Telluroether to Telluroxide Conversion in the Coordination Sphere of a Metal: Oxidation-Induced Umpolung of a TeAu Bond Academic Article uri icon

abstract

  • 2014 American Chemical Society. While Ph2Te is oxidized into Ph2TeCl2 in the presence of (tht)AuCl (tht = tetrahydrothiophene), reaction of (o-(Ph2P)C6H4)2Te (LTeP2) with the same gold reagent affords the complex LTeP2AuCl (1). Upon reaction with Ph3P, this complex is converted into [LTeP2AuPPh3][Cl] ([2][Cl]). Complex 1 also reacts with H2O2 to afford the telluroxide gold chloride complex (o-(Ph2P)C6H4)2Te( - O)AuCl (3). The three new complexes have been fully characterized. Their crystal structures indicate the presence of a Te-Au bond with lengths of 2.874(4), 2.937(2), and 2.9864(5) , for 1, [2][Cl], and 3, respectively. Natural bond orbital analysis shows that oxidation of 1 into 3 results in an umpolung of the Te-Au bond which switches from TeAu in 1 to Te Au in 3. These results show that the telluroxide moiety of 3 acts as a Z-type ligand.

published proceedings

  • Organometallics

altmetric score

  • 2.1

author list (cited authors)

  • Yang, H., Lin, T., & Gabba, F. P.

citation count

  • 22

complete list of authors

  • Yang, Haifeng||Lin, Tzu-Pin||Gabbaı̈, François P

publication date

  • September 2014