The reaction of the phenylene-bridged precursor (1,4-C6H4)[N(PCl2)2]2 with tBuNH2 in the presence of Et3N gives the new ligand precursor (1,4-C6H4)[N(μ-NtBu)2(PNHtBu)2]2, deprotonation of which with Bu2Mg gives the novel tetraanion [(1,4-C6H4){N(μ-NtBu)2(PNtBu)2}2]4−.
![Graphical abstract: Synthesis and structure of the extended phosphazane ligand [(1,4-C6H4){N(μ-PNtBu)2NtBu}2]4−](/en-ph/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=C5DT04393J&imageInfo.ImageIdentifier.Year=2016)
R. Sevilla, R. J. Less, R. García-Rodríguez, A. D. Bond and D. S. Wright, Dalton Trans., 2016, 45, 1868 DOI: 10.1039/C5DT04393J
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