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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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how do you relate structure to fluorescence? Give at least three structural characteristics of a fluorescent molecule. (Discuss the presence of
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- SOLVE STEP BY STEP IN DIGITAL FORMAT Explain the underlined paragraph, make it extensive and unambiguous, support its foundations in biochemistry and quantum mechanics. The sample substance used is 1,1-diphenyl-2-picryl-hydrazyl (DPPH). This organic compound is a relatively stable free radical which has an unpaired valence electron at one atom of the nitrogen bridge. The orbital motion of the electron is almost cancelled by the molecular structure. Therefore the g-factor of the electron is almost equal to that of a free electron. In its polycrystalline form the substance is very well suited for demonstrating electron spin resonance because it has an intense ESR line, which, due to exchange narrowing, has a small width.arrow_forwardIf you had a sample which contained both copper ion and cobalt ion, what wavelength ranges would you expect to show significant absorbance?arrow_forwardWhat is the frequency observed with a wavelengh of (4.0x10^-7) m? Answer with 2 significant figures and it must be in scientific notation. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10arrow_forward
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