Fluoride Anion Chelation by a Bidentate Stibonium-Borane Lewis Acid Academic Article

abstract

• The stibonium-borane [o-(Ph2MeSb)(Mes2B)C 6H4]+ (4+) has been synthesized and isolated as a triflate salt. Competition experiments carried out with [o-(Ph2MeP)(Mes2FB)C6H4] indicate that 4+ exhibits a much higher fluoride affinity than its lighter phosphorus congener. Structural studies show that the higher fluoride affinity of 4+ is correlated to the Lewis acidity of the stibonium center, which engages the boron-bound fluoride anion in the formation of a B-FSb bridge. These results illustrate that the Lewis acidity of main-group onium ions increases as the group is descended. 2011 American Chemical Society.

authors

• Gabbai, Francois

published proceedings

• ORGANOMETALLICS

altmetric score

• 2

author list (cited authors)

• Wade, C. R., & Gabbai, F. P.

citation count

• 82

complete list of authors

• Wade, Casey R||Gabbaii, Francois P

publication date

• September 2011

publisher

• American Chemical Society (ACS)  Publisher

published in

• Organometallics  Journal

keywords

• 34 Chemical Sciences
• 3402 Inorganic Chemistry

Digital Object Identifier (DOI)

• 10.1021/om200499y

start page

• 4479

end page

• 4481

volume

• 30

issue

• 17

URL

• http://dx.doi.org/10.1021/om200499y