In the title compound, C22H26N4OS, the benzene rings of the (2-methylpropyl)phenyl and 4-methoxyphenyl units form dihedral angles of 66.85 (3) and 25.96 (3)°, respectively, with the triazole ring. The dihedral angle between the two benzene rings is 87.42 (2)°. The –CH(CH3) linkage is disordered over two orientations with occupancies of 0.907 (3) and 0.093 (3). An intramolecular C—H⋯S hydrogen bond generates an S(6) ring motif. Intermolecular N—H⋯S hydrogen bonds and C—H⋯π interactions are observed.
In the title compound, C13H10ClN3O3, prepared by the reaction of 1-chloro-3-isocyanatobenzene with 4-nitrobenzenamine, the two substituent benzene rings are roughly coplanar [inter-ring dihedral angle = 8.70 (7)°]. In the crystal, molecules make cyclic intermolecular associations through two urea–nitro N—H⋯O hydrogen bonds, forming a chain structure [give chain direction] in which there are also weak intermolecular C—H⋯Cl interactions. The urea O atom has only intramolecular aromatic ring C—H⋯O associations.
In the title compound, C21H14ClN3O5, an intramolecular C—H⋯O hydrogen bond generates an S(7) ring motif and the furan and pyrazole rings are almost coplanar, making a dihedral angle of 1.98 (5)°. The pyrazole ring is inclined at dihedral angles of 47.59 (4) and 7.27 (4)° to the chlorophenyl and methoxyphenyl groups, respectively. The nitro group is almost coplanar to its attached furan ring [dihedral angle = 2.03 (12)°]. In the crystal, intermolecular C—H⋯O hydrogen bonds link the molecules into a three-dimensional network. The crystal structure also features short intermolecular O⋯N [2.8546 (12) Å] and Cl⋯O [3.0844 (9) Å] contacts as well as aromatic π–π stacking interactions [centroid–centroid distance = 3.4367 (6) Å].
In the molecule of the title compound, C12H11ClN4O4, the pyrazole ring is coplanar with the amino and ethoxycarbonyl groups within 0.026 (2) and 0.105 (2) Å, respectively. The C
6 ring of the 4-chloro-2-nitrophenyl group is twisted by 53.58 (4)° relative to the plane of the pyrazole ring. The planar structure of the pyrazole ring is stabilized by an intramolecular N—H⋯O hydrogen bond between its substituents. Neighbouring molecules are linked through intermolecular N—H⋯N and N—H⋯O hydrogen bonds, giving rise to one-dimensional tapes along the b axis. Molecules in the chain are linked to those of an adjacent chain through weak C—H⋯O interactions, forming a three-dimensional network.
The title molecule, C14H11ClN4O4, is in an E configuration and is twisted with the dihedral angle between the two benzene rings being 38.48 (8)°. The ethylidenehydrazine plane makes dihedral angles of 6.03 (10) and 44.04 (11)°, respectively, with the dinitro- and chloro-substituted benzene rings. The two nitro groups are essentially coplanar with the bound benzene ring, making dihedral angles of 0.9 (2) and 1.65 (18)°. An intramolecular N—H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, molecules are linked by a weak C—H⋯O interaction into a chain along the c axis. The chains are further stacked along the b axis by a π–π interaction with a centroid–centroid distance of 3.6088 (10) Å.
In the title compound, C11H15ClN6O4S, which belongs to the neonicotinoid class of insecticidally active heterocyclic compounds, the six-membered triazine ring adopts an opened envolope conformation. The planar nitro imine group [dihedral angle between nitro and imine groups = 1.07 (7)°] and the thiazole ring are oriented at a dihedral angle of 69.62 (8)°. A classical intramolecular N—H⋯O hydrogen bond is found in the molecular structure. Moreover, one classical intermolecular N—H⋯N and four non-classical C—H⋯O and C—H⋯N hydrogen bonds are also present in the crystal structure. Besides intermolecular hydrogen bonds, the Cl atom forms an intermolecular short contact [3.020 (2) Å] with one of the nitro O atoms.
The dihedral angle between the benzene and pyridyl rings in the title compound, C11H8ClN3O2, is 22.65 (10)°, indicating a twisted molecule. The amine H and nitro O atoms form a donor–acceptor pair for an intramolecular N—H⋯O hydrogen bond so that the nitro group is almost coplanar with the pyridine ring to which it is connected [O—N—C—C torsion angle = 7.4 (3)°]. The pyridine N and Cl atoms are approximately syn. The crystal packing features C—H⋯Cl interactions that lead to undulating supramolecular chains along . These are connected into sheets by π–π interactions occurring between the benzene rings and between the pyridine rings of translationally related molecules along the b axis [centroid–centroid distances = length of b axis = 3.7157 (2) Å].
The amide group in the title compound, C7H6ClN3O3, is significantly twisted out of the plane of the benzene ring [C—C—C—O = 34.2 (5)°] whereas the nitro group is almost co-planar [O—N—C—C = 4.0 (5)°] with the ring. Intramolecular N—H⋯O and N—H⋯Cl hydrogen bonds occur. In the crystal, the molecules are linked by N—H⋯O hydrogen bonds, generating layers propagating in the ab plane.
