Journal of Atomic and Molecular Physics / 2012 / Article / Fig 8

Research Article

Polymorphism, Hydrogen Bond Properties, and Vibrational Structure of 1H-Pyrrolo[3,2-h]Quinoline Dimers

Figure 8

Raman spectra of crystalline PQ as a function of pressure: normal pressure, 1 atm (a); 2 × 103 atm (b); 22 × 103 atm (c); 35 × 103 atm (d); 1 atm (e), at the end of pressure cycle. The low and high frequency regions are normalized separately to their highest bands. A region between 1300–1370 cm−1, exhibiting a strong Raman peak from diamond culets, was removed.

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