Report for Analytical Chemists
A NEW JOURNAL
ORGANIC MAGNETIC RESONANCE FIRST ISSUE FEB.
1969
This international journal is devoted to the rapid publication of original work dealing with the applications of NMR, NQR and ESR to the general problems of structural organic chemistry. In its wider context this promises papers dealing with such branches as biochemistry, medical biochemistry, pharmacology etc. Authors who have experienced problems in getting their spectra published will welcome OMR. With the text journal is a Spectral Supplement, containing spectra discussed in the papers - clearly reproduced in a standard format-so that the reader can always have in front of him the spectrum under discussion. Organic Magnetic Resonance together with its Spectral Supplement will be fully indexed and will build up to form a particularly valuable NMR data compilation. Editor-in-Chief Dr. Eric F. Mooney University of Birmingham P.O. Box 363, Birmingham 15, England.
tions. On the other hand, for the edge-interstitial position (X), only a 50% attenuation should occur, as only half of the foreign atoms are shadowed along the (01) direction. The other half are shadowed along the equivalent (10) direction. In a real (i.e., three-dimensional) lattice, the situation is slightly more complex, but the same basic principles apply. Hence, by simultaneously observing the interaction of the beam with the lattice and with specific embedded foreign atoms, one obtains a quantitative measure of the fraction of foreign atoms located along a particular row. By repeating the experiment in different crystal directions, the exact location (s) of the foreign atoms can be established. Figure 10 illustrates the three types of impurity behavior that have been observed in these lattice location studies in silicon. (1) The Bi case: Large and essentially equal attenuations occur along both the (111) and