With the exception of the C atoms of two of the methyl groups of the tert-butyl substituent, all of the non-H atoms of the title compound, C12H14ClN3O3S, lie on a mirror plane. The 2-chloro-5-nitrophenyl and 2,2-dimethylpropionyl substituents are, respectively, cis and trans relative to the thiocarbonyl S atom across the two C—N bonds. Intramolecular N—H⋯O and C—H⋯S hydrogen bonds form S(6) ring motifs, also in the mirror plane. Despite the presence of two N—H subsituents, no intermolecular hydrogen bonds are observed in the crystal structure. Weak π–π contacts [centroid–centroid distances of 4.2903 (17) Å] involving adjacent aromatic rings link the molecules in a head-to-tail fashion above and below the molecular plane.
The benzene rings of the biphenyl group in the title compound, C20H14ClN3O3S, are nearly coplanar [maximum deviation = 0.20 (3) Å]. The mean plane of the biphenyl group forms a dihedral angle of 5.24 (7)° with the aromatic ring of the nitrochlorobenzene group. Intramolecular N—H⋯Cl, N—H⋯O and C—H⋯S hydrogen bonds stabilize the cis–trans conformation of the molecule. In the crystal, molecules are linked by C—H⋯O and C—H⋯S hydrogen bonds into mutually interwoven corrugated layers parallel to (10-2).
In the title compound, C11H14N2O5, the molecular structure is stabilized by an intramolecular N—H⋯O hydrogen bond, which generates an S(6) ring motif. The nitro group is twisted slightly from the attached benzene ring, forming a dihedral angle of 5.2 (2)°. In the crystal packing, intermolecular O—H⋯O and C—H⋯O hydrogen bonds link the molecules into a three-dimensional network. The crystal studied was a non-merohedral twin, the refined ratio of the twin components being 0.264 (2):0.736 (2).
In the title compound, C18H19ClN4O3, the dihydropyrimidinone ring adopts a flattened boat conformation. The dihedral angle between the phenyl and pyrazole rings is 43.39 (6)°. An intramolecular C—H⋯O contact generates an S(8) ring motif that stabilizes the molecular conformation and precludes the carbonyl O atom of the ester group from forming intermolecular interactions. Molecules are linked into centrosymmetric dimers by pairs of N—H⋯O hydrogen bonds and the dimers are linked into infinite chains along  by N—H⋯N hydrogen bonds.
In the title compound, C25H15ClN2O6S, the carbazole ring system is essentially planar, with a maximum deviation of 0.152 (3) Å for the C atom to which the 4-chloro-2-nitrophenyl ring is attached. Its mean plane is almost orthogonal to the phenylsulfonyl and nitrophenyl rings, making dihedral angles of 82.64 (14) and 79.89 (13)°, respectively. The N atom of the nitro group deviates by 0.032 (3) Å from the benzene ring to which it is attached. The molecular structure features intramolecular O—H⋯O and C—H⋯O hydrogen bonds, which generate three S(6) ring motifs. In the crystal, molecules are linked by C—H⋯O hydrogen bonds, which generate C(6) and C(9) chains running in the  and  directions, respectively, forming a two-dimensional network lying parallel to (001). There are also R
3(28) supramolecular graph-set ring motifs enclosed within these networks.
There are two crystallographically independent molecules in the asymmetric unit of the title compound, C14H11ClN4O4, with the same E conformation about the C=N double bond. The molecules are approximately planar, with a dihedral angle between the benzene rings of 10.24 (12)° in one molecule and 4.73 (12)° in the other. In both molecules, the ortho-nitro groups of the 2,4-dinitrophenyl units are coplanar to their bound benzene rings, whereas the para-nitro groups are slightly twisted. In each molecule, intramolecular N—H⋯O hydrogen bonds generate S(6) ring motifs. In the crystal, molecules are linked by weak C—H⋯O interactions into sheets parallel to the (-102) plane. These sheets are stacked by π–π interactions, with centroid–centroid distances of 3.7008 (14) and 3.7459 (14) Å. A Cl⋯O short contact [3.111 (2) Å] is observed.
In the title compound, C16H14N2O5, a non-merohedral twin, the dihedral angle between the mean planes of the two benzene rings is 4.0 (9)°. The ethyl group is disordered [0.643 (14) and 0.357 (14) occupancy]. The nitro group is twisted by 16.4 (4)° from the mean plane of the benzene ring and the mean plane of the carbonyl group is twisted from the mean planes of the two benzene rings by 4.5 (0) and 4.7 (9)°. An intramolecular N—H⋯O hydrogen bond occurs. The crystal packing is stabilized by weak intermolecular C—H⋯O hydrogen-bond interactions.
