Synthesis and molecular structures of complexes of TlBrI 2 with pyridine N-oxide and some substituted pyridine N-oxides

Abstract

The following compounds, TlBrI 2(PyO) 2, TlBrI 2(2-PicO) 2, TlBrI 2(3-PicO) 2, TlBrI 2(4-PicO) 2, TlBrI 2(4-Cl-PyO) 2, TlBrI 2(4-CN-PyO) 2, TlBrI 2(4-NO 2-PyO) 2 and TlBrI 2(4-CH 3O-PyO) 2, have been prepared and characterized by elemental analysis. The solids behave as non-electrolytes in acetonitrile solution and are monomers in benzene. Vibrational (IR and Raman) spectra suggest that the most probable structure is that of a trigonal bipyramid with the halogen atoms in equatorial positions and the two ligands in axial positions.