Yu-rui TAO, Hong-bo WANG, Hai-hua WANG, Mi ZHOU. Pressure-Induced Phase and Isomer Transition of Dicyandiamide[J]. Spectroscopy and Spectral Analysis, 2022, 42(10): 3046
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 10, 3046 (2022)
Fig. 1. Crystal structure of dicyandiamide
Fig. 2. Raman spectrum of dicyandiamide
Fig. 3. Isomers structures of dicyandiamide
(a): Imino form ; (b): Amino form
(a): Imino form ; (b): Amino form
Fig. 4. High-pressure Raman spectra of dicyandiamide (0~2 300 cm-1)
Fig. 5. Raman spectra of dicyandiamide at 3 000~3 800 cm-1
Fig. 6. Plots for frequency-pressure relationships
Fig. 7. Intensity ratio-pressure curve of dicyandiamide (amino form to imino form)
I ν 1 I ν 2
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Table 1. Raman frequency and assignments of dicyandiamide
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