characterised. Crystals of 1 grown from MeCN–Et2O contain octahedral manganese(II) centres, with Mn–N 2.188(3)–2.263(3) Å and Mn· · ·N(aminoxyl) distances of 9.740(4) and 9.530(4) Å. The structure shows an unusual O· · ·O contact between aminoxyl centres on adjacent molecules. Voltammetric measurements of L1 and 1–5 in MeCN–0.1 M NBu4PF6 showed a reversible aminoxyl/oxoammonium oxidation, which is perturbed
在4当量粉状KOH在dmso中,50的存在下4'-chloro-2,2'∶6',2''-
吡啶与
4-羟基-
2,2,6,6-四甲基哌啶-1-氧基的反应于室温下放置16小时,然后用
水淬灭,得到2,2,6,6-四甲基-4-(2,2'∶6',2''-三联
吡啶-4'-酰氧基)
哌啶-1-氧基( L 1)以70%的重结晶产率。已经制备并表征了配合物[ML 1 2 ] [BF 4 ] 2(M = Mn 1,Co 2,Ni 3,Cu 4或Zn 5)。从MeCN–Et 2 O中生长的1晶体包含八面体
锰(II)中心,Mn–N 2.188(3)–2.263(3)Å和Mn ··· N(
氨氧基)的距离分别为9.740(4)和9.530( 4)Å。结构显示出异常的O ···
氨氧基之间的O接触以相邻分子为中心。在MeCN-0.1 M NBu 4 PF 6中对L 1和1-5的伏安测量表明,可逆的
氨甲酰/氧
铵铵氧化作用受到络合