128543-95-3Relevant academic research and scientific papers
Isolation and molecular structures of novel organotellurium(iv) halides, oxyhalide and mixed halide
Rakesh, Prakul,Singh, Harkesh B.,Butcher, Ray J.
, p. 10707 - 10714 (2013/01/14)
The formation of chiral (R)-[2-(4-ethyl-2-oxazolinyl)phenyl]tellurium(iv) trihalides (trichloride (5), tribromide (6) and triiodide (7)) and (R)-[2-(4-ethyl-2-oxazolinyl)phenyl]tellurium(ii) bromide (8) is described. The molecular structure of the first c
Orthotellurated Derivatives of N,N-Dimethylbenzylamine: Crystal and Molecular Structures of tellurium(IV) Tribromide and dimethylammonium Chloride
Singh, Harkesh B.,Sudha, Narsimhan,West, Antony A.,Hamor, Thomas A.
, p. 907 - 913 (2007/10/02)
The reaction of o-lithiobenzylamine with elemental tellurium followed by air oxidation furnished an ill defined 'tellurinic anhydride'.Halogenolysis reactions of this with bromine and sulphonyl chloride afforded the corresponding trihalogenotellurium(IV) derivatives.Reduction of the trihalides with excess of hydrazine hydrate gave novel halogenotellurium(II) derivatives.Metathesis of the chlorotellurium(IV) and -(II) derivatives with sodium diethyldithiocarbamate resulted in the formation of dithiocarbamato derivatives.The crystal structure of tellurium(IV) tribromide is monoclinic, space group P21/n with a = 9.226(6), b = 15.439(8), c = 9.618(5) Angstroem, β = 94.94(5) deg, Z = 4, and R = 0.0419 for 938 observed reflections.The co-ordination about Te approximates to octahedral with a vacant equatorial site: two Br atoms axial, the third Br and the organic ligand equatorial (ax) 2.758(2) and 2.633(3), Te-Br(eq) 2.632(2), Te-C 2.12(1), and Te-N 2.42(1) Angstroem>.The compound is essentially monomeric, with a weak association between Te and a neighbouring bromine atom . dimethylammonium chloride is monoclinic, space group P21/n with a = 14.278(12), b= 8.349(5), c = 14.480(8) Angstroem, β = 93.59(5) deg, Z = 4, and R = 0.0288, for 2245 observed reflections.The co-ordination about Te can also be considered as octahedral with a vacant equatorial site: two chlorines apical, and the chloride ion and two carbon atoms equatorial .The quaternary nitrogen atom is twistedaway from the tellurium atom, Te...N 4.380(4) Angstroem, forming a hydrogen bond with a chloride ion.
