Work assessment of spectral analysis of Jilin University in March of the 22nd spring -00079

Random questions , The whole set , It's just part of it

​ Random questions , The whole set , It's just part of it

​ Random questions , The whole set , It's just part of it
Jilin University 22 In the spring 3 month 《 Spectral analysis 》 Homework assessment -00079
Total score of test paper :100 score :100
One 、 Short answer ( common 5 Two questions , common 40 branch )
1. What useful information can hydrogen nuclear magnetic resonance spectroscopy provide in structural analysis ？

2. What useful information can infrared spectroscopy provide in structural analysis ？

3. Theoretically , Each vibration degree of freedom produces an absorption peak in the infrared spectrum , But the actual infrared spectrum

4. Visible light area 、 Ultraviolet light region 、 Infrared light area 、 Radio wave is one of the four electromagnetic wave regions , What are the maximum and minimum energy regions respectively ？

5. The characteristics of infrared spectrum are briefly described .

Two 、 A term is used to explain ( common 10 Two questions , common 20 branch )
6. Vibrational circular dichroism ：

7. Redshift

8. Carbon γ- effect

9. Magnetic equivalent to hydrogen nucleus ：

10. Chromophore

11. Chromophore ：

12. Emission spectrum ：.

13. Multi charged ions ：

14. Chemical shift ：

15. Shielding effect ：

3、 ... and 、 Other questions ( common 4 Two questions , common 40 branch )
16. A compound C8H8O2, According to the following 1H-NMR The spectrum infers its structure , And explain the basis .
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17. A compound C8H10O(M=122), The structure of the compound is analyzed according to the following spectrum , And explain the basis .
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18. Some oxygen-containing compound molecules have no symmetry , According to the following 13C-NMR The spectrum determines the structure , And explain the basis .
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19. A colorless or yellowish organic liquid , It has a pungent smell , Boiling point is 145.5℃, The molecular formula is C8H8, Its infrared spectrum is shown in the figure below , Try to judge the structure of the compound .
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