Spectroscopic Characterization of Intermediates in the Iron Catalyzed Activation of Alkanes

[摘要] The present report begins with a brief survey of recent hypervalent iron chemistry and mentions two previously reported ferrate papers funded by the DOE/BES grant. The focus is then shifted to the seven publications acknowledging support of the grant that have not been reported since the last Progress Report, DOE/ER/14340-9, was prepared. These papers deal with: (a) the successful use of an ATR element in a stopped-flow infrared spectrometer, (b) the rationalization of a depolarization of a LiClO4 solution in polyethylene oxide high polymer, (c) an analysis of several coupled ultrasonic relaxations observed in solutions of pentoses undergoing isomerization, (d) the combination of ultrasonic absorption and Raman scattering measurements to elucidate zinc thiocyanate solutions in water, (e) the use of NMR to determine stability constants when LiClO4:12-crown-4 is dissolved in acetonitrile and in methanol, (f) the possible existence of triple ions in low permittivity solutions, and (g) the properties of a high surface area ceria aerogel. Collectively, these papers illustrate advantages of bringing several modern experimental techniques to bear on complex chemical systems.

[发布日期] 2007-05-28

[学科分类] 化学（综合）

[关键词] ABSORPTION;ACETONITRILE;ALKANES;CHEMISTRY;DEPOLARIZATION;FERRATES;INFRARED SPECTROMETERS;IRON;ISOMERIZATION;METHANOL;PENTOSES;PERMITTIVITY;POLYETHYLENE GLYCOLS;PROGRESS REPORT;SURFAC