Table 1 Crystallographic data and structural refinement parameters for the single crystals of ionic clathrate hydrate formed in this study.
From: Structure-driven CO2 selectivity and gas capacity of ionic clathrate hydrates
CO2 + N2 + TBAB hydrate with w = 0.200 | CO2 + N2 + TBAC hydrate with w = 0.200 | CO2 + N2 + TBPB hydrate with w = 0.200 | CO2 + N2 + TBPC hydrate with w = 0.200 | |
|---|---|---|---|---|
Lattice | orthorhombic | tetragonal | hexagonal (Possibly orthorhombic) | orthorhombic |
Space group | Imma | P42/m | (Not determined) | Cmmm |
a (Å) | 21.419(4) | 23.870(3) | 12.0602(17) | 12.036(2) |
b (Å) | 25.833(5) | 23.870(3) | 12.0602(17) | 21.145(4) |
c (Å) | 12.218(2) | 12.497(3) | 12.585(3) | 12.685(3) |
R int /Rσ | 0.1211/0.0765 | 0.0758/0.0446 | 0.1302/0.0427 | 0.1087/0.0592 |
