THE PRIMARY PROCESSES IN THE PHOTOLYSIS OF 1,2-DICHLOROPROPANE.
Item
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Title
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THE PRIMARY PROCESSES IN THE PHOTOLYSIS OF 1,2-DICHLOROPROPANE.
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Identifier
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AAI8409387
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identifier
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8409387
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Creator
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BYUN, HOE-SUP.
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Contributor
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M. H. J. Wijnen
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Date
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1984
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Language
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English
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Publisher
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City University of New York.
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Subject
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Chemistry, Organic
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Abstract
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The photolysis of 1,2-dichloropropane has been investigated in detail at room temperature and at different wavelengths. Studies over a range of exposure times permitted extrapolation of the observed product ratios to zero exposure time. Experiments in the presence and absence of inert deactivators such as SF(,56) and H(,2)O, and H(,2)S as a free radical scavenger indicated the production of three different excited states which decompose as follows: (UNFORMATTED TABLE FOLLOWS).;CH(,2)ClCHClCH(,3)('*) cis and trans CHCl=CHCH(,3) + HCl.;CH(,2)ClCHClCH(,3)('**) CH(,2)=CHCH(,3) + Cl(,2).;CH(,2)=CClCH(,3) + HCl.;CH(,2)ClCHClCH(,3)('***) CH(,2)=CHCH(,3) + 2 (.)Cl.;(TABLE ENDS).;The "one star" excited state is produced predominantly at long, the "three star" excited state at short wavelengths.;The production of cis- and trans-1-chloropropene was followed in detail, first in regard to the cis/trans ratio produced in the primary process, then in regard to variations in this ratio caused by secondary reaction. The data yield an equilibrium value of R(,cis)/R(,trans) = 1.5 for the chlorine atom induced isomerization of 1-chloropropene.;Evidence is presented for the production of 1-chloropropene by chlorine atom addition to 2-chloropropene. The results of this investigation are shown to be consistent with data reported in the literature regarding similar systems.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
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Program
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Chemistry
