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Non-conventional hydrogen bonds
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In this paper, the authors define the hydrogen bond as an attractive interaction between two molecular moieties in which at least one of them contains a hydrogen atom that plays a fundamental role.Abstract:
Hydrogen bonds (HBs) are the most important ‘weak’ interactions encountered in solid, liquid and gas phases. The HB can be defined as an attractive interaction between two molecular moieties in which at least one of them contains a hydrogen atom that plays a fundamental role. Classical HBs correspond to those formed by two heteroatoms, A and B, with a hydrogen atom bonded to one of them and located approximately in between (A–H···B). Recently, knowledge of the number of functional groups which act as hydrogen bond donors or acceptors has increased considerably and most of these new groups are discussed.read more
Citations
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Journal ArticleDOI
The hydrogen bond in the solid state.
TL;DR: 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.
Journal ArticleDOI
The Halogen Bond
Gabriella Cavallo,Pierangelo Metrangolo,Pierangelo Metrangolo,Roberto Milani,Tullio Pilati,Arri Priimagi,Giuseppe Resnati,Giancarlo Terraneo +7 more
TL;DR: The specific advantages brought up by a design based on the use of the halogen bond will be demonstrated in quite different fields spanning from material sciences to biomolecular recognition and drug design.
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Behavior of Ylides Containing N, O, and C Atoms as Hydrogen Bond Acceptors
TL;DR: In this paper, the formation of low-barrier hydrogen bonds between ylides and different neutral molecules was studied, and the analysis of the protonation energies and the optimized geometries, interaction energies, and characteristics of the electron density of the complexes showed that these ylsides are very good HB acceptors, forming stable complexes even with weak HB donors.
Journal ArticleDOI
Binding Mechanisms in Supramolecular Complexes
TL;DR: The aim of this Review is to describe the crucial interaction mechanisms in context, and thus classify the entire subject of supramolecular chemistry.
References
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Journal ArticleDOI
Inverse Hydrogen-Bonded Complexes
TL;DR: In this paper, a theoretical study of the linear and multiple approximation in a series of complexes formed by molecules with electron-rich hydrogen atoms has been carried out, where the interaction energy (taking into account the zero-point energy and the basis set superposition error), the atomic charges, and the electron density of the monomers and complexes have been evaluated at the MP2/6-311++G** level.
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Carbenes and Silylenes as Hydrogen Bond Acceptors
Ibon Alkorta and,José Elguero +1 more
TL;DR: A theoretical study of the capability of carbenes and silylenes as hydrogen bond acceptors has been carried out in this article, where the topology of the electron density of the HB complexes has been characterized using the AIM methodology.
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Cooperative CC–H ⋯ CC–H interactions: crystal structure of DL-prop-2-ynylglycine and database study of terminal alkynes
TL;DR: In the crystal structure of DL-prop-2-ynylglycine, the alkyne groups formed a zigzag pattern with intermolecular H ⋯ C distances of 2.54 A as discussed by the authors.
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Field effects on dihydrogen bonded systems
TL;DR: In this article, the effect of an external electric field on three different proton equilibrium systems has been studied with ab initio methods, and it has been found that by applying an external field the transfer of H atoms between two heavy atoms is possible.
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T-shaped intermolecular CH ⋯π(CC) interactions in chloroform solvates of gold(I) ethyne complexes
TL;DR: The molecular structures of the chloroform solvates of the ethynediyl digold complexes NpPh2P-Au-CC−Au−CC−CC+Au+PNp2Ph·6CHCl32 have been determined by X-ray techniques.