| Lattice Parameter | Total Energy (eV) | Bond Angle (˚) | Buckling Distance (Å) | Bond Length (Å) | Bond Order | ||||
2D | Pr. | Ref. |
| Pr. | Ref. | Pr. | Ref. | Pr. | Ref. |
|
G | 2.46 | 2.46 [47] | −310.28844 | 120 | 120 [22] |
|
| 1.42 | 1.42 | 3.05 |
Si | 3.88 | 3.87 [23] | −213.55118 | 116.90 | 115.4 [22] | 0.41 | 0.44 [23] [24] | 2.27 | 2.30 [25] [26] 2.279 [27] 2.28 [28] | 2.75 |
Ge | 4.03 | 4.03 [25] 4.02 [13] | −213.79328 | 112.56 |
| 0.68 | 0.64 [24] [25] 0.689 [48] | 2.42 | 2.44 [25] [29] 2.48 [48] | 2.03 |
Sn | 4.66 | 4.62 [38] | −190.06948 | 110.39 | 110 [38] | 0.9 | 0.92 [38] | 2.83 | 2.82 [38] | 1.99 |