Packet 4: Tossup 21

A 2D extension of this technique requires quantifying “blind spot behavior” as a function of frequency and time delay. Xenon and MMM can analyze data produced in this technique, the latter of which (-5[1])can interpret cysteine labels created during SDSL. (15[1])Modulation (-5[1])of an exponential decay signal (15[1])produced (15[1])in this technique’s ESEEM form often suggests anisotropy in one interaction. More peaks are seen in this technique when zero-field (15[1])splitting occurs due to (*) hyperfine (10[1])coupling. (10[2])In (10[1]-5[1])this technique, a system’s (-5[1])splitting energy can be calculated as the product of the Bohr magneton, (10[1]-5[2])g-factor, (-5[2])and magnetic (10[1]-5[1])field. (-5[1])This is the most common technique used to study (-5[1])metal (-5[1])catalytic sites and free radicals. (10[2])For 10 points, (10[2])NMR is the “nuclear” (-5[2])analog (10[2]-5[1])of what technique used to study the spins of electrons? ■END■ (10[8]0[10])

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