In the title compound, C(21)H(18)N(2)O(3)S, the dihedral angle between the naphthalene and quinoline ring systems is 55.53 (2)°, and the torsion angle involving the connecting C-S-O-C atoms is 87.60 (3)°. In the crystal structure, weak inter-molecular C-H⋯O hydrogen bonds connect mol-ecules into chains along [100] and there are π-π stacking inter-actions between pairs of chains with a centroid-...

The mol-ecule of the title compound, C(13)H(12)ClNO(2)S, is bent at the S atom with a C-SO(2)-NH-C torsion angle of -54.8 (2)°. The dihedral angle between the two aromatic rings is 71.6 (1)°. An intra-molecular N-H⋯Cl hydrogen bond is observed. The crystal structure features inversion-related dimers formed by pairs of N-H⋯O hydrogen bonds.

In the title compound, C(14)H(13)Cl(2)NO(2)S, the mol-ecule is bent at the S atom with an C-SO(2)-NH-C torsion angle of -69.9 (2)°. The dihedral angle between the sulfonyl and aniline benzene rings is 44.0 (1)°. The crystal structure features inversion dimers linked by pairs of N-H⋯O hydrogen bonds. An intra-molecular N-H⋯Cl hydrogen bond is also observed.

In the title compound, C(23)H(26)N(2)O(2)S, the sulfur-bound phenyl group is aligned approximately parallel to one of the two rings of the benzhydryl group, making a dihedral angle of 1.15 (9)°. The other forms a dihedral angle of 59.20 (9)° with the phenyl group bound to the S atom. In the crystal, mol-ecules are linked into strands along [100] by weak C-H⋯O contacts. Weak C-H⋯π inter-actions ...

In the title compound, C(29)H(26)N(2)O(3)S, the central imidazolidine ring adopts an envelope conformation with the N atom bearing the benzyl ring at the flap. The S atom has distorted tetra-hedral geometry. The benzyl and tosyl rings are oriented at a dihedral angle of 52.1 (1)°. The phenyl rings connected to the imidazolidine ring form a dihedral angle of 28.7 (1)°.

In the title compound, C(7)H(7)BrN(2)S, the thio-urea moiety is nearly planar (r.m.s. deviation = 0.004 Å) and it forms a dihedral angle of 66.72 (15)° with the benzene ring. The C-N-C-N2 torsion angle is 15.1 (4)°. In the crystal, mol-ecules are linked via N-H⋯S and N-H⋯N hydrogen bonds into sheets lying parallel to (101).

Shot putting is an important component of track and field events and the throwing distance (s, m) is the greatest concern of coaches and athletes. There are mainly three major factors affecting throwing distance: the initial velocity (v, m/s), release angle (A, °) and release height (h, m) in shot push. So far, it is common to use the physical kinematics knowledge in the research of shot puttin...

Will exercise-induced cardiovascular workload be monitored by Electrocardiogram (ECG) waveform morphology? The discrimination ability of ECG morphology from 30 subjects was tested for distinguishing states between exercise and relaxation in terms of side lengths, lengths of high lines, angles, perimeters and areas of triangle QRS and triangle T. As a result, 4 characters from triangle QRS had s...

In the title compound, C15H11F2N3O2S, the dihedral angle between the fluoro-benzene rings is 88.43 (10)° and that between the central semithiocarbazide grouping is 47.00 (11)°. The dihedral angle between the amide group and attached fluoro-benzene ring is 50.52 (11)°; the equivalent angle between the carbonyl-thio-amide group and its attached ring is 12.98 (10)°. The major twists in the mol-ecu...

In the title compound, C(14)H(13)Cl(2)NO(2)S, the dihedral angle between the aromatic rings is 62.21 (7)° and the C-S-N-C group adopts a gauche conformation [torsion angle = 60.22 (17)°]. In the crystal, N-H⋯O hydrogen bonds link the mol-ecules into C(4) chains propagating in [010]. A short inter-molecular Cl⋯O contact of 3.1115 (17) Å is seen.