Stable derivatives 4 and 5 of the elusive 1,2-ditellurolane (3) have been synthesized. Ditellurolane 4 was subjected to X-ray crystallographic analysis. The unusual blue color of these molecules has been attributed to the small dihedral angle associated with the rigid ring. The most remarkable reaction of these systems is the reversible monoprotonation of the Te-Te moiety.
Oxidative addition of cyclic 1-oxa-5,6-ditelluraspirooctane to platinum(0) complexes
作者:Andreas Wagner、Ludmila Vigo、Raija Oilunkaniemi、Risto S. Laitinen、Wolfgang Weigand
DOI:10.1039/b802308e
日期:——
6-ditelluraspirooctane, Te(2)C(5)H(8)O, to bis(triphenylphosphine)(norbornene)platinum(0), [Pt(PPh(3))(2)(eta(2)-nb)], and to [1,8-bis(diphenylphosphino)naphthalene](norbornene)platinum(0), [Pt(dppn)(eta(2)-nb)], lead to the formation of dinuclear and mononuclear tellurolato platinum(ii) complexes, respectively, as a consequence of Te-Te bond cleavage; no Te-C bond cleavage was observed.