Research Article
Synthesis, Structure, DNA Interaction, and SOD Activity of Three Nickel(II) Complexes Containing L-Phenylalanine Schiff Base and 1,10-Phenanthroline
Table 1
Crystallographic and structure refinement data for complexes 1, 2, and 3.
| Complex | 1 | 2 | 3 |
| Empirical formula | C30H29N3O5Ni | C33H27N3O4Ni | C95H101N9O20Ni3 | Formula weight | 570.27 | 588.28 | 1864.98 | Wavelength (Å) | 0.71073 | 0.71073 | 0.71073 | Crystal system | Monoclinic | Triclinic | Triclinic | Space group | C2/c | P-1 | P-1 | a (Å) | 26.741(3) | 10.8240(8) | 12.7068(10) | b (Å) | 18.1651(17) | 11.9041(9) | 13.5015(14) | c (Å) | 11.8350(9) | 13.0879(11) | 29.9214(17) | α (°) | 90 | 67.226(10) | 83.667(2) | β (°) | 108.528(2) | 73.566(2) | 82.7470(10) | γ (°) | 90 | 64.094(10) | 63.9790(10) | (Å3) | 5450.9(8) | 1385.43(19) | 4567.4(6) | Z | 8 | 2 | 2 | Dcalc (Mg·m−3) | 1.390 | 1.410 | 1.356 | F(000) | 2384 | 612 | 1956 | Absorption coefficient (mm−1) | 0.756 | 0.744 | 0.687 | Crystal size (mm) | 0.43 × 0.38 × 0.35 | 0.23 × 0.20 × 0.12 | 0.25 × 0.21 × 0.18 | θ range | 2.66 to 25.02 | 2.19 to 25.01 | 2.57 to 25.02 | Index ranges | –25 ≤ h ≤ 31 | –12 ≤ h ≤ 12 | –15 ≤ h ≤ 10 | | –21 ≤ k ≤ 21 | –14 ≤ k ≤ 11 | –16 ≤ k ≤ 16 | | –13 ≤ l ≤ 14 | –15 ≤ l ≤ 13 | –35 ≤ l ≤ 35 | Reflections collected | 13562 | 7109 | 29803 | Unique reflections | 4816 | 4791 | 16112 | Rint | 0.0432 | 0.0335 | 0.1085 | Max/min transmission | 0.7777, 0.7368 | 0.9160, 0.8475 | 0.8863, 0.8470 | Data, restraint, parameters | 4816, 3, 366 | 4791, 0, 363 | 16112, 2613, 1155 | Goodness-of-fit on F2 | 1.094 | 0.952 | 1.010 | Final R indices (I > 2σ (I)) | R1 = 0.0432, wR2 = 0.0946 | R1 = 0.0566, wR2 = 0.1350 | R1 = 0.0867, wR2 = 0.1790 | R indices (all data) | R1 = 0.0930, wR2 = 0.1248 | R1 = 0.0820, wR2 = 0.1456 | R1 = 0.1954, wR2 = 0.2540 | Largest diff. peak and hole (e·Å−3) | 0.392, −0.287 | 1.099, −0.500 | 0.788, −0.500 |
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