当前位置: X-MOL 学术Russ. J. Coord. Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Noncovalent Interactions in the Architectures with Substituted Salicylaldehyde Semicarbazones
Russian Journal of Coordination Chemistry ( IF 1.9 ) Pub Date : 2021-07-08 , DOI: 10.1134/s1070328421070034
L. N. Cuba 1 , E. C. Gorincioi 1 , D. P. Dragancea 1 , S. G. Shova 1 , P. N. Bourosh 1, 2
Affiliation  

Abstract

The X-ray diffraction study of three compounds containing 2,3-dihydroxybenzaldehyde semicarbazone (H3L1) or 2-hydroxy-3-methoxybenzaldehyde semicarbazone (H2L2) shows the formation of one organic salt with protonated triethylamine [(C2H5)3NH][H2L1]·0.5(CH3)2CO (I) and two new coordination nickel(II) compounds with these two differently substituted semicarbazones of salicylaldehyde [Ni(H3L1)(H2L1)](NO3)·2.5MeOH·0.25H2O (II) and [Ni(H2L2)2]Cl2·4H2O (III) (CIF files CCDC nos. 2041894–2041896 (IIII)). The Ni(II) compounds are ionic and formed by the complex cations with the same metal to ligand ratio. The Ni(II) ion in these complex cations is characterized by a distorted octahedral coordination geometry formed by a set of donor atoms N2O4 of two ligands coordinated via the tridentate mode. In the monocharged complex cation of compound II, two coordinated ligands are not identical. One of them acts as the neutral chelating agent (H3L1), and the second ligand is deprotonated and involved as the monoanion (H2L1). Both H2L ligands are neutral in the complex cation of compound III. In the crystal, all the three compounds form supramolecular ensembles of diverse dimensionality and architecture, and their components are joined by weak interactions of different types.



中文翻译:

取代水杨醛缩氨基脲结构中的非共价相互作用

摘要

含有 2,3-二羟基苯甲醛缩氨基脲 (H 3 L 1 ) 或 2-羟基-3-甲氧基苯甲醛缩氨基脲 (H 2 L 2 )的三种化合物的 X 射线衍射研究表明,与质子化三乙胺形成了一种有机盐 [(C 2 H 5 ) 3 NH][H 2 L 1 ]·0.5(CH 3 ) 2 CO ( I ) 和两种新的配位镍(II)化合物与这两种不同取代的水杨醛缩氨基脲[Ni(H 3 L 1 )( H 2 L 1 )](NO 3)·2.5MeOH·0.25H 2 O ( II ) 和 [Ni(H 2 L 2 ) 2 ]Cl 2 ·4H 2 O ( III )(CIF 文件 CCDC 编号 2041894–2041896 ( IIII ))。Ni(II) 化合物是离子型的,由具有相同金属与配体比例的络合阳离子形成。这些复合阳离子中的 Ni(II) 离子的特征是扭曲的八面体配位几何形状,由一组通过三齿模式配位的两个配体的供体原子 N 2 O 4形成。在化合物II的单电荷络合阳离子中,两个配位配体不相同。其中一个作为中性螯合剂 (H 3 L 1 ),第二个配体被去质子化并作为单阴离子 (H 2 L 1 ) – 参与。两个H 2 L 配体在化合物III的络合阳离子中都是中性的在晶体中,所有三种化合物形成不同维度和结构的超分子系综,它们的组分通过不同类型的弱相互作用连接。

更新日期:2021-07-09
down
wechat
bug