Synthesis and characterisation of a range of Fe, Co, Ru and Rh triphos complexes and investigations into the catalytic hydrogenation of levulinic acid
作者:Uwaila Omoruyi、Samuel J. Page、Samantha L. Apps、Andrew J.P. White、Nicholas J. Long、Philip W. Miller
DOI:10.1016/j.jorganchem.2020.121650
日期:2021.3
paramagnetic bidentate complex [Fe(Br)2(κ2-NP3Ph)] (6). Reaction of NP3Ph with CoCl2 gave a dimeric Co species [(κ2-NP3Ph)CoCl(κ1,κ2-NP3Ph)CoCl3] (7), while Zn powder reduction of NP3Ph Co halides resulted in the formation of the tridentate complexes of the type: [Co(X)(κ3-NP3Ph)]. The related triphos Ru complex, [Ru(CO3)(CO)(κ3-CP3Ph)] (2), has also been isolated and characterised. Preliminary catalytic
N-triphos配体(NP 3 Ph,1b)的配位化学已与一系列Fe,Co和Rh前体进行了研究,发现形成三齿或双齿络合物。NP的反应3博士用的[Rh(COD)(CH 3 CN)2 ] BF 4导致三齿复合物的形成的[Rh(COD)(κ 3 -NP 3博士)] BF 4(3)在固体但是,在溶液中,双齿配合物在极性更大的溶剂中占主导地位。NP 3 Ph的反应为Fe羰基前体揭示了双齿复合物的形成的[Fe(CO)3(κ 1,κ 2 -NP 3博士)的Fe(CO)4 ](4)和[铁(CO)3(κ 2 -NP 3 pH值)](5),同时用反应FeBr 2导致顺二齿复杂的[Fe(BR)2(κ 2 -NP 3的pH)](6)。NP的反应3博士用氯化钴2给了一个二聚体Co种类[(κ 2 -NP 3pH值)氯化钴(κ 1,κ 2 -NP 3的pH)氯化钴3 ](7),而NP的Zn粉还原3的pH钴卤化物导致类型的三齿复合体的形成:[CO(X)(κ