U.S.-Korea Cooperative Research: Chemical and Crystallo- graphic Studies of Silver in Zeolite A

这项建议要求资金允许夏威夷大学化学系Karl Sef博士与釜山国立大学化学系Yang Kim博士进行为期24个月的合作研究计划，以继续对A沸石中银的分子内化学进行合成和结晶学研究。在沸石中制备银团簇的新条件，这可能导致形成高对称性的新簇，将会受到审判。对这些团簇结构的结晶学研究将由x射线衍射法确定。这是一个基础研究项目，涉及A型沸石中银原子和银离子的合成和结构，以及在沸石大空腔内制备这种银的分子络合物。虽然已知金属原子的小原子团簇对各种有机反应具有显著的催化活性，但该项目并不涉及A沸石中银的潜在催化性能。塞夫博士和金博士是备受尊敬的科学家，他们过去曾在美国国家科学基金会补助金编号下成功合作。INT-8316234和INT-8113065。目前的项目将使他们能够继续这一合作。该项目与美韩合作科学计划的目标相关，该计划旨在通过交流科学信息、想法、技能和技术以及通过在互利问题上的合作来提高美国和韩国科学家和工程师之间的合作水平。

This proposal requests funds to permit Dr. Karl Seff, Department of Chemistry, University of Hawaii, to pursue with Dr. Yang Kim, Department of Chemistry, Pusan National University, for a period of 24 months, a program of cooperative research to continue the synthetic and crystallographic study of the intrazeolitic chemistry of silver in zeolite A. New conditions for the preparation of silver clusters within the zeolite, which may result in the formation of new clusters of high symmetry, will be tried. The crystallographic study of the structure of these clusters will be determined by x-ray diffraction methods. This is a basic research project dealing with the synthesis and structure of silver atoms and silver ions in zeolite A and the preparation of molecular complexes of this silver within the large cavity of zeolite. While small clusters of metal atoms are known to have pronounced catalytic activity for a variety of organic reactions, this project is not concerned with the potential catalytic properties of silver in zeolite A. Drs. Seff and Kim are highly respected scientists who have collaborated successfully in the past, under NSF Grants No. INT-8316234 and INT-8113065. The present project will allow them to continue this collaboration. This project is relevant to the objectives of the U.S.-Korea Cooperative Science Program which seeks to increase the level of cooperation between U.S. and Korean scientists and engineers through the exchange of scientific information, ideas, skills, and techniques and through collaboration on problems of mutual benefit.