Heterocyclic donor influences on the binding and activation of CO, NO, and O2 by copper complexes of hybrid triazacyclononane–pyridyl ligands
作者:Lisa M Berreau、Jason A Halfen、Victor G Young、William B Tolman
DOI:10.1016/s0020-1693(99)00292-3
日期:2000.1
trans-1,2-peroxo species [LCuOOCuL]2+ as determined by UV–Vis and resonance Raman spectroscopy. In contrast, spectroscopy indicates that low temperature oxygenation of [L6PhPyCu]SbF6 yields a bis(μ-oxo)dicopper core, postulated to be capped by η3-L6PhPy (pyridyl appendage not coordinated). Decomposition of the trans-1,2-peroxo compounds results in hydroxylation of the ligand at the benzylic position of the
1,4-二异丙基-7-R''-1,4,7-三氮杂环壬烷的铜(I)配合物(R''= 2-吡啶基甲基,L Py ; 6-甲基-2-吡啶基甲基,L 6MePy ; 5-甲基-制备了2-吡啶基甲基,L 5MePy; 6-苯基-2-吡啶基甲基,L 6PhPy; 2-喹啉基甲基,L Quin),并通过CHN分析,NMR和FTIR光谱,循环伏安法和质谱进行了表征。确定了[L 6PhPy Cu] SbF 6的X射线晶体结构,并将其与先前报道的[L Py Cu] O 3 SCF 3的晶体结构进行了比较。类似扭曲三角双锥几何形状与η协调的配位体通过4时尚。配合物[LCu] +(L = L Py或L Quin)与CO(g)形成加合物,其中杂环附件被置换。与NO(g)一起,[L Py Cu] O 3 SCF 3在歧化过程中反应,生成N 2 O和[L Py Cu(ONO)] O 3 SCF 3,其结构通过X射线晶体学确定。在-75°C下与O