Crystal Growth and Characterization of a New Tetrameric Complex of Ba(II) with Pamoic Acid

IF 0.6 4区化学 Q4 CRYSTALLOGRAPHY

Journal of Chemical Crystallography Pub Date : 2025-08-13 DOI:10.1007/s10870-025-01057-2

S. Shibu Prasad

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引用次数: 0

Abstract

A new tetrameric complex of Ba(II), [Ba₄(PA)₄(H₂O)₂₀]·4H₂O (PA = pamoate) has been prepared by gel diffusion technique at ambient condition. The grown crystals were characterized by elemental analysis, single crystal X-ray diffraction studies, thermogravimetry, FT-IR and UV–visible spectral studies. The single crystal X-ray diffraction studies show that the crystal structure consists of two different types of nine coordinated Ba centers (Ba1 and Ba2). In addition to the carboxylate groups of pamoate, two coordinated water also interconnect the Ba(II) centers. The carboxylate groups of pamoate exhibit monodentate, bismonodentate and bidentate, coordination modes with Ba(II) ions. Hydrogen bonding further stabilizes the crystal structure. Photoluminescence studies were also carried out.

Graphical Abstract

A new tetrameric complex of Ba(II) with pamoic acid (H₂PA) of formula [Ba₄(PA)₄(H₂O)₂₀]·4H₂O (BaPA) has been prepared by gel diffusion technique at ambient condition and is characterized by various analytical techniques.

Abstract Image

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一种新的Ba(II) - Pamoic酸四聚物的晶体生长和表征

采用凝胶扩散法制备了一种新型四聚物Ba(II), [Ba4(PA)4(H2O)20]·4H2O （PA = pamoate）。通过元素分析、单晶x射线衍射、热重、红外光谱和紫外可见光谱等方法对晶体进行了表征。单晶x射线衍射研究表明，该晶体结构由两种不同类型的9个配位Ba中心（Ba1和Ba2）组成。除了氨基甲酸酯的羧酸基团外，两个配位的水也连接Ba（II）中心。苯胺酸酯羧酸基与Ba（II）离子呈单齿、双齿和双齿配位模式。氢键进一步稳定了晶体结构。还进行了光致发光研究。用凝胶扩散法制备了一种新型的[Ba4(PA)4(H2O)20]·4H2O （BaPA）的四聚体Ba（II）与帕莫酸（H2PA）配合物，并用各种分析技术对其进行了表征。

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来源期刊

Journal of Chemical Crystallography 化学-光谱学

CiteScore

1.50

自引率

12.50%

发文量

审稿时长

6.3 months

期刊介绍： Journal of Chemical Crystallography is an international and interdisciplinary publication dedicated to the rapid dissemination of research results in the general areas of crystallography and spectroscopy. Timely research reports detail topics in crystal chemistry and physics and their relation to problems of molecular structure; structural studies of solids, liquids, gases, and solutions involving spectroscopic, spectrometric, X-ray, and electron and neutron diffraction; and theoretical studies.