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Given that 1,3-butadiene has a UV-vis absorption of 217nm, predict the approximate absorption for the conjugated system in vitamin D3. HQ но -R A. 210 nm В. 230 пm С. 240 nm D. 250 nm E. 270 nm

Given that 1,3-butadiene has a UV-vis absorption of 217nm, predict the approximate absorption for the conjugated system in vitamin D3. HQ но -R A. 210 nm В. 230 пm С. 240 nm D. 250 nm E. 270 nm

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Question:** Given that 1,3-butadiene has a UV-vis absorption of 217 nm, predict the approximate absorption for the conjugated system in vitamin D3. **Molecular Structure:** - The image depicts the chemical structure of vitamin D3, which includes a conjugated system. The conjugated system is evidenced by alternating single and double bonds typically contributing to the UV-vis absorption characteristics of a molecule. **Answer Choices:** A. 210 nm B. 230 nm C. 240 nm D. 250 nm E. 270 nm **Explanation:** The UV-vis absorption of a conjugated system typically shifts to longer wavelengths (higher nm) as the conjugation increases. Understanding this trend helps in predicting the absorption characteristics of vitamin D3 based on its extended conjugated system compared to 1,3-butadiene.
Transcribed Image Text:**Question:** Given that 1,3-butadiene has a UV-vis absorption of 217 nm, predict the approximate absorption for the conjugated system in vitamin D3. **Molecular Structure:** - The image depicts the chemical structure of vitamin D3, which includes a conjugated system. The conjugated system is evidenced by alternating single and double bonds typically contributing to the UV-vis absorption characteristics of a molecule. **Answer Choices:** A. 210 nm B. 230 nm C. 240 nm D. 250 nm E. 270 nm **Explanation:** The UV-vis absorption of a conjugated system typically shifts to longer wavelengths (higher nm) as the conjugation increases. Understanding this trend helps in predicting the absorption characteristics of vitamin D3 based on its extended conjugated system compared to 1,3-butadiene.
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