Diboryne

A diboryne in chemistry is a chemical compound containing a boron–boron triple bond. Such compounds are of fundamental importance in the study of chemical bonding, though only few have been reported. A diboryne stabilized by two carbon monoxide groups, (OC)B≡B(CO), was reported isolated in matrix isolation in 2002.[1] A diboryne stable at room temperature with two N-heterocyclic carbene (NHC) units was reported in 2012.[2] In terms of qualitative molecular orbital theory, the B2 molecule itself is expected to have a single bond, but with NHC ligands, the third excited state yields a triple bond.[3]

See also

References

  1. ↑ Zhou, M; Tsumori, N; Li, Z; Fan, K; Andrews, L; Xu, Q (2002). "OCBBCO: A neutral molecule with some boron-boron triple bond character". Journal of the American Chemical Society. 124 (44): 12936–7. doi:10.1021/ja026257+. PMID 12405806.
  2. ↑ Braunschweig, H.; Dewhurst, R. D.; Hammond, K.; Mies, J.; Radacki, K.; Vargas, A. (2012). "Ambient-Temperature Isolation of a Compound with a Boron-Boron Triple Bond". Science. 336 (6087): 1420–2. doi:10.1126/science.1221138. PMID 22700924.
  3. ↑ Holzmann, N.; Stasch, A.; Jones, C.; Frenking, G. (2011). "Structures and Stabilities of Group 13 Adducts...". Chemistry: A European Journal. 17 (1521-3765): 13517. doi:10.1002/chem.201101915.
This article is issued from Wikipedia - version of the 11/19/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.