Synthesis, Crystal Structure, Fluorescent and Antioxidation Properties of Cerium(III) and Europium(III) Complexes with Bis(3‐methoxysalicylidene)‐3‐oxapentane‐1, 5‐diamine. Issue 5 (17th January 2017)

• Record Type: Journal Article
• Authors: Tang, Xia; Shi, Xinkui; Xu, Yuling; Shen, Kesheng; Mao, Shanshan; Wu, Huilu
• Is Part Of: Zeitschrift für anorganische und allgemeine Chemie. Volume 643:Issue 5(2017)
• Page Start: 379
• Page End: 386
• Publication Date: 2017-01-17
• Subjects: Bis(3‐methoxysalicylidene)‐3‐oxapentane‐1, 5‐diamine; Lanthanides; Crystal structure; Fluorescence; Antioxidant; Chemistry, Inorganic -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1002/zaac.201600434
• Languages: English
• ISSNs: 0044-2313

Abstract

Abstract : Two aliphatic ether Schiff base lanthanide complexes ( Ln = Eu, Ce) with bis(3‐methoxysalicylidene)‐3‐oxapentane‐1, 5‐diamine (Bod), were synthesized and characterized by physicochemical and spectroscopic methods. [Eu(Bod)(NO3 )3 ] (1 ) is a discrete mononuclear species and [Ce(Bod)(NO3 )3 DMF]∞ (2 ) exhibits an inorganic coordination polymer. In the two complexes, the metal ions both are ten‐coordinated and the geometric structure around the Ln III atom can be described as distorted hexadecahedron. Under excitation at room temperature, the red shift in the fluorescence band of the ligand in the complexes compared with that of the free ligand can be attributed to coordination of the rare earth ions to the ligand. Moreover, the antioxidant activities of the two complexes were investigated. The results demonstrated that the complexes have better scavenging activity than both the ligand and the usual antioxidants on the hydroxyl and superoxide radicals. Abstract :