Homoleptic Pnictogen-Chalcogen Coordination Complexes
Dube, J., Hänninen, M. M., Dutton, J., Tuononen, H., & Ragogna, P. (2012). Homoleptic Pnictogen-Chalcogen Coordination Complexes. Inorganic Chemistry, 51(16), 8897-8903. https://doi.org/10.1021/ic300892p
Published inInorganic Chemistry
© 2012 American Chemical Society. This is a final draft version of an article whose final and definitive form has been published by ACS. Published in this repository with the kind permission of the publisher.
The synthesis and structural characterization of dicationic selenium and tellurium analogues of the carbodiphosphorane and triphosphenium families of compounds are reported. These complexes, [Ch(dppe)][OTf]2 [Ch = Se, Te; dppe = 1,2-bis(diphenylphosphino)ethane; OTf = trifluoromethanesulfonate], are formed using [Ch]2+ reagents via a ligand-exchange protocol and represent extremely rare examples of homoleptic pnictogen → chalcogen coordination complexes. The corresponding arsenic compounds were also prepared, [Ch(dpAse)][OTf]2 [Ch = Se, Te; dpAse = 1,2-bis(diphenylarsino)ethane], exhibiting the first instance of an arsenic → chalcogen dative bond. The electronic structures of these unique compounds were determined and compared to previously reported chalcogen dications.
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