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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
51
pubmed:dateCreated
2008-12-19
pubmed:abstractText
The expectation values for stretch and momentum in O-H and O-D bonds of the H-O-D molecule subjected to UV pulses effecting selective cleavage of these bonds have been analyzed to decipher the mechanistic basis of selective dissociation. Fully quantum dynamical calculations using both the ground and excited potential energy surfaces with different initial states and UV pulses reveal that prior stretch in a bond before transferring it to the repulsive first excited-state ensures preferential dissociation of this bond. The sampling of large stretch values and a quick downhill motion in the channel corresponding to dissociation of the prestretched bond on the upper surface are seen to underlie this preferential dissociation.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Dec
pubmed:issn
1520-5215
pubmed:author
pubmed:issnType
Electronic
pubmed:day
25
pubmed:volume
112
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
13302-7
pubmed:year
2008
pubmed:articleTitle
An examination of the expectation value profiles for average stretch and momentum in O-H and O-D bonds of the HOD molecule to determine their role in selective photodissociation.
pubmed:affiliation
Department of Chemistry, Indian Institute of Technology Bombay, Powai 400 076, India.
pubmed:publicationType
Journal Article