標題: Advances in Use of p-H(2) as a Novel Host for Matrix IR Spectroscopy
作者: Bahou, Mohammed
Huang, Chiung-Wei
Huang, Ya-Ling
Glatthaar, Joerg
Lee, Yuan-Pern
應用化學系
應用化學系分子科學碩博班
Department of Applied Chemistry
Institute of Molecular science
公開日期: 1-八月-2010
摘要: A review of recent advances in IR spectroscopy using p-H(2) as a matrix host in our laboratory is presented. The softness of this novel p-H, matrix host not only makes high-resolution spectroscopy feasible but also provides new applications. Molecular motion, such as the rotation of C(2)H(4), internal rotation (torsion) of CH(3)OH, and rotation of CH(3)F about a single axis are characterized in this p-H, matrix. In contrast, no evidence for rotation of CH(3)I and CH(3) was found. The diminution of the cage effect leads to the possibility of production of free radicals via either photolysis in situ or bimolecular reactions of molecules with atoms that are produced in situ from their molecular precursors. Taking advantage of these unique features, we identified the IR spectrum of CH(3) produced from photolysis of CH(3)I and CH(3)S produced from photolysis of CH(3)SCH(3) and CH(3)SSCH(3). The reaction of Cl with CS(2) in solid p-H(2) yields ClSCS instead of ClCS(2). The reaction of Cl with HCOOH in solid p-H(2) yields only a complex, Cl center dot HCOOH, not HCl and HOCO. The presence of o-H(2) in trace proportions turned out to be an important factor in the interpretation of IR spectra of species embedded in solid p-H(2). Experimental techniques to minimize the amount of o-H(2) and to characterize its relative concentration with spectra of H(2)O center dot o-H(2) are discussed.
URI: http://hdl.handle.net/11536/32338
ISSN: 0009-4536
期刊: JOURNAL OF THE CHINESE CHEMICAL SOCIETY
Volume: 57
Issue: 4B
起始頁: 771
結束頁: 782
顯示於類別:期刊論文