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- W2041664672 abstract "Reaction of [WI2(CO)3(NCMe)2] with two equivalents of K[pymS] (pymS = pyrimidine-2-thionate) has given the crystallographically characterised complex [W(CO)3(η2-pymS)2] (1).The structure can be described as a distorted monocapped trigonal prism with a carbonyl ligand in the unique capping position. Equimolar quantities of [MI2(CO)3(NCMe)2] and L{for M = Mo or W, L = PPh3; for M = W only, L = PPh2Cy or PPh2Nap (Nap = napthyl)} react to give [MI2(CO)3(NCMe)L], followed by reaction in situ with K[pyS or pymS] (pyS = pyrimidine-2-thionate) afforded the complexes [MI(CO)3L(η2-pyS or pymS)] (2–7). The tungsten complexes [WI2(CO)3LL′] {L = L′ = PPh3, PPh2Cy, PPh2Nap or L = PPhBz2, L′ = AsPh3; L = PPh3, L′ = PPh2Bz, PPhBz2, AsPh3 or SbPh3} (prepared in situ) react with an equimolar amount of K[pymS] to give the S-monodentately coordinated pyrimidine-2-thionate complexes [WI(CO)3LL′(η1-S-pymS)] (8–15). Similarly, treatment of [WI2(CO)3{Ph2P(CH2)nPPh2}] (n = 1–6) (prepared in situ) with one equivalent of K[pyS] or K[pymS] yielded the monodentately attached pyrimidine-2-thionate or pyridine-2-thionate complexes [WI(CO)3{Ph2P(CH2)nPPh2}(η1-S-pyS or -S-pymS)](16–27). The molybdenum complex [MoI2(CO)3{Ph2P(CH2)2PPh2}] (prepared in situ) reacts with an equimolar amount of K[pymS] to give the bidentately coordinated pyrimidine-2-thionate dicarbonyl complex MoI(CO)2{Ph2P(CH2)2PPh2}(η2-pymS)] (28)." @default.
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- W2041664672 title "Seven-coordinate complexes of molybdenum(II) and tungsten(II) containing pyridine-2-thionate and pyrimidine-2-thionate. Crystal structure of [W(CO)3(η2-pymS)2] (pymS = pyrimidine-2-thionate)" @default.
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