Two complexes[Ni L(HL)](OAc)(1)and[Zn L(OAc)]_(n)(2)(HL=1-(3-ethylpyrazin-2-yl)ethylidene)-4-methylthiosemicarbazide)have been synthesized and structurally determined by single-crystal X-ray diffraction.The results sh...Two complexes[Ni L(HL)](OAc)(1)and[Zn L(OAc)]_(n)(2)(HL=1-(3-ethylpyrazin-2-yl)ethylidene)-4-methylthiosemicarbazide)have been synthesized and structurally determined by single-crystal X-ray diffraction.The results show that the Ni(Ⅱ)ion in 1 is surrounded by two independent thiosemicarbazone ligands with N4 S2 donor set,one of which is anionic.However,in complex 2,the Zn(Ⅱ)ion with a distorted tetragonal pyramid coordination geometry is five-coordinated,involving twoμ-OCO acetate anions,one tridentate enolizated ligand L-,thus forming one dimension chain-like framework along a axis.Moreover,the fluorescence spectra indicate that the interactions of the complexes with DNA are stronger than that of the thiosemicarbazone ligand.CCDC:1587278,1;1587280,2.展开更多
Utopian visions between China and Western society differed in their early stage. Words reflecting early Chinese utopian visions scattered in many ancient classics. Most of them were general depiction of an ideal socie...Utopian visions between China and Western society differed in their early stage. Words reflecting early Chinese utopian visions scattered in many ancient classics. Most of them were general depiction of an ideal society featured with equality, sympathy, preference for community autonomy and the social order ＂the whole world as one community＂. Early Western society witnessed many utopian monographs. Most of them offered detailed construction of social frame with emphasis on social function division, request for ideal authority, and property co-ownership as core of an ideal society.展开更多
文摘Two complexes[Ni L(HL)](OAc)(1)and[Zn L(OAc)]_(n)(2)(HL=1-(3-ethylpyrazin-2-yl)ethylidene)-4-methylthiosemicarbazide)have been synthesized and structurally determined by single-crystal X-ray diffraction.The results show that the Ni(Ⅱ)ion in 1 is surrounded by two independent thiosemicarbazone ligands with N4 S2 donor set,one of which is anionic.However,in complex 2,the Zn(Ⅱ)ion with a distorted tetragonal pyramid coordination geometry is five-coordinated,involving twoμ-OCO acetate anions,one tridentate enolizated ligand L-,thus forming one dimension chain-like framework along a axis.Moreover,the fluorescence spectra indicate that the interactions of the complexes with DNA are stronger than that of the thiosemicarbazone ligand.CCDC:1587278,1;1587280,2.
文摘Utopian visions between China and Western society differed in their early stage. Words reflecting early Chinese utopian visions scattered in many ancient classics. Most of them were general depiction of an ideal society featured with equality, sympathy, preference for community autonomy and the social order ＂the whole world as one community＂. Early Western society witnessed many utopian monographs. Most of them offered detailed construction of social frame with emphasis on social function division, request for ideal authority, and property co-ownership as core of an ideal society.
