27976-44-9Relevant academic research and scientific papers
Facile one-step synthesis of palladium tellurium alloy nanorods
Mariappan, Kadarkaraisamy,Varapragasam, Shelton J.P.,Hansen, Matthew R.,Rasalingam, Shivatharsiny,Alaparthi, Madhubabu,Sykes, Andrew G.
supporting information, p. 251 - 256 (2018/05/23)
A palladium-tellurium binary alloy nanomaterial was synthesized by a one-pot reaction of bis(4-methoxyphenyltelluro)methane [(4-CH3O-C6H4Te)2CH2](1) and allylpalladium (II)chloride dimer [(η3-C3H5)2Pd2(μ-Cl2)] (2) in 1:1 ratio using methylene chloride as solvent at ambient conditions. In addition to the Pd20Te7 alloy nanomaterial (3) generated, a palliadum (II) tellurolate complex [PdC1(μ-TeC6H4-OCH3)Te(C6H4-OCH3)2]2 (6), and other organic and organotellurim compounds were isolated as byproducts using column chromatography. The palladium-tellurium binary alloy nanomaterial and other byproducts from the reaction were characterized by powder X-ray diffraction (PXRD), NMR, GC-MS, transmission electron microscopy (TEM), and single crystal X-ray diffractions (XRD) methods. The palladium-tellurium binary alloy nanomaterial was obtained as single-phase Pd20Te7 nanorods, under mild conditions. TEM results indicated that the nanorods are less than 15 nm in diameter and range from 40 to 200 nm in length. A nanomaterial mixture was isolated with two binary-phases Pd20Te7 and Pd10Te3 when benzene was used as solvent. Compound 6 was successfully tested for catalytic activity for the Heck Reaction and produced a mixture of PdTe2 with Pd13Te3 nanomaterials as byproducts.
Novel synthesis of bis(4-methoxyphenyltelluro) methane and its complexation with Pd(II) and Pt(II): Crystal structure of [Pd{(4-CH3OC6H4Te)2 CH2}Cl2]- a chelate with short interdonor linkage
Khandelwal,Khalid,Singh,Singh,Karthikeyan
, p. 65 - 68 (2007/10/03)
A novel and convenient route for the synthesis of bis(4-methoxyphenyltellro)methane using one pot reaction of ditelluride, sodium borohydride and chloroform is described. The palladium(II) and platinum(II) complexes of this ditelluroether ligand were also synthesized. The structure of the palladium(II) complex was confirmed by X-ray diffraction studies. The red complex [Pd{(4-CH3OC6H4Te)2CH2}Cl2] crystallizes in monoclinic space group P21/n with four formulae in the unit cell. The cell dimensions are a = 7.872(3) A, b = 20.372(2) A, c = 11.421(3) A, β = 100.90(2)°, Dc = 2.445(5) g cm-3. In the complex, the Pd has distorted square planar geometry around it, the two Cl atoms are cis to each other and the ditelluroether ligand behaves in a bidentate mode. This is the first example in which the ligand molecule, through two tellurium atoms linked with a single carbon atom, is chelated to a single metal centre; the interdonor distance between the tellurium atoms is 3.2939(2) A. The two parallel aryl rings are almost perpendicular to the square planar geometry on the same side of the chelate ring. The complex is monomeric with weak association between tellurium and a neighbouring chlorine.
Synthesis and characterization of bis(aryltelluro)methanes
Torres, Libardo C.
, p. 69 - 78 (2007/10/02)
The reaction of diarylditellurides with diazomethane was used to prepare 7 new bis(aryltelluro)methanes, ArTeCH2TeAr.These compunds were characterized by their 1H, 13C NMR and IR spectra and elemental analysis.The 13C NMR spectra of the corresponding dite