The title molecule, C10H8ClN3O7, is twisted with the dihedral angle between the amide and benzene ring being 38.75 (11)°. The C—N—C—C torsion angle between the amide and acetyl groups is −150.1 (2)°. Finally, each nitro group is twisted out of the plane of the benzene ring to which it is connected [O—N—C—C torsion angles = 34.0 (3) and −64.5 (3)°]. Linear supramolecular chains along  and mediated by N—H⋯O hydrogen bonds between successive amide groups dominate the crystal packing. The chains are consolidated into the three-dimensional structure by C—H⋯O contacts.
In the title compound, C17H15N3O5S, the nitro and thioureido groups are twisted by 7.2 (7) and 21.4 (2)°, respectively, from the nitrobenzene ring plane whereas the thioureido and the ethyl ester group make dihedral angles of 43.0 (1) and 18.0 (2)°, respectively, with the benzene rings to which they are attached. Intramolecular N—H⋯O hydrogen-bonding interactions are observed. In the crystal, intermolecular N—H⋯O hydrogen bonds connect the molecules into chains running along the a axis.
In the title compound, C20H15ClN2OS, the benzene rings of the biphenyl group are at an angle of 44.23 (12)°. The C4N2OS central thiourea fragment makes dihedral angles with the benzene carbonyl and chlorobenzene rings of 55.96 (9) and 64.09 (9)°, respectively. The trans–cis geometry of the thiourea group is stabilized by the intramolecular hydrogen bond between the carbonyl O atom and the H atom of the cis-thioamide. In the crystal structure, molecules are linked by N—H⋯S and N—H⋯O intermolecular hydrogen bonds to form one-dimensional chains along the c axis. C—H⋯π interactions also contribute to the stability of the molecule.
The title compound, C12H9ClN2OS2, exists in the thioamide form with an intramolecular N—H⋯O hydrogen bond across the thiourea and the carbonyl group. The dihedral angle between the rings is 10.36 (11)°. In the crystal structure, molecules are linked into chains by weak intermolecular C—H⋯Cl hydrogen-bonding interactions.
In the title molecule, C7H8ClN3O, the pyrazine and amide groups are almost co-planar [N—C—C—N torsion angle = −2.4 (2) °], a conformation stabilized by an intramolecular N—H⋯N hydrogen bond. The chloroethyl group lies out of the plane [N—C—C—Cl = −65.06 (17) °]. In the crystal, the presence of N—H⋯N hydrogen bonds leads to the formation of a C(6) supramolecular chain along the b axis. The carbonyl-O atom accepts two C—H⋯O interactions. These, plus Cl⋯Cl short contacts [3.3653 (6) Å], consolidate the packing of the chains in the crystal.
In the molecule of the title compound, C10H7ClN2O5, the acyclic C=C double bond is cis configured. The C=O and O—H bonds of the acid group are in a relatively rare anti position to each other, due to the donation of intramolecular hydrogen bond to the amide by the carboxyl group. The nitro group is significantly twisted [dihedral angle = 66.9 (3)°] out of the plane of the remaining atoms, which are almost coplanar (r.m.s. deviation for non-H atoms except the nitro group = 0.202 Å). In the crystal, N—H⋯O hydrogen bonds link the molecules into zigzag chains running along the b axis.
The title compound, C12H12Cl2N2O3, crystallizes as a non-merohedral twin with a twinning ratio of 0.51:0.49. The molecule adopts a keto–hydrazo tautomeric form stabilized by an intramolecular N—H⋯O hydrogen bond. The configuration around the N—N bond is trans.
In the molecule of the title compound, C15H15ClN2O3S, the S atom adopts a distorted tetrahedral coordination geometry with two O atoms, one N atom of the amide group and one C atom of the aromatic ring. An intramolecular O—H⋯N hydrogen bond results in the formation of a planar six-membered ring, which is oriented with respect to the adjacent aromatic ring at a dihedral angle of 3.38 (11)°. Thus, the two rings are nearly coplanar. In the crystal structure, intermolecular N—H⋯O hydrogen bonds link the molecules into centrosymmetric dimers.
In the title compound, C16H14ClFO3, the dihedral angle between the mean planes of the two benzene rings is 71.50 (5)°. Due to an intramolecular O—H⋯O hydrogen bond between the hydroxy group and the carbonyl O atom of the ethyl ester group, the ethyl ester group lies within the ring plane. The crystal structure is consolidated by intermolecular C—H⋯O and C—H⋯F interactions.
In the title compound, C11H12N2O5, the conformation of the N—H bond in the amide segment is syn to the ortho-nitro group in the benzene ring. The amide C=O and the carboxyl C=O of the acid segment are syn to each other and both are anti to the H atoms on the adjacent –CH2 groups. Furthermore, the C=O and O—H bonds of the acid group are in syn positions with respect to each other. The dihedral angle between the benzene ring and the amide group is 36.1 (1)°. The amide H atom shows bifurcated intramolecular hydrogen bonding with an O atom of the ortho-nitro group and an intermolecular hydrogen bond with the carbonyl O atom of another molecule. In the crystal, the N—H⋯O(C) hydrogen bonds generate a chain running along the  direction. Inversion dimers are formed via a pair of O—H⋯O(C) interactions, that form an eight-membered hydrogen-bonded ring involving the carboxyl group.