Syntheses and characterization of the W(II) and W(III) N2 complexes, [WCl2(PMe3)3]2N2 and [WCl3(PMe3)2]2N2 |
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| Authors: | Benjamin G Harvey |
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| Institution: | Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, UT 84112-0850, United States |
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| Abstract: | 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. |
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| Keywords: | Tungsten nitrogen complex Bridging nitrogen complex |
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