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Trapping of transient, heavy pnictogen-centred biradicals
1Institut für Chemie, Universität Rostock, A.-Einstein-Str. 3a, 18059 Rostock, Germany. axel.schulz@uni-rostock.de.
Abstract:
Since the heavy biradicals [E(μ-NTer)]2 (E = Sb, Bi) are only of fleeting existence in solution, they were generated in situ and trapped by [2 + 2] addition reactions utilizing alkynes such as tolan (Ph-C[triple bond, length as m-dash]C-Ph). The structure, biradical character and bonding of [E(μ-NTer)]2 biradicals as well as their addition products are discussed on the basis of computations and experimental data.
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