Encyclopedia of Metalloproteins

2013 Edition
| Editors: Robert H. Kretsinger, Vladimir N. Uversky, Eugene A. Permyakov


  • Bruce S. BurnhamEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-1533-6_442



Amine-boranes are complexes of a Lewis acid borane (e.g., BH3, BH2CN, BH2COOH, BH2COOCH3, BH2CONHCH2CH3) and an amine (e.g., R,R′,R″N) where the lone electron pair on the nitrogen atom forms a coordinate covalent bond by donating both of its electrons into the vacant orbital of borane.


Chemistry of Boron

Boron is in column three of the periodic table and has three valence electrons. This leaves the boron atom with a vacant orbital capable of accepting a pair of electrons acting as a Lewis acid. Typically, molecules with atoms containing lone pairs of electrons will form complexes with boron such as nitrogen, oxygen, and phosphorus (Spielvogel 1988).

When coordinated to amino groups, the borane becomes tetrahedral making it isosteric to a tetrahedral carbon atom. Since the borane is more...

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© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Department of Chemistry, Biochemistry, and PhysicsRider UniversityLawrencevilleUSA