Table 1 Structural and optical properties calculated for isomers varying from Si 15 to Si 20
Isomer | E(au) | rel. E(eV) | Band gap (eV) | Dipole (Debye) | D(nm) | Polarizability/atom | ZPE (eV) | Ovality | UV-VIS lambda max |
---|---|---|---|---|---|---|---|---|---|
15A | −4,342.34404 | 0.00 | 3.051 | 3.097 | 0.72508 | 4.629 | 0.632 | 1.2115 | 525.314 |
15B | −4,342.32497 | 0.52 | 1.889 | 0.959 | 0.72991 | 4.648 | 0.629 | 1.2035 | 871.635 |
15C | −4,342.31698 | 0.74 | 1.971 | 0.525 | 0.72724 | 4.656 | 0.614 | 1.2099 | 750.415 |
15D | −4,342.30761 | 0.99 | 3.441 | 0.027 | 0.75043 | 4.594 | 0.589 | 1.1645 | 431.109 |
16A | −4,631.80268 | 0.18 | 1.954 | 0.00 | 0.75701 | 4.465 | 0.636 | 1.1833 | 750.886 |
16B | −4,631.80953 | 0.00 | 2.450 | 0.54 | 0.73474 | 4.456 | 0.663 | 1.2189 | 583.651 |
16C | −4,631.79720 | 0.33 | 2.250 | 0.76 | 0.75324 | 4.469 | 0.625 | 1.1911 | 630.165 |
17A | −4,921.27172 | 0.8 | 1.053 | 2.384 | 0.70364 | 4.356 | 0.706 | 1.2540 | 1,033.850 |
17B | −4,920.97362 | 8.659a | 0.619 | 0.180 | 0.76368 | 4.494 | 0.886 | 1.4320 | 2,747.970 |
17C | −4,921.30164 | 0.00 | 1.874 | 0.638 | 0.75456 | 4.311 | 0.757 | 1.2104 | 838.4698 |
18A | −5,210.83526 | 0.00 | 2.255 | 2.84 | 0.74512 | 4.177 | 0.80 | 1.2504 | 552.447 |
18B | −5,210.80158 | 0.92 | 1.388 | 0.04 | 0.73920 | 4.178 | 0.74 | 1.2580 | 692.813 |
18C | −5,210.80010 | 0.96 | 1.323 | 0.01 | 0.73906 | 4.178 | 0.73 | 1.2581 | 1,732.74 |
18D | Not converged | ||||||||
19A | −5,500.25750 | 1.98 | 1.878 | 3.45 | 0.7361 | 4.098 | 0.81 | 1.2965 | 700.980 |
19B | −5,500.33041 | 0.00 | 2.198 | 1.93 | 0.7544 | 4.058 | 0.83 | 1.2571 | 643.427 |
19C | −5,500.28806 | 1.15 | 2.351 | 1.21 | 0.7259 | 4.076 | 0.82 | 1.3112 | 678.640 |
20A | −5,789.84528 | 0.00 | 2.7320 | 1.54 | 0.74238 | 3.9476 | 0.92 | 1.3005 | 549.724 |
20B | −5,789.81937 | 0.71 | 2.9045 | 0.00 | 0.75361 | 3.9465 | 0.87 | 1.2813 | 540.264 |
20C | −5,789.76867 | 2.08 | 1.6437 | 0.73 | 0.77313 | 3.9727 | 0.90 | 1.2514 | 756.136 |