Boranes

boron hydridesboraneboron
Boranes is the name given to the class of synthetic hydrides of boron with generic formula B x H y.wikipedia
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Hydride

metal hydridemetal hydrideshydrides
Boranes is the name given to the class of synthetic hydrides of boron with generic formula B x H y.
Some hydrides, e.g. boron hydrides, do not conform to classical electron-counting rules and the bonding is described in terms of multi-centered bonds, whereas the interstitial hydrides often involve metallic bonding.

Cluster chemistry

clusterclusterscluster compound
The boranes belong to the class of cluster compounds, which have been the subject of developments in chemical bonding theory.
Clusters of boron are boranes such as pentaborane and decaborane.

Boron

Bboron-10 10 B
Boranes is the name given to the class of synthetic hydrides of boron with generic formula B x H y.
The boranes (boron hydrogen compounds) and similar gaseous compounds are quite poisonous.

Three-center two-electron bond

3-center-2-electron bond3-center 2-electron bondelectron-deficient compound
An extended version of the 3c–2e bond model features heavily in cluster compounds described by the polyhedral skeletal electron pair theory, such as boranes and carboranes.

Carborane

carboranesboron-containing ringscarbo-borane
Reaction of a borane with an alkyne can produce a carborane; the icosahedral closo-carboranes C 2 B 10 H 12, are particularly stable.
Like many of the related boron hydrides, these clusters are polyhedra or fragments of polyhedra, and are similarly classified as closo-, nido-, arachno-, hypho-, etc. based on whether they represent a complete (closo-) polyhedron, or a polyhedron that is missing one (nido-), two (arachno-), three (hypho-), or more vertices.

Pyrophoricity

pyrophoricburn in contact with aircatch fire when exposed to air
Some lower boranes are pyrophoric in air and react with water.

Chemical bond

bondbondschemical bonds
The boranes belong to the class of cluster compounds, which have been the subject of developments in chemical bonding theory.

Ion

cationanionions
Many of the related anionic hydridoborates have also been synthesized.

Alfred Stock

Stock, Alfred
Alfred Stock created the glass vacuum line, now known as a Schlenk line, for synthesis and handling.

Schlenk line

SchlenkVacuum gas manifoldvacuum-gas manifold
Alfred Stock created the glass vacuum line, now known as a Schlenk line, for synthesis and handling.

Nobel Prize

NobelNobel laureateNobel Prizes
Lipscomb was awarded the Nobel prize in Chemistry in 1976 for his achievements in this field.

Christopher Longuet-Higgins

H. Christopher Longuet-HigginsLonguet-HigginsH. C. Longuet-Higgins
The correct structure of diborane was predicted by H. Christopher Longuet-Higgins 5 years before its determination.

Uranium borohydride

Interest in boranes increased during World War II due to the potential of uranium borohydride for enrichment of the uranium isotopes.

Hermann Irving Schlesinger

H. I. SchlesingerHermann I. SchlesingerH. I. Schlessinger
In the US, a team led by Schlesinger developed the basic chemistry of the boron hydrides and the related aluminium hydrides.

Reagent

reactantreagentsreactants
Although uranium borohydride was not utilized for isotopic separations, Schlesinger's work laid the foundation for a host of boron hydride reagents for organic synthesis, most of which were developed by his student Herbert C. Brown.

Organic synthesis

synthesissynthesizedsynthetic
Although uranium borohydride was not utilized for isotopic separations, Schlesinger's work laid the foundation for a host of boron hydride reagents for organic synthesis, most of which were developed by his student Herbert C. Brown.

Herbert C. Brown

Herbert Charles BrownH.C. BrownHerbert Brown
Although uranium borohydride was not utilized for isotopic separations, Schlesinger's work laid the foundation for a host of boron hydride reagents for organic synthesis, most of which were developed by his student Herbert C. Brown.

IUPAC nomenclature of chemistry

IUPAC nomenclatureIUPAC namenomenclature
The International Union of Pure and Applied Chemistry rules for systematic naming is based on a prefix denoting a class of compound, followed by the number of boron atoms and finally the number of hydrogen atoms in parentheses.

Chemical nomenclature

chemical nameIUPAC nomenclaturenomenclature
The International Union of Pure and Applied Chemistry rules for systematic naming is based on a prefix denoting a class of compound, followed by the number of boron atoms and finally the number of hydrogen atoms in parentheses.

William Lipscomb

William N. LipscombWilliam N. Lipscomb, Jr.William Nunn Lipscomb
The very reactive nature of the lower boranes meant that crystal structure determination was impossible before William Lipscomb developed the requisite techniques.

Four-center two-electron bond

A recent development is four-center two-electron bond.