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Ag(Ⅰ) 이온 선택성을 갖는 거대고리 리간드: 벤질 치환기를 갖는 질소-산소 주개 거대고리 리간드의 착물 형성과 액체막 이동 현상
김정,안태호,이명노,조문환,김시중,Kim, Jeong,Ahn, Tae Ho,Lee, Myoung Ro,Cho, Moon Hwan,Kim, Si Joong 대한화학회 1999 대한화학회지 Vol.43 No.2
벤질 치환기를 포함하는 질소-산소 혼합 주개 거대고리 리간드와 Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Pb(II) 그리고 Ag(I)와의 상호작용에 관한 연구를 수행하였다. 95% 메탄올 용액에서 각 착물의 안정도 상수를 전위차 적정법을 통해 결정하였으며 또한 이들 거대고리 리간드를 포함하는 액체막을 통하여 금속 이온의 이동을 조사하였다. 그 결과 Cu(II)와 Ag(I) 이온의 경우만 사용한 두 리간드와 안정한 착물을 형성하는 것으로 조사되었으며 액체막 이동 실험에서는 Ag(I) 이온의 선택적 이동이 일어남을 확인하였다. An investigation of the interaction of Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Pb(II) and Ag(I) with two N,N'-dibenzylated nitrogen-oxygen mixed donor macrocyclic ligands, has been carried out. Tle log K values for the respective complexes in 95% methanol have been determined potentiometrically. Both ligands have formed stable complex with only Cu(II) and Ag(I) ion. Transport measurements in a bulk liquid membrane system exhibited a very high selectivity of Ag(I) ion over the other metal ions used.
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이재성(Jae-Sung Lee),이명노(Myoung-Ro Lee) 한국해양비즈니스학회 2009 해양비즈니스 Vol.- No.13
In order for Korea to move forward as a powerhouse of a world-wide trading sector, it is indispensable to devise a national-level strategy in the education of trading via contriving quantitative and qualitative improvement in terms of trading education of universities, the cradles of trade expert cultivation. According to such a historical background, the activities of Changpogo, who ruled the commercial power of Northeast Asia throughout the end of 8th century and early part of 9th century suggest particular emphasis to countries and enterprises in the modern period. Changpogo built a global network, viewing Northeast Asia as one world, and ruled the world of trade at the time. He held the real power of the vast sea, which connects China and Japan by making an inroad to overseas and opening the market. The examples of Changpogo entail exemplary quality regards to leadership and management capability for CEOs. The 21st century is the period for the sea. Thanks to application of the marine territory concept, the value of the sea is upsurging, and interests as well as desire are intensive as countries of Northeast Asia are linked with the sea. Amid the international order revamping process, it is essential for the countries of Northeast Asia such as united Korea, China, Japan and Russia to form collaboration or a community, which is well adjusted with interests and comprehension, alongside a certain degree of unity in the historical reality.
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