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Peri-substituted phosphorus-tellurium systems-an experimental and theoretical investigation of the P···Te
Andreas Nordheider1, Emanuel Hupf, Brian A Chalmers
1EaStChem School of Chemistry, University of St. Andrews , Fife KY16 9ST, St Andrews, U.K.
Abstract:
A series of peri-substituted phosphorus-tellurium systems R'Te-Acenap-PR2 (R' = Ph, p-An, Nap, Mes, Tip; Acenap = acenaphthene-5,6-diyl (-C12H8); R = (i)Pr, Ph) exhibiting large "through-space" spin-spin coupling constants and the "onset" of three-center four-electron type interactions is presented. The influence of the substituents at the phosphorus and tellurium atoms as well as their behavior upon oxidation (with S, Se) or metal-coordination (Pt, Au) is discussed using NMR spectroscopy, single-crystal X-ray diffraction, and advanced density functional theory studies including NBO, AIM, and ELI-D analyses.
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