ASSIGNMENTS OF THE $sup 35$Cl NUCLEAR QUADRUPOLE RESONANCE SPECTRA IN MULTICHLOROBENZENES BY THE MEASUREMENT OF THE ZEEMAN EFFECT

Journal Article · Mon Oct 01 04:00:00 EDT 1962 · Bull. Chem. Soc. Japan

DOI:https://doi.org/10.1246/bcsj.35.1667· OSTI ID:4737173

Morino, Y; Toyama, M; Itoh, K; Kyono, S

Assignments of the Cl/sup 35/ nuclear quadrupole resonance spectra were made for some polychlorobenzenes by Zeeman studies of single crystals. Three resonance lines in 1,3, 5-trichlorobenzene were assigned, in the order of increasing frequency, to Cl/sub 3/, Cl/sub 1/, and Cl/sub 5/; 2 lower frequencies in 1,2,3, 4-tetrachiorobenzene to Cl/sub 1/ and Cl/sub 4/ and 2 higher ones to Cl/ sub 2/ and Cl/sub 3/; and in pentachiorobenzene, the second highest frequency to the chlorine atom at the para position with respect to the single hydrogen atom. Shifts of the resonance frequencies were accounted for in terms of the induction effect. It is likely that the ortho effect is produced by the direct field arising from the charges on the neighboring atoms rather than the indirect one propagated through the chemical bonds. The interpretation of the 3 frequencies in 1,3,5trichlorobenzene was also attempted from the viewpoint of the intermolecular effect. It was suggested that an induction effect independent of the directions takes place in the crystal among the neighboring molecules. (P.C.H.)

• Research Organization: Tokyo Univ.
• NSA Number: NSA-17-013496
• OSTI ID: 4737173
• Journal Information: Bull. Chem. Soc. Japan, Journal Name: Bull. Chem. Soc. Japan Vol. Vol: 35
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ATOMS
BENZENE
CHEMICALS
CHLORINE 35
CRYSTALS
ELECTRIC FIELDS
FREQUENCY
HYDROGEN
ISOMERS
MAGNETIC FIELDS
MEASURED VALUES
MOLECULES
NUCLEAR STRUCTURE
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
PHYSICS
POLYMERS
RESONANCE
SPECTRA
SPECTRAL SHIFT
SPECTROSCOPY
ZEEMAN EFFECT