Table 1 Pressure coefficients of Raman shift for confined nitrogen and bulk nitrogen.
From: Insertion of N2 into the Channels of AFI Zeolite under High Pressure
Pressure (GPa) | Pressure coefficient of confined nitrogen (ν΄) | Pressure coefficient of bulk nitrogen (ν and ν2) |
|---|---|---|
0.2–2.4 | 3.3 | 2.5 (liquid-N2) |
2.6–5 | 2.9 | 3.1 (β-N2) |
5.4–12.9 | 1.9 | 2.2 (δ-N2) |
15.5–33 | 1.1 | 1.5 (ε-N2) |
