When good coordination is achieved between the donor and acceptor, hydrogen bonds are formed between the two atoms, between the atom and the group, or between the two groups. Moreover, the strength provided by hydrogen bonds is low compared to that of most covalent bonds, providing the basis...
Hydrogen bonds: Hydrogen bonds are formed as a result of the attractive force occurring between a hydrogen atom which is already covalently bonded to a very electronegative atom like oxygen, fluorine, or nitrogen and another very electronegative atom like those. This other atom can be oxyg...
Hydrogen bonds are intermediate in terms of strength and length when compared to van der waal's forces and covalent bonds. A hydrogen bond is mainly formed between a donor atoms such as an amine, which acts as a ligand, or a lewis base and acceptor atom like carboxylic acid. The larger ...
How are hydrogen bonds formed?Question:How are hydrogen bonds formed?Hydrogen:Hydrogen is one of the most prominent gases which is formed at the time of the evolution of the earth. It is not present in molecular form. Hydrogen is the most abundant gas found on the earth's surface.Answer...
In all complexes, a strong C–F⋯H–F halogen–hydrogen bond is formed. For the cases n = 2 and n = 3, blue-shifting C–H⋯F–H hydrogen bonds are formed additionally. Blue shifts are, however, encountered for all C–H stretching vibrations of the ...
(Chemistry) a weak chemical bond between an electronegative atom, such as fluorine, oxygen, or nitrogen, and a hydrogen atom bound to another electronegative atom. Hydrogen bonds are responsible for the properties of water and many biological molecules ...
In our model, the H-bonds are formed between the O(2)-atoms on different x-y planes along the curdlan helix, hence the H-bonds are not perpendicular to the helix axis. The new H-bonds are connected along the helix, traversing three curdlan chains to make a left-handed helix. ...
A hydrogen bond tends to be stronger thanvan der Waals forces, but weaker thancovalent bondsorionic bonds. It is about 1/20th (5%) the strength of the covalent bond formed between O-H. However, even this weak bond is strong enough to withstand slight temperature fluctuation. ...
In particular, we focus on the effect of axle substitution on the hydrogen bonds that are formed between axle and wheel. Two types of pseudorotaxanes are studied: one with the substituent affecting mostly the axle's carbonyl group and one with the effect influencing primarily the amide NH ...
Arguments, based on the Kirkwood-Buff theory of solutions, are given in favor of the contention that in liquid water, a simple non-polar solute may increase the average number of hydrogen bonds. Furthermore, this effect is likely to be unique to aqueous fluids....