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Cover Picture (Angew. Chem. Int. Ed. Engl. 3/1991)
Publication year - 1991
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199102171
Subject(s) - cover (algebra) , hyperfine structure , spins , spectroscopy , physics , chemistry , nuclear magnetic resonance , atomic physics , condensed matter physics , quantum mechanics , engineering , mechanical engineering
The cover picture shows how aesthetically appealing the results of modern analytical methods can be. The method is pulsed ESR spectroscopy, which now, long after NMR spectroscopy was revolutionized by pulsed methods, could also lead to a notable improvement in the experimental possibilities of ESR spectroscopy. The result shown in the cover picture is the response signal which was obtained after stochastic excitation of a cobalt complex containing N,O‐ligands. The modulation pattern observed after adding together data from many individual measurements is caused by interaction between the spin of the unpaired electron and the spins of 14 N nuclei. From the frequencies of these oscillations, hyperfine and nuclear quadrupole couplings of the 14 N nuclei may be derived. More about the present state‐of‐the‐art of pulsed ESR spectroscopy is reported by A. Schweiger on p. 265.