The interaction of Hg（Ⅱ）, Cu（Ⅰ） and Ag（Ⅰ） with dipyridine quinoxaline ligand 2,3-bis（2-pyridyl）quinoxaline（DPQ） were investigated, and three new complexes have been synthesized and characterized. Complex ...The interaction of Hg（Ⅱ）, Cu（Ⅰ） and Ag（Ⅰ） with dipyridine quinoxaline ligand 2,3-bis（2-pyridyl）quinoxaline（DPQ） were investigated, and three new complexes have been synthesized and characterized. Complex 1 exhibits a 0D dual-core structure, complex 2 is a 0D tetra nuclear case based on a dual-core Cu unit, and complex 3 shows a one-dimensional pipeline structure. Furthermore, the optical properties of complex and DPQ were also investigated, and the results showed that the fluorescence intensity of complexes was weaker than that of ligand DPQ.展开更多
The colour reactions of quaternary complexes of rare earths with eriochrome cyanine R, 1, 10-phenanthroline and cetyltrimethyl ammonium bromide (CTAB) have been reported by the present author.In this paper we are repo...The colour reactions of quaternary complexes of rare earths with eriochrome cyanine R, 1, 10-phenanthroline and cetyltrimethyl ammonium bromide (CTAB) have been reported by the present author.In this paper we are reporting results of studies on the colour reactions of the quaternary complexes of rare earths with eriochrome cyanine R(ECR)-2, 2-dipyridine (dipy) and CTAB, recommending a simple, selective spectrophotometric method for praseodymium in the presence of lanthanum, and for neodymium and samarium in their presence of each other.展开更多
基金supported by the NSFC(21301100)the Education Department Fund of Henan(13A150819)Special fund of Nanyang Normal University(ZX2013029)
文摘The interaction of Hg（Ⅱ）, Cu（Ⅰ） and Ag（Ⅰ） with dipyridine quinoxaline ligand 2,3-bis（2-pyridyl）quinoxaline（DPQ） were investigated, and three new complexes have been synthesized and characterized. Complex 1 exhibits a 0D dual-core structure, complex 2 is a 0D tetra nuclear case based on a dual-core Cu unit, and complex 3 shows a one-dimensional pipeline structure. Furthermore, the optical properties of complex and DPQ were also investigated, and the results showed that the fluorescence intensity of complexes was weaker than that of ligand DPQ.
文摘The colour reactions of quaternary complexes of rare earths with eriochrome cyanine R, 1, 10-phenanthroline and cetyltrimethyl ammonium bromide (CTAB) have been reported by the present author.In this paper we are reporting results of studies on the colour reactions of the quaternary complexes of rare earths with eriochrome cyanine R(ECR)-2, 2-dipyridine (dipy) and CTAB, recommending a simple, selective spectrophotometric method for praseodymium in the presence of lanthanum, and for neodymium and samarium in their presence of each other.
