Compartmentalization of metal ions is crucial in biology as well as in materials science. For the synthesis of single source precursors, the preorganization of different metal ions is of particular interest for the low-temperature generation of mixed metal oxides. On the basis of a potentially Ω-shaped salen-type ligand providing an N₂O₂ as well as an O₂O₂ coordination site, mixed metal coordination compounds with Cu(II) or Ni(II) and alkali metal ions have been studied for their structural and optical properties. UV–vis and ¹H NMR titrations show that the obtained compounds adopt partially different structures in solution compared to the solid state. In the latter case, the coordination geometry is mainly governed by the size of the alkali metal ion as well as the transition metal ion used.

中文翻译：

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将Salen型Cu和Ni复合物穿入一维配位聚合物中：溶液与固态的关系以及碱金属离子的尺寸效应

金属离子的分区化在生物学以及材料科学中都至关重要。对于合成单源前体，对于低温生成混合金属氧化物，特别需要注意不同金属离子的预组织。基于提供N ₂ O ₂和O ₂ O ₂配位点的潜在的呈Ω形的塞伦型配体，已将具有Cu（II）或Ni（II）和碱金属离子的混合金属配位化合物研究了它们的结构和光学特性。紫外线和可见光¹1 H NMR滴定表明，与固态相比，所获得的化合物在溶液中采用部分不同的结构。在后一种情况下，配位几何形状主要由碱金属离子以及所用过渡金属离子的大小决定。