Two Lanthanide(III) Complexes based on the Schiff Base N,N′‐Bis(salicylidene)‐1,5‐diamino‐3‐oxapentane: Synthesis, Characterization, DNA‐binding Properties, and Antioxidation

Abstract

The Schiff base N,NЈ-bis(salicylidene)-1,5-diamino-3-oxapentane (H 2 L) and its lanthanide(III) complexes, PrL(NO 3 )(DMF)(H 2 O) (1) and Ho 2 L 2 (NO 3 ) 2 ·2H 2 O (2), were synthesized and characterized by physicochemical and spectroscopic methods. Single crystal X-ray structure analysis revealed that complex 1 is a discrete mononuclear species. The Pr III ion is nine-coordinate, forming a distorted capped square antiprismatic arrangement. Complex 2 is a centrosymmetric dinuclear neutral entity in which the Ho III ion is eight-coordinate with distorted square antiprismatic arrangement. The DNA-binding proper-

Crystal structure of (E)-1-(2-hydroxy-3-{[2-hydroxybenzylidene]amino}phenyl)ethan-1-one, C15H13NO3

“…It is no gainsaying that the application of Schiff base compounds and their derivatives have become indispensable in the development of metal complexes in modern coordination chemistry [6][7][8], the classical catalytical processes [9], biological activities [10], photochemical [11,12] and magnetic materials [13] and supramolecular architectures [14,15].…”

Crystal structure of dimethanol-bis{3-(((2-oxidonaphthalen-1-yl)methylene)amino)-2-oxo-2H-chromen-4-olato-κ3 O,N:O′}dizinc(II), C42H30Zn2N2O10

“…These Schiff base ligands and their metal complexes could be utilized in obtaining luminescence materials [8][9][10][11], biological systems [12], magnetic materials [13][14][15], and supramolecular constructing [16,17]. The binuclear Zn(II) complex of the title structure consists of two Zn(II) atoms, two tridentate ligand units L 2− , two coordinated methanol molecules.…”

Structural and Hirshfeld Surface Analyses of a Novel Hetero-Tetranuclear CuII-NaI Bis(Salamo)-Based Coordination Compound

“…Salen-type ligands and their coordination compounds have been extensively investigated [1][2][3][4][5][6][7][8][9][10] for their catalytic activities [11][12][13][14][15], biological activities [16][17][18][19][20][21][22], supramolecular architectures [23][24][25][26][27][28][29][30][31][32], and fluorescence properties [33][34][35][36][37][38]. To improve the properties of Salen-type ligands, in recent years, Nabeshima and our group's researches mostly concentrated on the syntheses of Salamo-type ligands, which are a class of novel Salen-type analogues [39][40][41][42][43][44][45][46][47][48]…”