complex 3. Recrystallization of 3 from dichloromethane leads to addition of HCl and to the formation of [FeCl2·Ph2P(O)-N(H)-CH2Py}] (5). The phosphonium ion of 2 is isoelectronic to the corresponding diphenyl-bis(2-pyridylmethylamino)silane (6). Lithiation of 6 followed by a metathetical reaction with (thf)2FeCl2 yields the trinuclear complex [Fe3Cl2Ph2Si(NCH2Py)2}2] (7) with antiferromagnetic interactions
(thf)Fe[N(SiMe3)2]2Cl 与 (2-pyridylmethyl)(diphenylphosphanyl)amine (1) 在热
四氢呋喃 (THF) 中反应生成双核 [(ClFe)2μ-N(SiMe3)2} Ph2P(NCH2Py)2}] (2) 和 [ClFePh2P(O)-NCH2Py}]2 (3),其中氧原子源自 THF 降解。2 的形成需要 P-N 键断裂和重整,形成四联二苯基-双(2-
吡啶基甲基酰胺)
鏻离子。如果 (thf)Fe[N(SiMe3)2]2Cl 与 1 的反应在室温下进行,则不会观察到 P-N 键断裂。取而代之的是,醚降解产生 [Fe4(μ4-O)(μ2-Cl)2(Ph2P-NCH2Py)4] (4) 与中心以氧为中心的
铁四面体以及配合物 3。3 从
二氯甲烷中重结晶导致加入 HCl 并形成 [FeCl2·Ph2P(O)-N(H)-CH2Py}]