Studies on synthesis, structure, and DNA cleaving of homo-dinuclear Mn(II), Cu(II), Ni(II), and Zn(II) complexes with a heterocycle-based macroacyclic Schiff base
作者:Talat Baran、Kaan Karaoğlu、Kerim Serbest、Hülya Ağır、Cemal Sandallı、İsmail Değirmencioğlu
DOI:10.1007/s00706-013-0926-6
日期:2013.8
(E,E',E'',E''')-N,N',N'',N'''-[(1,2-ethenyliden)tetrakis[methylenoxy(2,1-naphthalinediyl)methylidyne]tetrakis[1,2,4-triazol-4-amine] and its novel homo-dinuclear Mn(II), Ni(II), Cu(II), and Zn(II) complexes have been synthesized and characterized by elemental analyses, spectroscopic data (i.e., IR, H-1 and C-13 NMR, UV-Vis), electrospray ionisation mass spectra, XRD, DSC, molar conductivity, and magnetic susceptibility measurements. The absorption bands observed in the electronic spectra and magnetic moment values confirm an octahedral environment around the metal ion. The molar conductivity measurements confirm the non-ionic character of these complexes. The DNA cleavage activities of the Schiff base and its homo-dinuclear complexes are also investigated. Results suggest that all the complexes used can be evaluated as nuclease mimics.
(E,E',E'',E''')-N,N',N'',N'''-[(1,2-乙二烯基)[2,1-联苯二甲基ynes-甲基氧(2,1-联苯二丁基)的四次苯基甲基配合物]四次[1,2,4-三唑-4-氨基]配合物及其 novel 化学同核 Mn(II), Ni(II), Cu(II) 和 Zn(II) 合成化合物已成功合成并表征。通过元素分析、红外光谱、氢-1 和碳-13 核磁共振光谱、紫外-可见光谱、电雾质谱、X 射线衍射、差示扫描光谱、摩尔电导率和磁性透射测量进行了表征。电电子光谱中的吸收带和磁矩值证实了围绕金属离子的八面体环境。摩尔电导率测量证实这些复合物的非离子特性。 Also, the cleavage activities of the Schiff base and its homodimeric complexes were investigated. Results suggest that all the complexes used can be evaluated as nuclease mimics.