Bis(6-Diphenylphosphinoacenaphth-5-yl)Telluride as a Ligand toward Manganese and Rhenium Carbonyls

Molecules. 2018 Oct 29;23(11):2805. doi: 10.3390/molecules23112805.

Abstract

The reaction of the previously known bis(6-diphenylphosphinoacenaphthyl-5-)telluride (6-Ph₂P-Ace-5-)₂Te (IV) with (CO)₅ReCl and (CO)₅MnBr proceeded with the liberation of CO and provided fac-(6-Ph₂P-Ace-5-)₂TeM(X)(CO)₃ (fac-1: M = Re, X = Cl; fac-2: M = Mn, X = Br), in which IV acts as bidentate ligand. In solution, fac-1 and fac-2 are engaged in a reversible equilibrium with mer-(6-Ph₂P-Ace-5-)₂TeM(X)(CO)₃ (mer-1: M = Re, X = Cl; mer-2: M = Mn, X = Br). Unlike fac-1, fac-2 is prone to release another equivalent of CO to give (6-Ph₂P-Ace-5-)₂TeMn(Br)(CO)₂ (3), in which IV serves as tridentate ligand.

Keywords: ligand design; manganese; rhenium; tellurium; transition metal complex.

MeSH terms

  • Chemistry Techniques, Synthetic
  • Crystallography, X-Ray
  • Ligands
  • Magnetic Resonance Spectroscopy
  • Manganese / chemistry*
  • Molecular Structure
  • Organometallic Compounds / chemical synthesis
  • Organometallic Compounds / chemistry*
  • Rhenium / chemistry*
  • Tellurium / chemistry

Substances

  • Ligands
  • Organometallic Compounds
  • Manganese
  • Rhenium
  • Tellurium