Phosphorus, Sulfur and Silicon and the Related Elements p. 1035 - 1044 (2005)
Update date:2022-08-03
Topics:
Laur, Peter H.
Saberi-Niaki, Seyedeh M.
Scheiter, Michael
Hu, Chunhua
Englert, Ulli
Wang, Yuekui
Fleischhauer, Joerg
X-ray structural studies demonstrate that diaryl tellurium diiodides can be constrained by steric factors (ortho-alkyl substituents) to adopt a trigonal pyramidal structure in preference to the expected bisphenoidal structure. DFT calculations are shown to reproduce successfully structural details of the title compounds; they allow one to predict which coordination number should be energetically favored. All compounds are chiral, but the barrier to stereomutation by intra- and intermolecular pathways (60-85 kJmol-1) is rather low. Copyright Taylor & Francis Inc.
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