Table 1.
Crystallographic and experimental data for complexes 1 and 2
| Complexes | 1 | 2 |
|---|---|---|
| Formula | C11H18NiO5 | C10CoH18O9 |
| FW | 288.96 | 355.18 |
| Crystal shape/color | Yellow | brown-red |
| Crystal size/ mm | 0.30 x 0.24 x 0.20 mm | 0.42 x 0.37 x 0.31 mm |
| T/K | 293K | 298 K |
| Crystal system | Monoclinic | Triclinic |
| Space group | P2(1) | P(-1) |
| a/Å | 9.254(4) | 8.153(9) |
| b/Å | 11.450(5) | 9.925(11) |
| c/Å | 12.974(6) | 10.355(12) |
| α/o | 90.00 | 70.530(16) |
| β/o | 92.854(7) | 71.154(15) |
| γ/o | 90.00 | 80.698(16) |
| U/Å3 | 1379.1(11) | 746.3(15) |
| μ/mm-1(Mo-Kα) | 1.413 | 1.192 |
| Dx/g cm-3 | 1.392 | 1.581 |
| Reflections/parameters | 2434/173 | 2546/204 |
| Independent reflections (Rint) | 1203 (0.0478) |
2024 (0.0163) |
| F(000) | 608 | 368 |
| Goodness of fit on F2 | 0.957 | 0.984 |
| R1, wR2 [I ≥ 2σ(I)]a) | 0.0554, 0.1469 | 0.0520, 0.1384 |
| R1, wR2 (all data)a) | 0.1135, 0.1670 | 0.0645, 0.1480 |
R1 = ∑||Fo|-|Fc||/∑|Fo|, wR2 = [∑w(Fo2-Fc2)2/∑w(Fo2)2]1/2,
w = [σ2(Fo)2+(0.0838((Fo)2+2Fc2)/3)2]+0.0242((Fo)2+2Fc2)/3]-1 for 1
w = [σ2(Fo)2+(0.099((Fo)2+2Fc2)/3)2]-1 for 2