Borane carbonyl is the
inorganic compound with the formula H
3BCO. This colorless gas is the
adduct
An adduct (from the Latin ''adductus'', "drawn toward" alternatively, a contraction of "addition product") is a product of a direct addition of two or more distinct molecules, resulting in a single reaction product containing all atoms of all co ...
of
borane
Trihydridoboron, also known as borane or borine, is an unstable and highly reactive molecule with the chemical formula . The preparation of borane carbonyl, BH3(CO), played an important role in exploring the chemistry of boranes, as it indicated ...
and
carbon monoxide
Carbon monoxide (chemical formula CO) is a colorless, poisonous, odorless, tasteless, flammable gas that is slightly less dense than air. Carbon monoxide consists of one carbon atom and one oxygen atom connected by a triple bond. It is the simple ...
. It is usually prepared by combining borane-ether complexes and CO. The compound is mainly of theoretical and pedagogical interest. It reacts with aqueous base to give boranocarbonate H
3BCO
22−. Bond distances are B−C, 1.529; C−O, 1.140; 1.194 Å. The H−B−H angle is 113.7°. The CO vibrational band is at 2165 cm
−1, 22 cm
−1 higher than that of free CO.
Experimental data
Enthalpy of vaporization
Vibrational levels (cm−1)
![Bh3co](https://upload.wikimedia.org/wikipedia/commons/d/d9/Bh3co.gif)
vibrational zero-point energy: 7826.5 cm
−1 (from fundamental vibrations)
Rotational Constants (cm−1)
Geometric Data
Point Group C3v
Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Cartesians
Atom - Atom Distances
Distances in Å
Experimental Bond Angles
(degrees) from cartesians
Bond descriptions
Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Connectivity
Electronic energy levels (cm−1)
Ionization Energies (eV)
Dipole, Quadrupole and Polarizability
Electric dipole moment
Electric quadrupole moment
References
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, -
, webbook
, NIST Chemistry Webbook (http://webbook.nist.gov/chemistry)
, 10.18434/T4D303
References
Boranes
Carbonyl complexes
Organoboron compounds