Bis(2-pyridylimino)isoindolato iron(ii) and cobalt(ii) complexes: Structural chemistry and paramagnetic NMR spectroscopy
作者:Matthias Kruck、Désirée C. Sauer、Markus Enders、Hubert Wadepohl、Lutz H. Gade
DOI:10.1039/c1dt10617a
日期:——
gave the bis(2-pyridylimino)isoindole protioligand 1 (thqbpiH) in high yield. Deprotonation of thqbpiH (1) using LDA in THF at −78 °C yields the corresponding lithium complex [Li(THF)(thqbpi)] (2) in which the lithium atom enforces almost planar arrangement of the tridentate ligand, with an additional molecule of THF coordinated to Li. Reaction of cobalt(II) chloride or iron(II) chloride with one equivalent
凝结 邻苯二甲腈 和 2-氨基-5,6,7,8-四氢喹啉 给了 双(2-吡啶基氨基)异吲哚蛋白质配体1(thqbpiH)高产。在-78°C下在THF中使用LDA对thqbpiH(1)进行质子化反应,生成相应的锂络合物[Li(THF)(thqbpi)](2),其中锂原子强制三齿配体几乎呈平面排列,并带有另外一个分子的THF配位为Li。的反应钴(II),氯化 或者 铁(II),氯化在THF中具有1当量的锂配合物2导致形成金属配合物[CoCl(THF)(thqbpi)](3a)和[FeCl(THF)(thqbpi)](3b)。的顺磁磁化率3A,B(在溶液中,通过伊文思方法测定3A:μ EFF = 4.17μ乙;图3b:μ EFF = 5.57μ乙)。搅拌1和的溶液钴(II)四水合物 在 甲醇得到的钴(II)配合物4,其也可访问由治疗3a中与一个当量的银或醋酸al 在 二甲基亚砜。尽管发现3a,b