29 research outputs found
NMR Spectra of Normal and Deuterated Methylacetylenes
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/69834/2/JCPSA6-31-5-1425-1.pd
Nuclear Magnetic Resonance Spectrum of the Triphenylcarbonium Ion
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/71188/2/JCPSA6-34-4-1460-1.pd
Paramagnetic Resonance Absorption in Some Organic Biradicals
Four compounds of the form 4,4âČâpolymethylenebistriphenylmethyl, one compound of the form (1,4âphenylene)bisdiarylmethyl, three compounds of the form (4,4âČâbiphenylene)bisdiarylmethyl, and one compound, 4,4âČâoxybistriphenylmethyl have been shown to possess unpaired electrons by paramagnetic resonance absorption. The resonance spectra of 0.01 M solutions of these compounds in benzene exhibit a hyperfine structure arising from a spherically symmetrical contribution of the magnetic dipole interaction between the unpaired electron and the nuclear magnetic moments of the hydrogen atoms. The gâfactors for the compounds investigated in the first three classes were found to be 2.0025±0.0004 and 2.0031±0.0004 for the last compound. Such a close approach of the gâfactor to the free electron value plus the sharpness of the hyperfine structure lines indicates that the anisotropic contributions of the spinâorbit interaction, which would normally lift the degeneracy of the triplet state, are averaged out by the tumbling of the molecules.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/70965/2/JCPSA6-25-4-697-1.pd
A(1,3) strain factors in the hydrobromination of cyclohexenecarboxylic acid
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/33503/1/0000909.pd