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Photochemical reaction processes during vacuum-ultraviolet irradiation of water ice

Paper ID Volume ID Publish Year Pages File Format Full-Text
31286 44732 2013 16 PDF Available
Title
Photochemical reaction processes during vacuum-ultraviolet irradiation of water ice
Abstract

The photoprocesses of water ice play an important role in regions of interstellar space, such as interstellar clouds and outer solar systems. Vacuum-ultraviolet absorption of water ice leads to dissociation of water molecules, and allows subsequent reactions of photoproducts on/in ice. There have been many laboratory studies that identify photoproducts and estimate product yields, reaction mechanisms and energy partitioning in the reaction products. Among them, the experimental approaches aimed at understanding the photoprocesses on the water ice surface can give new insight into the chemical reaction network in interstellar space. In this review, we focus on photochemical processes of water ice relevant to surface astrochemistry following vacuum-ultraviolet photolysis of water ice at a low temperature from a surface reaction dynamics’ point of view.

► A comprehensive reaction processes following vacuum-ultraviolet photolysis of water ice is described. ► Reaction mechanisms are studied from a surface reaction dynamics’ point of view. ► Hot molecules are photodesorbed. ► Experimental studies on vacuum-ultraviolet photochemistry of low temperature water ice are briefly reviewed. ► Surface astrochemistry in regions of interstellar space is discussed.

Keywords
ASW, amorphous solid water; PCI, polycrystalline ice; DF, direct formation; ED, electron deflection; ESR, electron spin resonance; FTIR, Fourier transform infrared; HAB, hydrogen abstraction; HEELS, high-resolution electron energy loss spectroscopy; HR, h
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology C: Photochemistry Reviews - Volume 16, September 2013, Pages 46–61
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us