Quadruply Bonded Dichromium Complexes with Variously Fluorinated Formamidinate Ligands
作者:F. Albert Cotton、Carlos A. Murillo、Isabel Pascual
DOI:10.1021/ic990007l
日期:1999.5.1
synthetic route involves the reaction of CrCl(2) with the corresponding lithium salt of the ligands, LiDArF (where Ar = o-C(6)H(4)F, m-C(6)H(4)F, p-C(6)H(4)F, p-C(6)H(4)C(6)H(5), C(6)F(5), or 3,5-C(6)H(3)F(2)). Compounds [Cr(2)(DPh(p)(-)(F)F)(4)] (1), [Cr(2)(DPh(m)(-)(F)F)(4)] (2), [Cr(2)(DPh(3,5)(-)(F)F)(4)].C(6)H(14) (3.C(6)H(14)), and [Cr(2)(DbiPhF)(4)].0.7CH(2)Cl(2) (4.0.7CH(2)Cl(2)) show no variation
铬与N,N'-二(联苯)甲am(DbiPhF),N,N'-二(五氟苯基)甲idine(DPh(F)()5F),N,N'-di(p -氟苯基)甲form(DPh(p)(-)(F)F),N,N'-二(邻氟苯基)甲idine(DPh(o)(-)(F)F),N,N'-二(3,5-氟苯基)甲idine(DPh(3,5)(-)(F)F)和N,N'-二(间氟苯基)甲idine(DPh(m)(-)(F)F)已合成并在结构上表征了通过改变芳环的取代基来研究MM多键对配体供体容量的响应。六价铬(II)化合物的所有这些双核氟化a酰胺衍生物均具有桨轮构型。合成路线涉及CrCl(2)与相应的配体锂盐LiDArF(其中Ar = oC(6)H(4)F,mC(6)H(4)F,pC(6)H(4)F,pC(6)H(4)C(6)H(5),C(6)F(5)或3,5-C(6)H(3)F (2))。化合物[Cr(2)(DPh(p)(