从甲醇和吡啶中结晶得到的Ln[15-MC -5](OAc)Cl物种中七配位Ln离子的鉴定。
Identification of seven-coordinate Ln ions in a Ln[15-MC -5](OAc)Cl species crystallized from methanol and pyridine.
作者信息
Biros Elizabeth S, Ward Cassandra L, Allen Matthew J, Lutter Jacob C
机构信息
Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA.
Lumingen Instrument Center, Wayne State University, 5101 Cass Avenue, Detroit, MI. 48202, USA.
出版信息
J Chem Crystallogr. 2022 Jun;52(2):152-160. doi: 10.1007/s10870-021-00900-6. Epub 2021 Aug 21.
Abstract
The title metallacrown (MC) complexes Ln15-MC-5CI(CHN) (), where OAc is acetate, shi is salicylhydroximate, and Ln = Gd and Dy, were synthesized via a self-assembly reaction in methanol and pyridine. Single crystals were grown using slow evaporation and characterized using X-ray diffraction. Seven-coordinate capped octahedron geometries were observed for the lanthanide ion in both complexes, which is uncommon for trivalent lanthanide species. The 15-MC-5 is a ruffled metallacrown archetype similar to previously reported mixed-valent manganese metallacrowns.
摘要
标题为金属冠醚（MC）配合物Ln15-MC-5Cl(CHN)（其中OAc为乙酸根，shi为水杨羟肟酸，Ln = Gd和Dy）是通过在甲醇和吡啶中的自组装反应合成的。使用缓慢蒸发法生长单晶，并通过X射线衍射进行表征。在这两种配合物中，镧系离子均呈现七配位盖帽八面体几何构型，这对于三价镧系物种而言并不常见。15-MC-5是一种褶皱的金属冠醚原型，类似于先前报道的混合价态锰金属冠醚。
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