Synthesis, Spectroscopic Characterization, Structural Studies, and In Vitro Antitumor Activities of Pyridine-3-carbaldehyde Thiosemicarbazone Derivatives
Table 2
Selected bond distances (Å), bond angles (°), and torsion angles (°) of two different crystals, obtained for 7.
Distances
Angles
Torsion angles
N1-C2
1.338(5) 1.338(5)
C7-N2-N3
116.4(3) 114.5(3)
C3-C7-N2-N3
179.8(3) −179.1(3)
N1-C6
1.332(5) 1.342(5)
C8-N3-N2
119.2(3) 120.4(3)
C7-N2-N3-C8
177.2(4) 177.0(4)
C7-N2
1.272(5) 1.280(5)
N3-C8-S1
120.0(3) 118.7(3)
C4-C3-C7-N2
1.7(6) −1.7(6)
N2-N3
1.378(5) 1.367(5)
N3-C8-N4
117.9(4) 117.9(3)
C2-C3-C7-N2
−178.1(4) 179.4(4)
C8-N3
1.354(5) 1.348(5)
N4-C8-S1
122.1(3) 123.4(3)
N4-C8-N3-N2
4.1(6) 4.3(5)
C8-S1
1.689(4) 1.697(3)
N1-C2-C3
123.6(4) 124.2(4)
C4-C5-C6-N1
−0.1(6) 1.0(6)
C8-N4
1.325(5) 1.309(5)
C6-C5-I1
118.3(3) 118.2(3)
N1-C2-C3-C7
179.5(4) 179.6(4)
The first and second values of these bond parameters correspond to the minor and major fractions of crystals obtained for 7, respectively.
