左旋多巴宽频太赫兹光谱研究 下载: 1141次
Broadband Terahertz Spectroscopy of Levodopa
1 中国科学院上海应用物理研究所, 上海 201800
2 中国科学院大学, 北京 100049
3 中国科学院上海高等研究院, 上海 201210
4 天津大学, 天津 300072
图 & 表
图 1. L-DOPA结构示意图
Fig. 1. Diagram of L-DOPA structure
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图 2. 室温下,L-DOPA的宽频太赫兹吸收光谱
Fig. 2. Broadband THz absorption spectra of L-DOPA at room temperature
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图 3. L-DOPA的太赫兹吸收光谱
Fig. 3. THz absorption spectra of L-DOPA
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图 4. L-DOPA太赫兹吸收光谱的温度依赖
Fig. 4. Temperature dependence of THz absorption spectra of L-DOPA
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图 5. L-DOPA的太赫兹吸收光谱
Fig. 5. THz absorption spectra of L-DOPA
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图 6. L-DOPA在1.90,2.95,3.27,9.46,10.57,11.01 THz处的振动模式
Fig. 6. Vibrational modes of L-DOPA at 1.90, 2.95, 3.27, 9.46, 10.57, and 11.01 THz
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表 1L-DOPA光谱比较以及吸收峰的振动模式
Table1. Comparison of spectra and vibrational modes of absorption peaks of L-DOPA
Experimental /THz | Theoretical /THz | Vibrational mode assignment |
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293 K | 83 K | 0 K | | 1.68 | 1.71 | 1.90 | Collective vibration; molecule deformation | 2.05 | 2.01 | 2.26 | Collective vibration; mainly from ν (N(1))+t(—C(1)O(1)) | 2.38 | 2.49 | 2.50 | Collective vibration; molecule deformation | 2.76 | 2.80 | 2.95 | Collective vibration | 3.14 | 3.23 | 3.27 | Collective vibration;mainly from ν (N(1),—C(3)H2) | 3.50 | 3.55 | | | 3.80 | 3.92 | 3.89 | Mainly from w (Ar—O(4)H, —C(1)O(1))+r (N(1)) | 4.45 | | 4.47 | Collective vibration; mainly from t (N(1))+δtw(—C(1)O(1)) | 5.02 | | 5.24 | Collective vibration; mainly fromr (N(1)) | 5.58 | | 5.89 | Mainly from Φ (R) | 6.01 | | 6.53 | Mainly from ν(side chain) | 7.64 | | 7.47 | Collective vibration; mainly from w (C(5)H) | 9.14 | | 9.21 | Mainly from ν(—C(3)H2) | 9.47 | | 9.46 | Mainly from ν(—C(3)H2) | 9.96 | | 9.87 | Mainly from ν(—C(3)H2, N(1)) | 10.75 | | 10.57 | Mainly from Φ (R);ν (N(1)) | | | 11.01 | Mainly from δ (Ar—O(3)H, —O(4)H) | 12.63 | | 12.39 | Mainly from ν (N(1),—C(3)H2) | 13.79 | | 13.78 | Mainly from w(C(5)H(9), C(8)H(10)) | 14.28 | | 13.98 | Mainly from w(C(5)H(9), C(8)H(10)) |
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朱中杰, 任冠华, 成超, 吴志鹏, 张建兵, 韩家广, 赵红卫. 左旋多巴宽频太赫兹光谱研究[J]. 中国激光, 2019, 46(6): 0614017. Zhongjie Zhu, Guanhua Ren, Chao Cheng, Zhipeng Wu, Jianbing Zhang, Jiaguang Han, Hongwei Zhao. Broadband Terahertz Spectroscopy of Levodopa[J]. Chinese Journal of Lasers, 2019, 46(6): 0614017.