Synthesis, characterization, and antibacterial activity of new rare-earth ion complexes with unsymmetrical Schiff base ligand

Yue, Fan; He, Xin-Qian; Bi, Caifeng; Guo, Feng; Bao, Yilei; Chen, R.

doi:10.1134/s107032840707010x

Cited by 20 publications

(17 citation statements)

References 4 publications

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“…For background to Schiff base compounds, see: Fan et al (2007); Kim et al (2005); Nimitsiriwat et al (2004). For their biological activity, see: Chen et al (1997); Ren et al (2002).…”

Section: Related Literaturementioning

confidence: 99%

“…Data collection: SMART (Bruker, 2002); cell refinement: SAINT (Bruker, 2002); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL. In recent years, much attention has been focused on the synthesis, structures, and properties of Schiff base compounds (Fan et al, 2007;Kim et al, 2005;Nimitsiriwat et al, 2004). Some of the compounds have been found to have excellent pharmacological and antibacterial activity (Chen et al, 1997;Ren et al, 2002).…”

Section: Data Collectionmentioning

confidence: 99%

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4-Chloro-N′-(2-hydroxy-4-methoxybenzylidene)benzohydrazide methanol monosolvate

Zhi¹,

Wang²,

Zhang³

et al. 2011

Acta Cryst E

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The title compound, C15H13ClN2O3·CH3OH, was synthesized by the condensation reaction of 2-hydroxy-4-methoxybenzaldehyde with 4-chlorobenzohydrazide in methanol. The Schiff base molecule displays a trans configuration with respect to the C=N and C—N bonds. The dihedral angle between the two benzene rings is 5.3 (2)°. In the crystal, molecules are linked by N—H⋯O and O—H⋯O hydrogen-bond interactions into chains running parallel to the a axis. An intramolecular O—H⋯N hydrogen bond is observed.

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“…For background to Schiff base compounds, see: Fan et al (2007); Kim et al (2005); Nimitsiriwat et al (2004). For their biological activity, see: Chen et al (1997); Ren et al (2002).…”

Section: Related Literaturementioning

confidence: 99%

Section: Data Collectionmentioning

confidence: 99%

4-Chloro-N′-(2-hydroxy-4-methoxybenzylidene)benzohydrazide methanol monosolvate

Zhi¹,

Wang²,

Zhang³

et al. 2011

Acta Cryst E

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“…88.04 (15) Symmetry transformations used to generate equivalent atoms: #1: x − 1, y, z + 1; #2: x, y + 1, z.…”

Section: Methodsmentioning

confidence: 99%

“…It is known that some rare earth complexes with Schiff base are particularly active in biology [15,16]. People are interesting in chiral Schiff base rare earth coordination polymers.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, crystal structure and anticancer activity of 2D-coordination polymer of cerium(III) with chiral Schiff base trans-N,N′-bis-(2-hydroxy-1-naphthalidehydene)-(1R,2R)-cyclohexanediamine

Yu¹,

Wang²,

Bi³

et al. 2011

Synthetic Metals

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a b s t r a c tThe chiral Schiff base coordination polymer [Ce(H 2 L) 3 (NO 3 ) 3 Ce(H 2 L) 3 (NO 3 ) 3 (H 2 O)] n [H 2 L: trans-N,N -bis-(2-hydroxy-1-naphthalidehy-dene)-(1R,2R)-cyclohexanediamine] was synthesized and characterized by infrared spectroscopy, elemental analysis and single-crystal X-ray diffraction analysis. X-ray crystallography shows that the Ce(III) coordinates with three neutral Schiff base ligands and three nitrates. One Ce(III) is nine-coordinated by three oxygen atoms from three different Schiff base ligands and six oxygen atoms from three nitrates, the other Ce(III) is ten-coordinated because of the coordination of an additional water molecule. Each Schiff base ligand serves as a bridging ligand to link Ce(III) ions through oxygen atoms, leading to a coordination polymer. The Ce(III) coordination polymer displays two dimensional plane grid network structure. The antiproliferation activities of the ligand H 2 L and its Ce(III) coordination polymer on MDA-MB-231 breast cancer cells were also studied by MTT (3-[4,5-dimethyltiazol-2-yl]-2,5-diphenyltetrazolium bromide) method. The results indicate that H 2 L and [Ce(H 2 L) 3 (NO 3 ) 3 Ce(H 2 L) 3 (NO 3 ) 3 (H 2 O)] n can inhibit the cellularproliferation. Moreover, the coordination polymer had higher antiproliferative activity than that of the ligand.

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“…Some rare‐earth ions may participate in various physicochemical processes of the living systems . In particular, some lanthanide complexes with antimicrobial activities can be used as antibacterial and antiphlogistic agents, etc . Schiff‐base ligands with N, O donor sets have often been used since they may assemble coordination architectures directed by the lanthanide(III) ions, whereas the lanthanide ions can promote Schiff‐base condensation and can give access to complexes of otherwise inaccessible ligands .…”

Section: Introductionmentioning

confidence: 99%

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

Tang

Shi

et al. 2017

Zeitschrift anorg allge chemie

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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)3DMF]∞ (2) exhibits an inorganic coordination polymer. In the two complexes, the metal ions both are ten‐coordinated and the geometric structure around the LnIII 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.

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Synthesis, characterization, and antibacterial activity of new rare-earth ion complexes with unsymmetrical Schiff base ligand

Cited by 20 publications

References 4 publications

4-Chloro-N′-(2-hydroxy-4-methoxybenzylidene)benzohydrazide methanol monosolvate

4-Chloro-N′-(2-hydroxy-4-methoxybenzylidene)benzohydrazide methanol monosolvate

Synthesis, crystal structure and anticancer activity of 2D-coordination polymer of cerium(III) with chiral Schiff base trans-N,N′-bis-(2-hydroxy-1-naphthalidehydene)-(1R,2R)-cyclohexanediamine

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

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