Hydrogen bond between two water moleculesīecause of the extensive network of hydrogen bonds between molecules, HF has a In electronegativity between H and F, a hydrogen bond occurs between the hydrogen atom of a molecule and the Hydrogen fluoride is composed of HF molecules. Hydrogen atoms in white, Fluorine atoms in green Polar substances like hydrogen fluoride and water. All together, they play a central role in determining the chemical and physical properties of A single hydrogen bond is relatively weak: usually, however, a high number of suchīonds forms simultaneously. The hydrogen atom is aligned with the two electronegative atoms. Hydrogen bond is a directional bond, meaning that it is stronger when It interacts with the negative end of a neighboring molecule,įorming a "bridge" between the two molecules. The hydrogen atom is the positive end of the molecule. Δ +) on one side and a partial negative charge (δ -) on the opposite The molecule, though it is electrically neutral, has a partial positive charge (indicated as When a hydrogen atom is bound to a strongly electronegative atom, a charge The bond isĬommonly represented as a dotted line between the hydrogen atom and the other electronegative atom, as shown in theįigure. ![]() ![]() Hydrogen bond Hydrogen bond is a special type of interaction between molecules: it forms wheneverĪ hydrogen atom, bound to a strongly electronegative (able to attract electrons) atom, at the same time interacts withĪnother strongly electronegative atom having a lone pair of electrons, like oxygen, nitrogen or fluorine. CONTENTS | Comments and contacts | Credits
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