Isotope enrichment and stereochemistry of the products from the reaction of electronically excited iodine monochloride with cis- and trans-1,2-dibromoethylene

Journal Article · Wed Nov 21 00:00:00 EST 1979 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00518a008· OSTI ID:5675587

Datta, S; Brauman, J I; Zare, R N

The reaction of electronically excited iodine monochloride with cis- and trans-1,2-dibromoethylene has been studied in detail. Selective excitation of I/sup 37/Cl, using a CW dye laser, gave cis- and trans-1-bromo-2-chloroethylene products containing up to 78.4 and 73.9% /sup 37/Cl, respectively. The quantum yield of the two products together was about 30%. The product stereochemistry for the reaction of ICl* with 1,2-dibromoethylene is similar to that of free Cl atoms, but differs from that of the competing dark reaction with ICl. A mechanism for reaction with ICl* giving preferential retention of geometry is proposed. 1 figure, 5 tables.

• Research Organization: Stanford Univ., CA
• OSTI ID: 5675587
• Journal Information: J. Am. Chem. Soc.; (United States), Vol. 101:24
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BROMINATED ALIPHATIC HYDROCARBONS
PHOTOCHEMICAL REACTIONS
CHLORINE 35
LASER ISOTOPE SEPARATION
CHLORINE 37
IODINE CHLORIDES
DYE LASERS
EXCITED STATES
STEREOCHEMISTRY
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHLORINE ISOTOPES
ENERGY LEVELS
HALIDES
HALOGEN COMPOUNDS
HALOGENATED ALIPHATIC HYDROCARBONS
IODINE COMPOUNDS
ISOTOPE SEPARATION
ISOTOPES
LASERS
LIGHT NUCLEI
NUCLEI
ODD-EVEN NUCLEI
ORGANIC BROMINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
SEPARATION PROCESSES
STABLE ISOTOPES
400500* - Photochemistry
400203 - Isotope Exchange & Isotope Separation- (-1987)