SPECTROSCOPIC OBSERVATIONS ON DEFECT ACTIVITIES IN AMORPHOUS ICE
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Date
1990
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Publisher
Ohio State University
Abstract
Defect activities (ionic and orientational) have previously been characterized for cubic ice through FT-IR monitoring of isotopic exchange reactions that produce HOD from $D_{2}O$ isolated in protiated ice. This technique has been extended to amorphous ice in an effort to identify the temperature of onset of orientational defect motion. The orientational defects are best monitored by following the decoupling of vibrationally-coupled neighbor HOD pairs. Techniques for preparing amorphous ice rich in neighbor HOD pairs will be described and decoupling results compared with observations for crystalline ice
Description
Author Institution: Department of Chemistry, Oklahoma State University