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Citation: Hu Jian-Zhi, Mao Sheng-Hua, Feng Han-Qiao, Zhou Jin-Yuan, Deng Feng, Yang Nian-Hua, Li Li-Yun, Ye Chao-Hui. ¹H NMR Studies of Plastic Organic Solids[J]. Acta Physico-Chimica Sinica, ;1997, 13(01): 16-19. doi: 10.3866/PKU.WHXB19970104 shu

¹H NMR Studies of Plastic Organic Solids

1.
State Key Laboratory of Magnetic Resonance nd Atomic and Molecular Physics,Wuhan Institute of Physics,The Chinese Academy of Sciences,Wuhan 430071

Received Date: 31 July 1996
Available Online: 15 January 1997

The 1H MAS spectrum of a plastic organic solid is usually composed of a high-resolution component and a broadline component. The high-resolution component corresponds to a plastic phase, while the broadline component corresponds to the rigid Phase. The high-resolution spectrum of the plastic phase can be observed by the echo-MAS experiment with a long echo time; the high-resolution spectrum of the whole 1H system can be observed by the CRAMPS technique, mainly coming from the contribution of the rigid phase at usual temperature. It is shown that combination of CRAMPS with 1H MAS and echo-MAS is an effective way for studying the ratio of the plastic phase to the rigid phase, molecular structure and states of motion in organic solids.
- Solid-state ¹H NMR,
- Plastic organic solid,
- MAS,
- Echo-MAS,
- CRAMPS
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1H NMR Studies of Plastic Organic Solids

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¹H NMR Studies of Plastic Organic Solids