共查询到20条相似文献,搜索用时 15 毫秒
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Norris W. Hoffman 《Inorganica chimica acta》1984,88(1):59-61
(C5H5)W(CO)3Cl has been prepared in >90% yield from W(CO)6, cyclopentadiene, and CCl4 in a single-flask synthesis involving the intermediates W(CO)3(CH3CN)3 and (C5H5)W(CO)3H. 相似文献
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The compounds W(CO)5P(C6H4-4-CH2CH2(CF2)7CF3)3 (1) and W(CO)5P(CH2CH2(CF2)5CF3)3 (2) were synthesized in order to probe the electronic and physical effects of ligation by perfluorocarbon substituted tertiary phosphine ligands in a W(CO)5L complex. The π-accepting ability of the fluorous phosphines was found to rank with non-fluorous comparators as P(CH2CH2(CF2)5CF3)3 > P(C6H4-4-CH2CH2(CF2)7CF3)3 > PPh3 > P(p-tolyl)3 > P(n-octyl)3. The X-ray crystal structure of W(CO)5P(C6H4-4-CH2CH2(CF2)7CF3)3 shows strong intermolecular association of fluorous components but confirms that the para fluorocarbon subtituents have an insignificant effect on the tungsten coordination environment. Partition coefficients (toluene/perfluoromethylcyclohexane) were measured for compounds 1 and 2. 相似文献
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Benjamin G. Harvey 《Inorganica chimica acta》2010,363(1):221-224
Refluxing WCl4(PMe3)3 under a nitrogen atmosphere in the presence of two equivalents of sodium amalgam leads to a reduction to the W(II) complex [cis,mer-WCl2(PMe3)3]2N2 (1), which can be converted to [mer,trans-WCl3(PMe3)2]2N2 (2) via appropriate oxidation/chlorination. Structural data have been obtained for both complexes, and demonstrate significantly increased steric crowding in 1 due to PMe3/PMe3 interactions. The N-N bond distances in the two compounds are similar, at 1.279(4) and 1.243(18) Å, respectively. 相似文献
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