Two newly designed dinuclear ZnII and CoII complexes [Co2(L)2]·H2O (1) and [Zn2(L)2]·H2O (2) of a coumarin-based N2O2-donor ligand H2L (5′-(N,N′-diethylamino)-6′-methyl-2,2′-[ethylenedioxybis(nitrilomethylidyne)]phenolcoumarinphenol) were synthesized and characterized by physicochemical and spectroscopic methods. Complexes 1 and 2 are extremely rare asymmetric binuclear structures. The structures of complexes 1 and 2 are isostructural. In both complexes, one metal atom (Co2 or Zn1) adopts a twisted square pyramid configuration, while another metal atom (Co1 or Zn2) adopts a twisted triangular bipyramid configuration with penta-coordination. In addition, complexes 1 and 2 form 3D supramolecular structures through intermolecular hydrogen bonding interactions. Furthermore, the Hirshfeld surfaces analyses and fluorescence properties of complexes 1 and 2 have been discussed in detail.

中文翻译：

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结构表征的双核锌 (II) 和铜 (II) 香豆素基 N2O2 供体配合物：合成、Hirshfeld 分析和荧光特性

两种新设计的双核 ZnII 和 CoII 配合物 [Co2(L)2]·H2O (1) 和 [Zn2(L)2]·H2O (2) 的香豆素基 N2O2 供体配体 H2L (5'-(N,合成了N'-二乙氨基)-6'-甲基-2,2'-[乙二氧基双(腈基甲基)]苯酚香豆素苯酚)，并通过物理化学和光谱方法对其进行表征。配合物 1 和 2 是极为罕见的不对称双核结构。配合物 1 和 2 的结构是同构的。在这两种配合物中，一个金属原子（Co2 或 Zn1）采用扭曲的四角锥构型，而另一个金属原子（Co1 或 Zn2）采用五配位的扭曲三角双锥构型。此外，配合物1和2通过分子间氢键相互作用形成3D超分子结构。此外，