Synthesis, Structure, DNA Interaction, and SOD Activity of Three Nickel(II) Complexes Containing L-Phenylalanine Schiff Base and 1,10-Phenanthroline
Table 3
Hydrogen bond lengths (Å) and bond angles (°) for complexes 1, 2, and 3.
D−H⋯A
d(D−H)
d(H−A)
d(D−A)
∠(DHA)
Complex 1
O4–H4⋯O2#1
0.82
1.79
2.609(4)
173.4
C26–H26⋯O4
0.93
2.60
3.141(5)
117.9
O(5′)–H(5A′)⋯O(2)
0.82
2.15
3.175(5)
136.8
O(5)–H(5A)⋯O(2)
0.82
2.02
2.765(8)
149.9
Complex 2
O4–H4⋯O2#1
0.82
1.76
2.576(4)
170.4
C32–H32⋯O2#3
0.93
2.36
3.274(5)
166.8
Complex 3
O(16)–H(16)⋯O(2)
0.82
2.03
2.828(10)
163.2
O(15)–H(15)⋯O(18)#4
0.82
1.83
2.640(10)
171.2
O(5)–H(5)⋯O(7)#5
0.82
1.93
2.697(8)
154.2
O(10)–H(10)⋯O(12)#5
0.82
1.78
2.588(8)
169.9
O(17)–H(17)⋯O(2)#6
0.82
2.00
2.733(9)
148.3
O(19)–H(19)⋯O(7)#6
0.82
2.03
2.853(9)
177.6
O(18)–H(18)⋯O(11)#6
0.82
1.86
2.659(9)
166.1
O(20)–H(20)⋯O(13)#7
0.82
2.06
2.884(12)
179.0
O(20)–H(20)⋯O(14)#7
0.82
2.55
2.966(12)
112.5
Symmetry codes for the complex: #1: 0.5−x, 0.5−y, and 1−z; #2: 2−x, −y, and 1−z; #3: 1−x, −y, and 1−z; #4: −x+1, −y + 1, and −z; #5: −x + 2, −y + 1, and −z + 1; #6: x−1, y, and z; #7: x, y, and z + 1.
