Mies Thomas, White Andrew J P, Rzepa Henry S, Barluzzi Luciano, Devgan Mohit, Layfield Richard A, Barrett Anthony G M
Department of Chemistry, Imperial College, Molecular Sciences Research Hub, White City Campus, 82 Wood Lane, London W12 0BZ, England.
Department of Chemistry, University of Sussex, Falmer, Brighton BN1 9QR, England.
Inorg Chem. 2023 Aug 21;62(33):13253-13276. doi: 10.1021/acs.inorgchem.3c01506. Epub 2023 Aug 7.
The synthesis of acylpyrazolone salts and their complexes of main group elements, transition metals, lanthanides, and actinides are described and characterized by means of single-crystal X-ray crystallography, NMR, and IR spectroscopies. The complexes consist of two, three, or four acylprazolone ligands bound to the metal atom, resulting in a structurally diverse set of coordination complexes with (distorted) octahedral, pentagonal-bipyramidal, or antiprismatic arrangements. Several complexes proved to be polymeric in the solid state including heterobimetallic sodium/lanthanide coordination polymers. A selection of the polymeric compounds was analyzed via TG/DTA measurements to establish their stability. The ligands, in turn, were readily synthesized in good yields from commercially available hydrazine hydrochloride salts. These findings demonstrate that acylpyrazolone ligands can form complexes with metals of varying ionic radii, highlighted by their utility in other areas such as analytical and metal organic framework chemistry.
描述了酰基吡唑啉酮盐及其与主族元素、过渡金属、镧系元素和锕系元素形成的配合物的合成，并通过单晶X射线晶体学、核磁共振和红外光谱对其进行了表征。这些配合物由两个、三个或四个与金属原子结合的酰基吡唑啉酮配体组成，形成了一组结构多样的配位配合物，具有（扭曲的）八面体、五角双锥或反棱柱排列。几种配合物在固态时被证明是聚合物，包括异双金属钠/镧系配位聚合物。通过热重/差示热分析测量对一些聚合物化合物进行了分析，以确定它们的稳定性。反过来，这些配体很容易从市售的盐酸肼盐中高产率地合成出来。这些发现表明，酰基吡唑啉酮配体可以与不同离子半径的金属形成配合物，这在分析和金属有机框架化学等其他领域的应用中得到了体现。
