Citation: YOU Li-Xin, LI Jin-Shi, XIONG Gang, WANG Shu-Ju, SUN Ya-Guang. Syntheses, Structures and Interactions with DNA of Two in situ Generated Palladium(Ⅱ) Complexes[J]. Chinese Journal of Structural Chemistry, ;2015, 34(8): 1238-1246. doi: 10.14102/j.cnki.0254-5861.2011-0642 shu

Syntheses, Structures and Interactions with DNA of Two in situ Generated Palladium(Ⅱ) Complexes

1.
Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China

Corresponding author: SUN Ya-Guang,
Received Date: 19 January 2015
Available Online: 4 June 2015
Fund Project: This work was conducted in the framework of a project sponsored by the National Natural Science Foundation of China (No. 21071100) (No. 21071100)Program for Liaoning Excellent Talents in University (LJQ2014043) (LJQ2014043)

Two new complexes [Pd(L-phe)₂·2H₂O] (1) and [Pd(4,4'-dcbpy)(en)·H₂O] (2) (L-phe=L-phenylalanine, 4,4'-dcbpy=2,2'-bipyridyl-4,4'-dicarboxylate, en=ethylenediamine) were synthesized and characterized. L-phenylalanine was in situ formed via the hydrolysis of N-(tert-butoxycarbonyl)-L-phenylalanine, and ethylenediamine came from the in situ reaction of piperazine (pip) under hydrothermal conditions. The single-crystal X-ray structure analyses reveal that the Pd(Ⅱ) ion constructs a square planer coordination geometry in complexes 1 and 2, respectively. Complex 1 extends into a 2D layered structure via H-bond interactions and complex 2 connects into a 3D network through hydrogen bonds and π-π stacking interactions. The interactions of 1 and 2 with fish sperm DNA (FS-DNA) were examined via UV-Vis absorption spectra and fluorescence spectroscopy. The cleavage reaction for plasmid DNA has been assayed by agarose gel electrophoresis. The results indicate that two complexes interact with DNA and the insertion is the main binding mode.
- crystal structure,
- Pd(Ⅱ) complex,
- in situ reaction,
- L-phenylalanine,
- ethylenediamine,
- 2,2'-bipyridyl-4,4'-dicarboxylate
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