@article{
 title = {Unimolecular Photochemistry of N-Alkenes Studied by Photodissociation - Photoionization Mass-Spectrometry},
 type = {article},
 year = {1993},
 keywords = {ions,isomerization,phase},
 pages = {65-72},
 volume = {4},
 websites = {<Go to ISI>://A1993KF52900010},
 id = {dbcc60c4-34b6-346f-88b6-7af90cb6e0af},
 created = {2015-05-08T02:32:47.000Z},
 file_attached = {false},
 profile_id = {f8c267c4-4c39-31dc-80fa-3a9691373386},
 group_id = {63e349d6-2c70-3938-9e67-2f6483f6cbab},
 last_modified = {2015-05-08T12:56:00.000Z},
 tags = {Elsevier Science Inc},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 source_type = {Journal Article},
 notes = {<m:note>Times Cited: 11<m:linebreak/>Article<m:linebreak/>English<m:linebreak/>Cited References Count: 20<m:linebreak/>Kf529</m:note>},
 abstract = {The 193-nm unimolecular photochemistry of n-alkenes from C5 to C-14 is studied by photodissociation-photoionization mass spectrometry (PDPI/MS). In PDPI/MS, a UV laser induces neutral unimolecular photodissociation. The resulting neutral fragments and any remaining parent molecules are then softly ionized with coherent vacuum UV radiation and mass analyzed. Photodissociation of n-alkenes is dominated by cleavage of the beta C-C bond. Products of alpha- and gamma-cleavage are typically less than 20% as abundant as the beta-cleavage fragments. Secondary fragmentation of the primary products occurs both by neutral fragmentation during photodissociation and by ionic fragmentation during photoionization. The energetics of the neutral secondary reactions indicate that between 400 and 500 kj/mol is consumed during photodissociation. The abundances of many secondary fragmentation products decrease with increasing molecular size. Because neutral fragmentation occurs without significant isomerization, PDPI/MS provides structural information that is not available from ionic fragmentation in conventional mass spectrometric experiments.},
 bibtype = {article},
 author = {Vanbramer, S E and Ross, P L and Johnston, M V},
 journal = {Journal Of The American Society For Mass Spectrometry},
 number = {1}
}

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In PDPI/MS, a UV laser induces neutral unimolecular photodissociation. The resulting neutral fragments and any remaining parent molecules are then softly ionized with coherent vacuum UV radiation and mass analyzed. Photodissociation of n-alkenes is dominated by cleavage of the beta C-C bond. Products of alpha- and gamma-cleavage are typically less than 20% as abundant as the beta-cleavage fragments. Secondary fragmentation of the primary products occurs both by neutral fragmentation during photodissociation and by ionic fragmentation during photoionization. The energetics of the neutral secondary reactions indicate that between 400 and 500 kj/mol is consumed during photodissociation. The abundances of many secondary fragmentation products decrease with increasing molecular size. Because neutral fragmentation occurs without significant isomerization, PDPI/MS provides structural information that is not available from ionic fragmentation in conventional mass spectrometric experiments.","bibtype":"article","author":"Vanbramer, S E and Ross, P L and Johnston, M V","journal":"Journal Of The American Society For Mass Spectrometry","number":"1","bibtex":"@article{\n title = {Unimolecular Photochemistry of N-Alkenes Studied by Photodissociation - Photoionization Mass-Spectrometry},\n type = {article},\n year = {1993},\n keywords = {ions,isomerization,phase},\n pages = {65-72},\n volume = {4},\n websites = {<Go to ISI>://A1993KF52900010},\n id = {dbcc60c4-34b6-346f-88b6-7af90cb6e0af},\n created = {2015-05-08T02:32:47.000Z},\n file_attached = {false},\n profile_id = {f8c267c4-4c39-31dc-80fa-3a9691373386},\n group_id = {63e349d6-2c70-3938-9e67-2f6483f6cbab},\n last_modified = {2015-05-08T12:56:00.000Z},\n tags = {Elsevier Science Inc},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n source_type = {Journal Article},\n notes = {<m:note>Times Cited: 11<m:linebreak/>Article<m:linebreak/>English<m:linebreak/>Cited References Count: 20<m:linebreak/>Kf529</m:note>},\n abstract = {The 193-nm unimolecular photochemistry of n-alkenes from C5 to C-14 is studied by photodissociation-photoionization mass spectrometry (PDPI/MS). 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