lanthanum or neodymium in the presence of excess ethanol. This procedure gave crystalline precursors with molecular stoichiometries suitable for obtaining group 4–lanthanide oxide materials. Compounds 1–6 were examined by analytical and spectroscopic techniques and single-crystal X-ray diffraction. The magnetic properties of 5 and 6 were investigated by using direct and alternating current (dc and ac)
在这项研究中,开发了一种有效的合成罕见的4-
镧系氧-烷氧化物衍
生物的有效方法。杂
金属簇与所述结构中。[La 2的Ti 4(μ 4 -O)2(μ 3 -OEt)2(μ-OET)8(OET)6(Cl)的2(HOEt)2 ](1),[拉2的Zr 2(μ 3 -O)(μ-OET)5(μ-Cl)的(OET)2(HOEt)4(CL)4 ] ñ(2),[拉2的Hf 2(μ 3 -O)(μ-OET)5(μ-Cl)的(OET)2(HOEt)4(CL)4 ] Ñ(3),[
钕2的Ti 4(μ 4 -O)2(μ 3 -OEt)2(μ-OET)8(OET)6(HOEt)2(Cl)的2 ](4),[
钕4的Zr 4(μ 3 -O)2(μ-OET)10(μ-Cl)的4(OEt)8(HOEt)10(Cl)2](5),和[
钕4的Hf 4(μ 3 -O)2(μ-OET)10(μ-Cl)的4(OET)8(HOEt)10(Cl)的2