Copper(I) Complexes of Fluorinated Triazapentadienyl Ligands: Synthesis and Characterization of [N{(C₃F₇)C(Dipp)N}₂]CuL (Where L = NCCH₃, CNBu^t, CO; Dipp = 2,6-Diisopropylphenyl)

Sterically demanding triazapentadiene [N{(C3F7)C(Dipp)N}2] H has been synthesized in good yield. It features a W-shaped ligand backbone in the solid state. [N{(C3F7)C(Dipp)N}2]H reacts with copper(I) oxide in acetonitrile leading to [N{(C3F7)C(Dipp)N}2]CuNCCH3. This copper adduct serves as an excellent precursor to obtain thermally stable [N{(C3F7)C(Dipp)N}2]CuCNBut and [N{(C3F7)C(Dipp)N}2]CuCO. IR spectroscopic data of these copper(I) isocyanide (νCN = 2176 cm-1) and copper(I) carbonyl (νCO = 2109 cm-1) complexes indicate that the [N{(C3F7)C(Dipp)N}2]- ligand is a fairly weak donor.空间位阻较大的三氮杂戊二烯[N{(C3F7)C(Dipp)N}2]H 已以较高收率合成得到。该配体在固态下呈现W形骨架。[N{(C3F7)C(Dipp)N}2]H 与氧化亚铜在乙腈中发生反应，生成[N{(C3F7)C(Dipp)N}2]CuNCCH3。该铜加合物可作为优良前驱体，用于制备热稳定性优异的[N{(C3F7)C(Dipp)N}2]CuCNBut与[N{(C3F7)C(Dipp)N}2]CuCO。对该铜(I)异氰化物（νCN = 2176 cm⁻¹）及铜(I)羰基（νCO = 2109 cm⁻¹）配合物的红外光谱数据表明，[N{(C3F7)C(Dipp)N}2]⁻配体属于偏弱的给体配体。