OBSERVATION OF NEW SHARP TRANSITIONS IN PARAHYDROGEN CRYSTALS DOPED WITH METHANE
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Date
2001
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Publisher
Ohio State University
Abstract
In the course of studying ionized methane/hydrogen clusters in solid parahydrogen crystals, we accidentally stumbled upon a new set of infrared transitions in the crystal, apparently induced by the methane in the crystal (before ionization). Over 80 sharp absorption features $(\Delta\nu \sim 100 MHz)$ spanning $2 cm^{-1}$ were observed in the region between hydrogen's $Q_{1}(0)$ and $Q_{1}(1)$ vibrational transitions. The spectroscopy of parahydrogen crystals in this region is well understood, and it was a complete surprise to observe the appearance of new transitions. In this talk we present the data and discuss our current progress in the understanding of this very unexpected spectrum.
Description
Author Institution: The University of Chicago; Department of Chemistry, The University of Chicago; Department of Astronomy \& Astrophysics, and the Enrico Fermi Institute, Graduate School of Science, Kyoto University