The role of ate complexes in the lithium-sulfur, lithium-selenium and lithium-tellurium exchange reactions

HJ Reich, BÖ Gudmundsson, DP Green…

Index: Reich, Hans J.; Gudmundsson, Birgir Oe.; Green, D. Patrick; Bevan, Martin J.; Reich, Ieva L. Helvetica Chimica Acta, 2002 , vol. 85, # 11 p. 3748 - 3772

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Citation Number: 23

Abstract

Hypervalent ate complexes are presumptive intermediates in the metal-halogen, metal- tellurium, and related exchange reactions. The effect of o, o'-biphenyldiyl vs. diphenyl substitution on formation of tellurium ate complexes was studied by a kinetic technique and by NMR spectroscopy. Only a modest increase in the association constant (Kate) was measured. When Li/M exchanges of o, o'-biphenyldiyl sulfides and selenides were made ...