Syntheses, structures and fluorescence properties of two Ce/Zn-Ce complexes with an open-chain ether Schiff base ligand. Issue 13 (3rd July 2021)

• Record Type: Journal Article
• Authors: Xu, Jianhua; Xia, Xinzhao; Xia, Lixian; Dong, Jianping; Jiang, Yuxuan; Sun, Fugang; Wu, Huilu
• Is Part Of: Journal of coordination chemistry. Volume 74:Issue 13(2021)
• Page Start: 2263
• Page End: 2273
• Publication Date: 2021-07-03
• Subjects: Open-chain ether Schiff base ligand -- d-f heteronuclear complex -- crystal structure -- fluorescence property; Coordination compounds -- Periodicals; 541.2242
• DOI: 10.1080/00958972.2021.1954622
• Languages: English
• ISSNs: 0095-8972

Abstract

Abstract: Reaction of bis(3-methoxysalicylidene)-3-oxapentane-1, 5-diamine (H2 L) with Ce(NO3 )3 afforded a new Ce(III) complex with composition [Ce(H2 L)(NO3 )3 ] (1 ). Complex 1 reacts with zinc acetate and terephthalic acid to prepare complex 2, [Zn4 Ce2 (L)4 (terephthalate)2 ][Ce(DMF)(NO3 )5 ]. They have been characterized by elemental analysis, UV/Vis and IR spectroscopy, and single-crystal X-ray diffraction. The structure analysis revealed that 1 is mononuclear, whereas 2 is d-f heteronuclear. The fluorescence properties of the ligand and complexes 1 and 2 were studied in the solid state. The significantly blue-shifted emissions and enhancement of fluorescence in 1 and 2 relative to the ligand were attributed to coordination of ligand with metal ions. The results show that the structure and fluorescence of the Ce(III) complexes can be modified by introducing Zn(II) ion and auxiliary ligand terephthalate. Abstract : UF0001