Phenyl Substituted ditelluro-imidodiphosphinate complexes of iron, nickel, palladium and platinum, and their pyrolysis Studies Generating metal tellurides
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Date
2019-01-10
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Publisher
Elsevier
Abstract
The tellurium complexes M[N(PPh2Te)2]n (M = Fe (1), Ni (2), Pd (3), Pt (4) and n = 2 or 3) have been prepared
using the ditellurido anions [N(PPh2Te)2] and their ability to generate tellurides was investigated
by pyrolysis in a quartz glass tube, under vacuum at 500 C for 90 min. The products were characterised
by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), energy dispersive analysis of Xrays
(EDAX) and X-ray photoelectron spectroscopy (XPS). The XRD revealed an orthorhombic phase for
the metal telluride from 1, while the hexagonal phase was observed for tellurides from 2, 3 and 4 respectively.
Magnetic measurements on FeTe2 (from 1) indicated an antiferromagnetic sample with a transition
temperature at 75 K.
Description
Deposition of Metal tellurides from tellurium complexes of transition metals.
Keywords
Metal Tellurides, Pyrolysis, Antiferromagnetic, Imidodiphsosphinate ligands, Single-Source Precursors, XPS