Development of New Technique to Probe Rapid ReactionsAfter Dissolution of Solids
固体溶解后快速反应探测新技术的开发
基本信息
- 批准号:11440218
- 负责人:
- 金额:$ 5.06万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:1999
- 资助国家:日本
- 起止时间:1999 至 2001
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In this project, efforts have been made to develop a new instrument that enables the detection of an extremely rapid reaction that takes right after dissolution of a solid sample. The fundamental concept is very simple and is to develop a 'flash-solid-dissolution equipment' facilitating not only a prompt dissolution of a solid but also a prompt filtration for the removal of undissolved solid at the same time. To this end, experiments were carried out to find out an appropriate method offiltration. As a result, we found that a Teflon wool is a good candidate. We further endeavored to design to construct the main part of the above mentioned dissolution equipment. In our equipment, a solution is rapidly transferred into a solid-dissolution room equipped with a filtration facility. Injection is carried out by use of air pressure of about 3 atm. A freshly prepared filtrate is simultaneously transferred into an optical measurement cell. Finally, a rapid chemical reaction that takes place immediately after the dissolution event can be monitored by use of a multi-channel photodiode array spectrophotometer to analyze the kinetics of the reaction. In our new equipment, it is possible to minimize the dead time corresponding to the unobservable time domain into ca. 0.5 sec or so. With this methodology, we have succeeded in observing a very rapid reaction that takes place after dissolution of a mixed-valence tetranuclear platinum complex. We have been for a long time unaware of this reaction. Thus we have demonstrated that such an approach is indeed valid to better understand the chemical phenomena that are occurring right after dissolution of a certain chemical into a solution.
在这个项目中,已经努力开发了一种新的仪器,能够检测在固体样品溶解后立即发生的极快速反应。其基本概念非常简单,就是开发一种“闪速固体溶解设备”,它不仅能迅速溶解固体,而且还能快速过滤,同时去除未溶解的固体。为此,进行了实验,以寻找一种合适的过滤方法。结果,我们发现特氟龙羊毛是一个很好的选择。在此基础上,对上述溶出装置的主要部件进行了设计。在我们的设备中,溶液被快速转移到配备有过滤设施的固溶室中。通过使用大约3个大气压的气压来进行注射。同时将新制备的滤液转移到光学测量池中。最后,使用多通道光电二极管阵列分光光度计可以监测在溶解事件发生后立即发生的快速化学反应,以分析反应的动力学。在我们的新设备中,可以将与不可观测的时间域相对应的死区时间最小化到大约0.5秒左右。用这种方法,我们成功地观察到了混合价四核铂络合物溶解后发生的非常快速的反应。我们很长一段时间都没有意识到这种反应。因此,我们已经证明,这种方法对于更好地理解在某种化学物质溶解到溶液后立即发生的化学现象确实是有效的。
项目成果
期刊论文数量(13)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
K.Sakai, 他3名: "A Hexaimino Cryptand containing Naphthyl Groups ; Structural Characterization of Mononudear Complexes and Catalysis in Hydrolysis of p -Nitro Phosphate"Inorg. Chim. Acta. 310. 265-267 (2000)
K.Sakai 等 3 人:“含有萘基的六亚氨基穴位配位体;单核配合物的结构表征和对硝基磷酸酯水解的催化作用”Inorg. 265-267 (2000)。
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K.Sakai, 他3名: "A Hexaimino Cryptand containing Naphthyl Groupsi Structural Characterizatiof of 〜"Inorg.Chim.Acta. 310. 265-267 (2000)
K.Sakai 等 3 人:“含有萘基的六亚氨基穴状配位体 ~”Inorg.Chim.Acta. 310. 265-267 (2000)
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- 影响因子:0
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K.Sakai と他6名: "Oscillation of Membrane Potential in Imonobilized DNA Membranes"J.Phys.Chem.B. 104. 9864-9872 (2000)
K. Sakai 和其他 6 人:“固定化 DNA 膜中膜电位的振荡”J.Phys.Chem.B. 104. 9864-9872 (2000)
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K.Sakai, 他5名: "A new method for synthesis of allene, including an potically active form, from aldehydes and alkenyl aryl sulfoxides 〜"Tetrahedron. (in press). (2003)
K.Sakai 和其他 5 人:“从醛和烯基芳基亚砜合成丙二烯的新方法,包括政治上活跃的形式〜”Tetrahedron(2003 年出版)。
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T. Tsubomura, Takayuki Tanihata, Tetsuya Yamakawa, Rakuko Ohmi, Tsuyoshi Tamane, Akon Higuchi, Akira Katoh, and Sakai: "Synthesis and Structure of New Binuclear Organopaladium Macrocyclic Complexes"Organometallics. 20. 3833-3835 (2001)
T. Tsubomura、Takayuki Tanihata、Tetsuya Yamakawa、Rakuko Ohmi、Tsuyoshi Tamane、Akon Higuchi、Akira Katoh 和 Sakai:“新型双核有机钯大环配合物的合成和结构”有机金属化合物。
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