Synthesis and Structure of Chromium(VI) Nitrido Cyclopentadienyl Complexes
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https://figshare.com/articles/dataset/Synthesis_and_Structure_of_Chromium_VI_Nitrido_Cyclopentadienyl_Complexes/2127829
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资源简介：
A series
of rare nitrido cyclopentadienyl complexes have been prepared
of chromium(VI). An improved synthesis of NCr(I)(NPri2)2 is provided, which reacts with NaCp to give
NCr(η1-Cp)(NPri2)2 (1) in 82% isolated yield. The η1-indenyl
complex 2 can be prepared using a similar procedure.
Replacement of one diisopropylamido ligand was accomplished to prepare
NCr(NPri2)Cp(O2CPh) (3), NCr(NPri2)Cp(Cl) (4), and [NCr(NPri2)Cp(NCMe)]+[SbF6]− (5). In the series, the Cr–C interactions
increase in bond order, 3 < 4 < 5, as the cyclopentadienyl compensates for the decreasing
donor ability of the other ligands on chromium. The Ligand Donor Parameters
(LDPs) for the η1-cyclopentadienyl and η1-indenyl ligands were measured as 13.73 and 13.76 kcal/mol,
respectively. Compounds 1–5 were
characterized by single-crystal X-ray diffraction.
创建时间：
2016-02-13
