Table III.
Statistics of Vertex Distances and Angles in Water Polygons
| O—O distance (Å) |
O—O—O angle (°) |
|||||
|---|---|---|---|---|---|---|
| Histogram peak | Average | Standard deviation | Histogram peak | Average | Standard deviation | |
| Trigon | 2.70 | 2.80 | 0.21 | 59 | 60 | 6 |
| Tetragon | 2.73 | 2.82 | 0.19 | 89 | 87 | 19 |
| Pentagon | 2.73 | 2.79 | 0.15 | 104 | 104 | 12 |
| Hexagon | 2.70 | 2.79 | 0.16 | 112 | 108 | 16 |
| Heptagon | 2.70 | 2.79 | 0.17 | 107 | 110 | 19 |
Average vertex distance and angle increase, whereas the distance standard deviation decreases as the number of polygon vertices increases. Many heptagons are the fusion of smaller polygons. Statistics for each polygon are sampled from a comparable number of data points (∼10,000).