170653-98-2Relevant academic research and scientific papers
Cleavage of an Aryl Carbon-Sulfur Bond in Hydride-Thiolate Complexes of Molybdenum and Tungsten. Crystal Structures of 2(μ-S)2> and 2(μ-S)2>
Burrow, Timothy E.,Hughes, David L.,Lough, Alan J.,Maguire, Michael J.,Morris, Robert H.,Richards, Raymond L.
, p. 2583 - 2590 (2007/10/03)
The complexes 1Ph2)> 1 (R1 = Me or Et) in tetrahydrofuran (thf)-R2OH decomposed via cleavage of an aryl carbon-sulfur bond to give C6H3i-Pr3-1,3,5 and the complexes 2)(PR1Ph2)>2(μ-S)2> 2 (R2 = Me or Et).Compounds 2a (R1 = R2 = Me) and 2b (R1 = R2 = Et) have been structurally characterised by X-ray diffraction and shown to be dimers with (μ-S)2 bridging ligands derived from the thiolate ligands of the precursor complexes.The arene produced in these reactions has been detected by 2H NMR spectroscopy and by GC-mass spectrometry; C6H2(2H)i-Pr3-1,3,5 was observed from 1Ph2)> in thf-MeO(2)H.The thermal reactivity of the complex 3 was studied by combined TGA-mass spectrometry.The temperature for TGA started at 50 deg C and was increased at 3 deg min-1 until 500 deg C.Three events were seen at 200, 260 and 320 deg C.At each, mesitylene, the hydrodesulfurisation product, was the major species detected by mass spectrometry; PMe2Ph was also detected during the first event and HSC6H2Me3-2,4,6 during the second and third events at low levels.
