872422-27-0Relevant academic research and scientific papers
Diaryl tellurium dihalides: From Te-tetracoordinated compounds to Te-tricoordinated molecular complexes
Laur, Peter H.,Saberi-Niaki, Seyedeh M.,Scheiter, Michael,Hu, Chunhua,Englert, Ulli,Wang, Yuekui,Fleischhauer, Joerg
, p. 1035 - 1044 (2005)
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.
