期刊
JOURNAL OF MOLECULAR STRUCTURE
卷 1228, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.molstruc.2020.129749
关键词
Ferrocene carboxylic acid; 3,5-dimethylpyrazole; Electrochemical studies; Antibacterial activities
资金
- Council of Scientific and Industrial Research (CSIR) Government of India [01 (2914)/17/EMR-11]
- Sigma Aldrich, subsidiary of Merck Life Sciences
- Vellore Institute of Technology
A monomeric zinc ferrocene carboxylate compound was synthesized and characterized, exhibiting a distorted tetrahedral geometry with broad emission band. The compound showed significant antibacterial activity, particularly against Proteus vulgaris bacteria.
Monomeric zinc ferrocene carboxylate [Zn(FcCOO)(3,5-dmp)(2)Cl] (1) has been synthesized from a reaction between the zinc chloride, sodium salt of ferrocene carboxylic acid (FcCOONa) and 3,5-dimethylpyrazole (3,5-dmp) at room temperature. Compound 1 was further characterized by elemental analysis, H-1 NMR, FT-IR, absorption, emission spectroscopic techniques, and molecular structure was confirmed by single-crystal X-ray diffraction studies. The molecular structure of compound 1 crystallized in triclinic system with P (1) over bar space group and the central Zn2+ ion is in a distorted tetrahedral geometry with -FeN2OCl coordination environment. Compound 1 was further stabilized with the aid of inter and intramolecular hydrogen bonding and pi-pi interaction between cyclopentadienyl ring of ferrocene and aromatic heterocyclic five membered 3,5-dimethylpyrazole. Compound 1 exhibits broad emission band, indicating ligandto-metal charger transfer (LMCT) or metal-to-ligand charger transfer (MLCT) nature. The electrochemical property of compound 1 revealed that one-electron anodic and cathodic peaks corresponding to the redox responsible of ferrocene/ferrocenium (FeII <-> Fe-III) moiety. Among the different strains of bacteria, the antibacterial activity of compound 1 showed comparatively a significant activity against gram negative bacterium Proteus vulgaris. (C) 2020 Elsevier B.V. All rights reserved.
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