Preparation, Structure, DNA-Binding Properties, and Antioxidant Activities of a Homodinuclear Erbium(III) Complex with a Pentadentate Schiff Base Ligand

Abstract

An erbium (III) complex of a pentadentate Schiff base ligand [(NO 3 )Er(µ-L) 2 Er(NO 3 )].2H 2 O [H 2 L=bis(N-salicylidene)-3oxapentane-1,5-diamine] has been synthesised, characterised and its structure confirmed by X-ray crystallography. H 2 L and the Er(III) complex both bind to DNA via a groove binding mode, and the Er(III) complex binds to DNA more strongly than H 2 L. The complex shows strong scavenging effects for hydroxyl radicals (OH·) and superoxide radicals (O 2 −· ).

Trinuclear Co(II) and Mononuclear Ni(II) Salamo-Type Bisoxime Coordination Compounds

“…Further, it enhances the lipophilic character of the central atom. These observations are analogical to earlier reports of biological activities of related Schiff base coordination compounds [77]. …”

Crystal structure of bis((1-(((4-(((benzyloxy)imino)methyl)phenyl)imino)methyl)naphthalen-2-yl)oxy-κ2 O,N)copper(II), C52H42CuN4O4

“…It is well known that some Schiff bases and their metal complexes are intensively investigated [4][5][6][7][8][9]. Especially the synthesis and crystal structure of oxime-type Schiff base compounds and their derivatives [10][11][12][13][14].…”

Structural and Luminescent Properties of Heterobimetallic Zinc(II)-Europium(III) Dimer Constructed from N2O2-Type Bisoxime and Terephthalic Acid

“…Salen-and salamo-type complexes have been extensively investigated in organometallic chemistry and modern coordination chemistry for several decades [7][8][9][10][11], their complexes are well-known for their potential applications in many areas, such as catalysts [12,13], biological fields [14][15][16][17][18][19][20][21], supramolecular buildings [22][23][24][25][26], molecular recognitions [27][28][29][30][31], magnetic [32][33][34][35][36][37] and luminescence [38][39][40][41][42][43][44][45] materials and so forth. Self-assembling processes of a metallohost complex with auxiliary organic ligands are usually utilized in the building of metal-organic framework (MOF) materials [46,47].…”