hydrogen bonding. An especially strong dipole-dipole force between molecules X-H...Y, where X and Y are small electronegative atoms (usually F, N, or O) and ... denotes the hydrogen bond. Hydrogen bonds are responsible for the unique properties of water and they loosely pin biological polymers like proteins and DNA into their characteristic shapes....
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http://antoine.frostburg.edu/chem/senese/101/glossary/h.shtml
A hydrogen bond is the electrostatic attractive interaction between polar molecules, in which hydrogen (H) is bound to a highly electronegative atom, such as nitrogen (N), oxygen (O) or fluorine (F). The name hydrogen bond is something of a misnomer, as it is not a true bond but a particularly strong dipole-dipole attraction, and should not be con...
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http://en.wikipedia.org/wiki/Hydrogen_bond
(from the article `chemical bonding`) The interactions described so far are not limited to molecules of any specific composition. However, there is one important intermolecular ... The forces tending to make like molecules associate are of three kinds. Most important is the hydrogen bond (or bridge), in which a hydrogen atom ... ...i...
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http://www.britannica.com/eb/a-z/h/88
The hydrogen bond is a form of association between an electronegative atom and a hydrogen atom attached to a second, relatively electronegative atom. It is best considered as an electrostatic interaction, heightened by the small size of hydrogen, which permits proximity of the interacting dipoles or charges. Both electronegative atoms are usually (...
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http://www.chem.qmul.ac.uk/iupac/gtpoc/H.html
a strong secondary interatomic bond which exists between a bound hydrogen atom (its unscreened proton) and the electrons of adjacent atoms.
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http://www.chemicalglossary.net/definition/848-Hydrogen_Bond
A bond formed by a hydrogen atom to an electronegative atom, and is denoted X---H-B.
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http://www.chemicalglossary.net/definition/889-Hydrogen_Bond
is a special situation that exists between the hydrogen atom in one molecule (like water) and the oxygen atom in another molecule (like another water molecule). This bond is ten times weaker than the covalent bond, and ten times stronger than the van der
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http://www.chemicalglossary.net/definition/902-HYDROGEN_BOND
A fairly strong dipole-dipole interaction (but still considerably weaker than the covalent or ionic bonds) between molecules containing hydrogen directly bonded to a small, highly electronegative atom, such as N, O, or F.
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http://www.chemistry-dictionary.com/definition/hydrogen+bond.php
A weak chemical force that can operate both within and between certain types of molecule. A hydrogen bond results when a hydrogen atom that is attached to another atom by a covalent bond is also attracted to a neighboring electronegative atom (such as oxygen or nitrogen), either in the same molecule...
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http://www.daviddarling.info/encyclopedia/H/hydrogen_bond.html
The strongest attraction between two dipoles is when one or both of them involves a bond between hydrogen and a strongly electronegative atom, like oxygen, fluorine, or nitrogen. Because hydrogen only has one electron, if it forms a bond with an element that is very keen to grab an electron, it becomes much more positive than an element that has pl...
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http://www.encyclo.co.uk/local/20046
a strong secondary interatomic bond which exists between a bound hydrogen atom (its unscreened proton) and the electrons of adjacent atoms.
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http://www.encyclo.co.uk/local/20089
A relatively weak bond formed between a hydrogen atom (which is covalently bound to a nitrogen or oxygen atom) and a nitrogen or oxygen with an unshared electron pair.
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http://www.encyclo.co.uk/local/20095
A fairly strong dipole-dipole interaction (but still considerably weaker than the covalent or ionic bonds) between molecules containing hydrogen directly bonded to a small, highly electronegative atom, such as N, O, or F.
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http://www.encyclo.co.uk/local/20728
<chemistry> A weak electrostatic link between an electronegative atom (such asoxygen) and a hydrogen atom which is linked covalently to anotherelectronegative atom, hydrogen bonding is what makes water stick toitself. ... (09 Oct 1997) ...
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http://www.encyclo.co.uk/local/20973
a weak, primarily electrostatic, bond between a hydrogen atom bound to a highly electronegative element (such as oxygen or nitrogen) in a given molecule, or part of a molecule, and a second highly electronegative atom in another molecule or in a different part of the same molecule.
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http://www.encyclo.co.uk/local/21001
An intermolecular bond formed with hydrogen.
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http://www.encyclo.co.uk/local/22291
A bond formed by a hydrogen atom to an electronegative atom, and is denoted X---H-B.
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http://www.encyclo.co.uk/visitor-contributions.php
(Learning Modules / Biology / DNA / Glossary) Weak chemical bonds between bases in DNA, the pairs of bases form the 'rungs' of the twisted ladder of DNA and are kept in place by hydrogen bonds.
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(Learning Modules / Chemistry / Polymers) A relatively strong intermolecular attraction. A very delta positive hydrogen atom in one molecule interacts with a lone pair of electrons on an electronegative atom in a neighbouring molecule.
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http://www.encyclo.co.uk/visitor-contributions.php
Type: Term Definitions: 1. a bond arising from the sharing of a hydrogen atom, covalently bound to a strongly electronegative element (N, O, or a halogen), with another strongly electronegative element (N, O, or a halogen). In substances of biologic importance, the most common hydrogen bonds are those in which H links N to O or N; such bonds link p...
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http://www.medilexicon.com/medicaldictionary.php?t=11168
[
n] - a chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond
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http://www.webdictionary.co.uk/definition.php?query=hydrogen%20bond
A weak bond between two atoms (one of which is hydrogen) with partial but opposite electrical charges.
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https://www.encyclo.co.uk/local/21571
a weak, secondary bond between a partially positive hydrogen atom and a partially negative N, O, or F atom. An inter-molecular force of attraction.
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https://www.encyclo.co.uk/local/22434
a type of chemical bond in which a hydrogen atom that has a covalent link with one of the electronegative atoms (F, N, O) forms an electrostatic link with another electronegative atom in the same or another molecule.
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https://www.infoplease.com/dictionary/hydrogen-bond
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