SECONDARY $alpha$-DEUTERIUM ISOTOPE EFFECT. THE MECHANISM OF THE CIS-TRANS CATALYZED ISOMERIZATION OF MALEIC ACID

Journal Article · Wed Apr 19 23:00:00 EST 1961 · Journal of the American Chemical Society (U.S.)

DOI:https://doi.org/10.1021/ja01469a020· OSTI ID:4017848

Seltzer, S

The secondary alpha -deuterium isotope effect in the potassium thiocyanate-cathlyzed isomerization of maleic acid2,3-d/sub 2/ wss measured over the temperature range 15 to 80 deg . From the data the net change in the carbon- hydrogen vibrational frequencies in going from the ground state to the transition state are evaluated, and it appears as if the transition state lies a little more than half way along the path between a trigonal and tetrahedral carbon atom. The infrared spectrum of maleic anhydride-d/sub 2/ is measured and compared with that for maleic anhydride. (auth)

• Research Organization: Brookhaven National Lab., Upton, N.Y.
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-018045
• OSTI ID: 4017848
• Journal Information: Journal of the American Chemical Society (U.S.), Journal Name: Journal of the American Chemical Society (U.S.) Vol. Vol: 83; ISSN JACSA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CARBON
CATALYSIS
CHEMISTRY
CYANIDES
DEUTERIUM COMPOUNDS
HYDROGEN
INFRARED RADIATION
ISOMERS
ISOTOPE EFFECTS
MALEIC ACID
MEASURED VALUES
ORGANIC ACIDS
ORGANIC SULFUR COMPOUNDS
PREPARATION
SPECTRA
TEMPERATURE
THIOCYANATES
THIOCYANIDES