Neutral and cationic iron carbonyl complexes substituted with the water-soluble phosphines [Ph2P(CH2)nPMe3]+ (n = 2,3,6 and 10)
作者:István Kovàcs、Michael C. Baird
DOI:10.1016/0022-328x(95)05751-a
日期:1995.10
complexes of the types Fe(CO)4L and [CpFe(CO)2L]+ (L = water-soluble phosphines [Ph2P(CH2)nPMe3]+n = 3, 3, 6 and 10, henceforth denoted as II-, III-, VI- and X-phophos respetively), containing neutral iron(0) and monocationic iron(II) centres respectively, have been prepared and characterized by mass spectroscopy, IR and multinuclear NMR techniques. In addition to the complexes Fe(CO)4L, disubstituted derivatives
两个系列的Fe(CO)4 L和[CpFe(CO)2 L] +(L =水溶性膦[Ph 2 P(CH 2)n PMe 3 ] + n = 3,3的羰基铁络合物,6和10,此后分别表示为II-,III-,VI-和X-phophos),分别制备了中性铁(0)和单阳离子铁(II)中心,并通过质谱,IR和多核进行了表征NMR技术。除了配合物Fe(CO)4 L,反式-Fe(CO)3 L 2类型的双取代衍生物也已获得副产物。对于复杂的反式-[Fe(CO)3(II-phophos)2 ](PF 6)2,II-phophos 31 P 1 H}共振(正式称为XAA'X'自旋系统)表现出虚拟耦合,我们的知识在X和X'是31 P核的双叔膦配合物中是第一个这样的例子。