Electric Literature of C3H9OP. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Trimethylphosphineoxide, is researched, Molecular C3H9OP, CAS is 676-96-0, about Complexes of WOCl4 and WSCl4 with neutral N- and O-donor ligands: Synthesis, spectroscopy and structures. Author is Greenacre, Victoria K.; Hector, Andrew L.; Levason, William; Reid, Gillian; Smith, Danielle E.; Sutcliffe, Laura.
The complexes [WOCl4(L)] and [WSCl4(L)] (L = OPPh3, OPMe3, pyridine, 2,2′-bipyridyl), [{WOCl4}2(μ-L-L)] and [{WSCl4}2(μ-L-L)] (L-L = Ph2P(O)(CH2)nP(O)Ph2 (n = 1, 2)) were prepared from WOCl4 or WSCl4 and the ligands in anhydrous CH2Cl2 solution, and characterized by microanal., IR and NMR (1H, 31P{1H}) spectroscopy. X-ray crystal structures are reported for [WOCl4(OPPh3)], [{WOCl4}2(μ-Ph2P(O)(CH2)P(O)Ph2)] and [{WSCl4}2(μ-Ph2P(O)(CH2)2P(O)Ph2)]. All, except those of 2,2′-bipyridyl, are six-coordinate with the neutral donor trans to W:O or W=S. Spectroscopic data suggest that the [WOCl4(2,2′-bipy)] and [WSCl4(2,2′-bipy)] are seven-coordinate. Comparison of the structural and spectroscopic data for the two series of complexes indicate little difference in Lewis acidity between the two tungsten(VI) moieties. Decomposition of [WOCl4(OPMe3)] in solution gave the cyclic trimer [W3O3(μ-O)3Cl6(OPMe3)3], the structure of which revealed a six-membered W3O3 ring core with very asym. oxido-bridges. The structure of the tungsten(V) complex [WOCl3(2,2′-bipy)] is also reported.
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Reference:
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