# ZEEMAN QUADRUPOLE SPECTRA OF p-CHLOROANILINE AND p-CHLOROBENZYLCHLORIDE

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 dc.creator Meal, Harlan C. en_US dc.date.accessioned 2006-06-15T12:42:58Z dc.date.available 2006-06-15T12:42:58Z dc.date.issued 1954 en_US dc.identifier 1954-M-6 en_US dc.identifier.uri http://hdl.handle.net/1811/7299 dc.description $^{*}$Present address: The Johns Hopkins University Operations Research Office, 6410 Connecticut Avenue, Chevy Chase, Marylana en_US dc.description Author Institution: Mallinckrodt Chemical Laboratory, Harvard University en_US dc.description.abstract The Zeeman quadrupole spectra of $Cl^{35}$ in single crystals of p-chloroaniline and p-chlorobenzylchloride have been observed with a superregenerative spectrometer, using a pair of Helmholtz coils to supply the static magnetic field. Analysis of the spectrum observed with various field directions yields the following information: There are two sets of chlorine atoms in p-chloroaniline with differently oriented field gradients. The angle between the field gradient z axes is $79^{\circ}\pm 1^{\circ}$; the y axes are parallel. Both field gradients have the same asymmetry, $\eta=0.06\pm 0.03$. In p-chlorobenzylchloride there are four sets of chlorines (attached directly to the ring) which have differently oriented field gradients. The z axes are parallel to the edges of a rectangular pyramid with apex angles of $8^{\circ}$ and $67^{\circ}$, both $\pm1^{\circ}$. All four have the same asymmetry, $\eta=0.07\pm 0.02$ The bonds between the chlorine and the ring are calculated to have the following properties: en_US dc.format.extent 116869 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title ZEEMAN QUADRUPOLE SPECTRA OF p-CHLOROANILINE AND p-CHLOROBENZYLCHLORIDE en_US dc.type article en_US