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η2-Sulfenamido and -selenamido complexes of titanium, zirconium, molybdenum and tungsten

DOI: 10.1039/DT9960001309

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 1309 - 1321 (1996)

Update date:2022-08-05

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Authors:

Hankin, Danielle M.Hankin, Danielle M.

Danopoulos, Andreas A.Danopoulos, Andreas A.

Wilkinson, GeoffreyWilkinson, Geoffrey

Sweet, Tracy K. N.Sweet, Tracy K. N.

Hursthouse, Michael B.Hursthouse, Michael B.

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Article abstract of DOI:10.1039/DT9960001309

The interaction of TiCl4 with LiN(Bu1)SR (R = Ph or C6H2Me3-2,4,6) gave the sulfenamido complexes TiCl2(η2-ButNSR)2. Interaction of ZrCl4 with 3 equivalents of LiN(But)SPh produced ZrCl(η2-ButNSPh)3 while ZrCl4(tht)2 (tht = tetrahydrothiophene) with 5 equivalents gave the homoleptic Zr(η2-ButNSPh)4. From ZrCl2(η5-C5H5)2 only ZrCl(η5-C5H5)2(η 2-ButNSPh) 5 is obtained. Using as starting materials MO2Cl2(dme) (dme = 1,2-dimethoxyethane, M = Mo or W), MoCl2(NBut)2 and WCl2(NBut)2(py)2 (py = pyridine), interactions with LiNButSPh gave η2-sulfenamido compounds such as MoO2(η2-ButNSPh)2. The selenium analogue of the tungsten compound, i.e. W(NBut)2(η2-ButNSePh) 2 has been made by interaction of Li2W(NBut)4 with PhSeBr. Where study was possible, NMR spectra over a temperature range indicate that invertomers and isomers occur. Six compounds have been structurally characterised by X-ray diffraction. In all cases the sulfenamido ligands are η2 bonded and the geometry about the N atoms is planar.

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Product name:tris(N-tert-butylbenzenesulfenamido)chlorozirconium(IV)

Cas No:176730-98-6

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