Preparation and Properties of a Cadmium Coordination Compound with 4,5-Imidazoledicarboxylic Acid

doi:10.16553/j.cnki.issn1000-985x.2024.0230

Abstract

Abstract: The compound {[Cd(H₂IDC)₂(H₂O)₂]·2H₂O}_n (1) was synthesized via a hydrothermal method, utilizing 4,5-imidazoledicarboxylic acid (H₃IDC) and Cd(NO₃)₂·4H₂O as raw materials. Single crystal X-ray diffraction (SXRD), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and fluorescence spectroscopy (FL) were employed to ascertain and elucidate the structure of compound 1. SXRD analysis reveals that compound 1 categorized under the P2₁/n space group of monoclinic crystal system. In compound 1, Cd(II) ions coordinate with H₂IDC^- anions and water molecules to form a six-coordinated octahedral configuration, which is further extended into a three-dimensional structure through hydrogen bonding. Fluorescence spectrum analysis at room temperature indicates that compound 1 exhibits the most intense emission peak at 598 nm when excited at a wavelength of 296 nm.

Key words: Cd(II) complex, 4,5-imidazoledicarboxylic acid, hydrothermal synthesis, crystal structure, fluorescence property

CLC Number:

O641.4

LI Miao, ZHENG Yimeng, SUN Yiting, MAO Yuling, ZHU Baili, CUI Shuxin. Preparation and Properties of a Cadmium Coordination Compound with 4,5-Imidazoledicarboxylic Acid[J]. Journal of Synthetic Crystals, 2025, 54(1): 121-125.

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