This article is about a specific compound. For the class of compounds, see boranes. For the edition of the Hebrew Bible known as BH5, see Biblia Hebraica Quinta.
Borane
Names
IUPAC names
Borane[1]
Systematic IUPAC name
Borane (substitutive)
Trihydridoboron (additive)
Other names
borine
boron trihydride
hydrogen boride
Identifiers
CAS Number
13283-31-3
3D model (JSmol)
Interactive image
ChEBI
CHEBI:30149
ChemSpider
6091
Gmelin Reference
44
PubChem CID
6331
InChI
InChI=1S/BH3/h1H3
Key: UORVGPXVDQYIDP-UHFFFAOYSA-N
SMILES
B
Properties
Chemical formula
BH3
Molar mass
13.83 g·mol−1
Appearance
colourless gas
Conjugate acid
Boronium
Thermochemistry
Std molar entropy (S⦵298)
187.88 kJ mol−1 K−1
Std enthalpy of formation (ΔfH⦵298)
106.69 kJ mol−1
Structure
Point group
D3h
Molecular shape
trigonal planar
Dipole moment
0 D
Related compounds
Related compounds
diborane
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
Borane, also known as borine, is an unstable and highly reactive molecule with the chemical formula BH 3. The preparation of borane carbonyl, BH3(CO), played an important role in exploring the chemistry of boranes, as it indicated the likely existence of the borane molecule.[2] However, the molecular species BH3 is a very strong Lewis acid. Consequently, it is highly reactive and can only be observed directly as a continuously produced, transitory, product in a flow system or from the reaction of laser ablated atomic boron with hydrogen.[3] It normally dimerizes to diborane in the absence of other chemicals.[4]
^"Borane".
^Burg, Anton B.; Schlesinger, H. I. (May 1937). "Hydrides of boron. VII. Evidence of the transitory existence of borine (BH 3): Borine carbonyl and borine trimethylammine". Journal of the American Chemical Society. 59 (5): 780–787. doi:10.1021/ja01284a002.
^Tague, Thomas J.; Andrews, Lester (1994). "Reactions of Pulsed-Laser Evaporated Boron Atoms with Hydrogen. Infrared Spectra of Boron Hydride Intermediate Species in Solid Argon". Journal of the American Chemical Society. 116 (11): 4970–4976. doi:10.1021/ja00090a048. ISSN 0002-7863.
^Carey, Francis A.; Sundberg, Richard J. (2007). Advanced Organic Chemistry: Part B: Reactions and Synthesis (5th ed.). New York: Springer. p. 337. ISBN 978-0387683546.
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