Treatment of M(OTf)2[from MO + 2 HOTf; OTf = OSO2CF3 and M = Ca 1, Sr 2 or Ba 3] with 2MOAr or 2MNR2(M = Na or K, Ar = C6H2But2-2,6-Me-4; R = SiMe3) in thf at 0 °C affords [Ca(OAr)2(thf)3]4, [M(OAr)2(thf)4](M = Sr 5 or Ba 6), [M(NR2)2(thf)2](M = Ca 7 or Sr 8) or [Ba(NR2)(µ-NR2)2Na(thf)2]9; the new compounds 1–3 have been characterised by their NMR spectra in pyridine, and the pyridine adduct of 3 also by X-ray diffraction: crystalline [Ba4(η2-OTf)2(µ-OTf)2(µ3-OTf)4(py)14]·py 10 is unique among metal triflates in having three different bonding modes for the –OTf ligand.
M(OTf)2[from MO + 2 HOTf; OTf = OSO2CF3 and M = Ca 1, Sr 2 or Ba 3] 与 2MOAr 或 2MNR2(M = Na 或 K,Ar = C6H2But2-2,6-Me-4;R=SiMe3)在 0 °C 的 thf 中反应,得到[Ca(OAr)2(thf)3]4、[M(OAr)2(thf)4](M=Sr 5 或 Ba 6)、[M(NR2)2(thf)2](M=Ca 7 或 Sr 8)或[Ba(NR2)(µ-NR2)2Na(thf)2]9;新化合物 1-3 在
吡啶中的核磁共振光谱和 3 的
吡啶加合物的 X 射线衍射表征:结晶[Ba4(η2-OTF)2(µ-OTF)2(µ3-OTF)4(py)14]-py 10 在
金属三
氟化物中是独一无二的,它的-OTF
配体有三种不同的成键模式。