Synthesis, Chemical Characterisation, and DNA Binding Studies of Ferrocene-Incorporated Selenoureas

2013 ◽  
Vol 66 (6) ◽  
pp. 626 ◽  
Author(s):  
Raja Azadar Hussain ◽  
Amin Badshah ◽  
Muhammad Nawaz Tahir ◽  
Bhajan Lal ◽  
Inayat Ali Khan

In this article we have presented the synthesis, chemical characterisation (by NMR and FTIR spectroscopy, atomic absorption spectrophotometry, elemental analysis, and single crystal X-ray diffraction), electrochemistry, and DNA binding studies (with cyclic voltammetry, viscometry, and UV-vis spectroscopy) of six new ferrocene incorporated selenoureas. All the six compounds interact electrostatically with DNA which was evident by a negative shift in the cyclic voltammetry peak potential of the drug–DNA adduct relative to the free drug. The drug–DNA binding constant was calculated by a decrease in peak current after the addition of DNA to the free drug. We have also reported binding site sizes and diffusion coefficients of the synthesised compounds.


2010 ◽  
Vol 65 (11) ◽  
pp. 1341-1348 ◽  
Author(s):  
Huilu Wu ◽  
Ke Li ◽  
Tao Sun ◽  
Bin Liu ◽  
Fei Jia ◽  
...  

A tripod ligand tris(N-methylbenzimidazol-2-ylmethyl)amine (Mentb) and its nickel(II) picrate (pic) complex, with composition [Ni(Mentb)(DMF)(H2O)](pic)2, have been synthesized and characterized on the basis of elemental analyses, molar conductivities, IR spectra, and UV/Vis measurements. Single-crystal X-ray diffraction revealed that the Ni atom is six-coordinated in a distorted octahedral geometry. In addition, the DNA-binding properties of the ligand Mentb and its Ni(II) complex have been investigated by electronic absorption, fluorescence and viscosity measurements. The experimental results suggest that the ligand and its Ni(II) complex bind to DNA via an intercalation binding mode, and their binding affinity to DNA follows the order of complex>ligand.



1998 ◽  
Vol 51 (11) ◽  
pp. 977 ◽  
Author(s):  
Chih-Lynne Teo ◽  
Ronald R. Fenton ◽  
Peter Turner ◽  
Trevor W. Hambley

The preparation of [Pt(tmdz)Cl2] (tmdz = 5,5,7-trimethyl-1,4-diazacycloheptane) is described. The crystal structure has been determined by X-ray diffraction methods and refined to an R value of 0·048 (764F). The crystals are triclinic, space group P -1, a 8·023(2), b 10·874(4), c 14·207(3) Å, α 95·34(3), β 94·96(2), γ 94·97(3)°. N.m.r. studies and molecular mechanics methods show that only one diastereomer of the complex—that observed in the crystal structure—is energetically accessible. In total DNA binding studies, [Pt(tmdz)Cl2] binds less effectively and at a lower rate than cisplatin. The complex reacts with dG and d(GpG) to form a variety of isomeric products, as indicated by h.p.l.c. analysis.





2008 ◽  
Vol 61 (9) ◽  
pp. 732 ◽  
Author(s):  
Yi-Xian Yuan ◽  
Yi-Can Wang ◽  
Long Jiang ◽  
Feng Gao ◽  
Si-Min Liang ◽  
...  

Three novel asymmetric ruthenium(ii) complexes, [Ru(bpy)2(PAIDH)]2+ 1, [Ru(phen)2(PAIDH)]2+ 2, and [Ru(dmp)2(PAIDH)]2+ 3 (bpy = 2,2′-bipyridine, phen = 1,10-phenanthroline, dmp = 2,9-dimethyl-1,10-phenanthroline, PAIDH = 2-pyridyl-1H-anthra[1,2-d]imidazole-6,11-dione), have been synthesized and characterized. The structure of the deprotonated complex [Ru(dmp)2(PAID)]+ 4 has been determined by single-crystal X-ray diffraction techniques, and the anthraquinone moiety is approximately coplanar with the imidazole ring. The DNA binding properities of complexes 1, 2, and 3 to calf-thymus DNA (CT-DNA) were investigated. Spectroscopic studies and viscosity experiments suggest that the RuII complexes intercalate into DNA base pairs by the extended anthraquinone unit, and the ancillary ligands have significant effects on the spectroscopic properties and DNA binding behaviour of the RuII complexes.





Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
S Weidenbach ◽  
C Hou ◽  
JM Chen ◽  
OV Tsodikov ◽  
J Rohr


2015 ◽  
Vol 9 (4) ◽  
pp. 210-218 ◽  
Author(s):  
Harun Muslu ◽  
Derya Kılıcaslan ◽  
Mustafa Cesme ◽  
Aysegul Golcu ◽  
Sibel Ozkan


2016 ◽  
Vol 12 (6) ◽  
pp. 781-788 ◽  
Author(s):  
Tina Nasrin ◽  
Ratan Sadhukhan ◽  
Tapan Kumar Das


2021 ◽  
Vol 937 ◽  
pp. 121731
Author(s):  
Lathewdeipor Shadap ◽  
Nipanshu Agarwal ◽  
Vivek Chetry ◽  
Krishna Mohan Poluri ◽  
Werner Kaminsky ◽  
...  


2014 ◽  
Vol 38 (8) ◽  
pp. 3688-3698 ◽  
Author(s):  
Huilu Wu ◽  
Yanhui Zhang ◽  
Chengyong Chen ◽  
Jiawen Zhang ◽  
Yuchen Bai ◽  
...  

Three novel structure Ag(i) complexes have been synthesized and characterized. The three ligands and Ag(i) complexes bind to DNA in an intercalation mode. The Ag(i) complexes have stronger ability of antioxidation for hydroxyl radical and superoxide radical.



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