The stoichiometric reactions between Ni(II) hydroxy-carbonates and N-p-(R)-H2pheida derivatives (R = MeO or F for MOpheida or Fpheida, respectively) yield two binary compounds [Ni(MOpheida)(H2O)3] (1) and [Ni(Fpheida)(H2O)3] (2). The crystal of compounds 1 and 2 are iso-type; space group P21/c. Our crystallographic results revealed that both studied metal-chelates have molecular structure and the used p-R substituents on the pheida skeleton yield the same structural features. The IDA moiety of pheida-like ligands exhibit the fac-NO2 conformation (1 & 2). Crystal structure of H2Fpheida free acid have also been reported herein.

中文翻译：

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镍 (II) 与 N-苯乙基-亚氨基二乙酸 (2-) 样配体螯合：合成、晶体结构和光谱研究

Ni(II) 羟基碳酸酯和 Np-(R)-H2pheida 衍生物（对于 MOpheida 或 Fpheida，R = MeO 或 F，分别）之间的化学计量反应产生两种二元化合物 [Ni(MOpheida)(H2O)3] (1)和 [Ni(Fpheida)(H2O)3] (2)。化合物1和2的晶体为同种型；空间群 P21/c。我们的晶体学结果表明，所研究的两种金属螯合物都具有分子结构，并且在 pheida 骨架上使用的 pR 取代基产生了相同的结构特征。pheida 样配体的 IDA 部分表现出 fac-NO2 构象 (1 & 2)。H2Fpheida 游离酸的晶体结构也已在本文中报道。