Wiecko Michal, Guo Zhifang, Deacon Glen B, Junk Peter C
School of Chemistry, Monash University, Clayton, VIC 3800, Australia.
College of Science & Engineering, James Cook University, Townsville, QLD 4811, Australia.
Molecules. 2022 Nov 3;27(21):7547. doi: 10.3390/molecules27217547.
Europium bis(tetraphenylborate) [Eu(thf)][BPh]⋅thf containing a fully solvated [Eu(thf)] cation, was synthesized by protolysis of "EuPh" (from Eu and HgPh) with EtNHBPh, and the structure was determined by single-crystal X-ray diffraction. Efforts to characterize the putative "PhLn" (Ln = Eu, Yb) reagents led to the synthesis of a mixed-valence complex, [(thf)Yb(-Ph)Yb(Ph)(thf)]⋅2thf, resulting from the reaction of Yb metal with HgPh at a low temperature. This mixed-valence Yb/Yb compound was studied by Yb-NMR spectroscopy and single-crystal X-ray diffraction, and the oxidation states of the Yb atoms were assigned.
双（四苯基硼酸）铕[Eu(thf)][BPh]⋅thf含有一个完全溶剂化的[Eu(thf)]阳离子，通过用EtNHBPh对（由Eu和HgPh得到的）“EuPh”进行质子解反应合成，其结构通过单晶X射线衍射确定。对假定的“PhLn”（Ln = Eu，Yb）试剂进行表征的努力导致合成了一种混合价配合物[(thf)Yb(-Ph)Yb(Ph)(thf)]⋅2thf，它是由Yb金属与HgPh在低温下反应生成的。通过Yb-NMR光谱和单晶X射线衍射对这种混合价Yb/Yb化合物进行了研究，并确定了Yb原子的氧化态。
