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| Two dinuclear Gd(Ⅲ)-based complexes constructed by a multidentate diacylhydrazone ligand: Crystal structure, magnetocaloric effect, and biological activity |
| Author Name | Affiliation | E-mail | | JI Jia | Key Laboratory of Preparation and Application of Micro & Mesoporous Nanomaterials of Guizhou Province, Kaili University, Kaili, Guizhou 556011, China | | | GUO Zhaoyang | College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, Shanxi 030619, China | | | LEI WenNi | College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, Shanxi 030619, China | | | ZHENG Jiawei | College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, Shanxi 030619, China | | | QIN Haorong | College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, Shanxi 030619, China | | | YAN Jiahong | College of Chemistry and Materials, Taiyuan Normal University, Jinzhong, Shanxi 030619, China | | | HOU Yinling | Key Laboratory of Preparation and Application of Micro & Mesoporous Nanomaterials of Guizhou Province, Kaili University, Kaili, Guizhou 556011, China | hyl0506@126.com | | XIN Xiaoyan | Civil Aviation Modern Industry College, Ningxia Institute of Science and Technology, Shizuishan, Ningxia 753000, China | 1624889278@qq.com | | WANG Wenmin | Key Laboratory of Preparation and Application of Micro & Mesoporous Nanomaterials of Guizhou Province, Kaili University, Kaili, Guizhou 556011, China | wangwenmin0506@126.com |
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| Abstract: Two new binuclear Gd2 complexes with the molecular formula [Gd2(L)(H2L)]·2CH3OH·CH3CN (1) and [Gd2(H2L)2(dbm)2]·6CH3CN (2) (Hdbm=dibenzoylmethane) have been obtained by using a large conjugated diacylhydrazone organic ligand N',N'-(1E，1'E)-(1,10-phenanthroline-2,9-diyl)bis(methaneylylidene) bis (2-hydroxy-benzohydrazide) (H4L) reacting with Gd(NO3)3·6H2O or Gd(dbm)3·2H2O. Structure studies reveal that Gd2 complexes 1 and 2 belong to a triclinic crystal system with space group P$\overline{1}$. Nevertheless, they show different molecule structures. 1 displays a cattail leaf fan shape, while 2 displays a pinwheel-shaped cage. Magnetic properties researches suggest that the two Gd2 complexes displayed different magnetic refrigeration (-ΔSm=23.35 and 15.09 J·kg-1·K-1 for 1 and 2, respectively). In addition, the synergistic interaction between ligand and Ln(Ⅲ) ions, promotes the two Gd2 complexes showing excellent antibacterial activity. When the Gd2 complexes interact with DNA, the Gd2 complexes mainly insert or cut DNA. |
| Keywords: dinuclear Gd2 complexes crystal structure magnetic refrigeration antibacterial activity DNA binding |
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| JI Jia,GUO Zhaoyang,LEI WenNi,ZHENG Jiawei,QIN Haorong,YAN Jiahong,HOU Yinling,XIN Xiaoyan,WANG Wenmin.Two dinuclear Gd(Ⅲ)-based complexes constructed by a multidentate diacylhydrazone ligand: Crystal structure, magnetocaloric effect, and biological activity[J].Chinese Journal of Inorganic Chemistry,2025,41(4):761-772. |
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