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JOURNAL OF SYNTHETIC CRYSTALS ›› 2021, Vol. 50 ›› Issue (12): 2300-2306.

• Research Articles • Previous Articles     Next Articles

Synthesis, CT-DNA Binding, and Cytotoxic Activity of Copper(Ⅱ) Complex {[Cu(OMBA)2]2·(DMF)2}

ZENG Zhenfang, CAI Jiehui, HUANG Qiuping, WEI Youhuan, CHEN Limiao, HUANG Qiuchan   

  1. School of Chemical and Biological Engineering, Guangxi Normal University for Nationalities, Chongzuo 532200, China
  • Received:2021-08-27 Online:2021-12-15 Published:2022-01-06

Abstract: In this paper, a copper(Ⅱ) complex {[Cu(OMBA)2]2·(DMF)2} (OMBA=o-methylbenzoic acid, DMF = N,N-dimethylformamide) was synthesized. The structure of the complex was characterized using elemental analysis, infrared (IR) and X-ray single crystal diffraction. The complex belongs to triclinic, P1 space group, with a=1.037 0(5) nm, b=1.053 6(4) nm, c=1.105 9(5) nm, α=62.737(6)°, β=73.355(7)°, γ=63.231(7)°, Z=1, Dc=1.416 g·cm-3, F(000)=422 unit cell parameters. The final R1=0.051 5, wR2=0.140 4. The interaction between CT-DNA (calf thymus DNA) and the complex was evaluated by UV-Vis, fluorescence spectroscopy, and viscometry. When the complex bound to CT-DNA, the binding constant Kb=939.61 L·mol-1, Ksv=3.00×103 L·mol-1, and Kq=3.00×1011 L·mol-1·s-1. The complex quenched the intrinsic fluorescence of CT-DNA via static quenching, Ka=5.38×103 L·mol-1, n=1. The complex has anti-proliferation effects on A549, Hela and HepG2.

Key words: copper(Ⅱ), complex, synthesis, DNA binding, cytotoxic, antitumor activity, DNA replication

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