journal ArticleDOI
Quantifying Aromaticity at the Molecular and Supramolecular Limits: Comparing Homonuclear, Heteronuclear, and H-Bonded Systems.
TL;DR: The term "H-bonded aromaticity" is proposed for such closed-loop weakly delocalized systems that exhibit nonlocal polarizations across the full-perimeter of the ring that lead to aromaticity.
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Mononuclear, Tetra-, Penta- 3d Molecular Clusters Based on the Variability of SS-1,2-Bis(1H-benzimidazole-2-yl)-1,2-ethanediol Ligand Arising from Hydroponic and Hydrothermal Conditions: Structure, Crystal Growth, and Magnetic Properties
TL;DR: In this paper, the crystal structures of four compounds Co(SS-H2bzimed-H)2·CH3OH·2H2O (1), Zn4(SS)-H2-Bzimmed-H(1H-benzimidazole-2-yl)-1,2-ethanediol; Co5(HbZimed)-6Cl4·2.5H 2O (2), Ni5(CoH2H 2.5O)6Cl 4.4H 2
Journal ArticleDOI
Circular Polarized Luminescence of Hydrogen-Bonded Molecular Assemblies of Chiral Pyrene Derivatives
Hayato Anetai,Takashi Takeda,Norihisa Hoshino,Yasuyuki Araki,Takehiko Wada,Shunsuke Yamamoto,Masaya Mitsuishi,Hiromu Tsuchida,Tomoki Ogoshi,Tomoyuki Akutagawa +9 more
TL;DR: The absorption and fluorescence spectra of chiral alkylamide-substituted pyrene derivatives (R-1 and S-1) in the solution phase were consistent with the formation of N−H···O═ hydrogen-bonded helical π-stacked one-dimensional (1D) supramolecules (R1)n and (S-1n)n in methylcyclohexane (MCH), toluene, chloroform (CHCl3), and tetrahydrofuran (THF);
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.