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In the title compound, C24H24Cl4N2O4S2, the dihedral angles between the central benzene ring and the pendant rings are 58.09 (10) and 62.59 (10)°. The dihedral angle between the pendant rings is 81.64 (9)°. Both sulfonamide groups lie to the same side of the central ring but the C—S—N—C torsion angles [73.09 (16) and −117.35 (14)] and S—N—C—C torsion angles [−143.80 (14) and −111.45 (16)°] differ significantly for the two pendant chains. The N atoms are close to planar (bond angle sums = 356.4 and 359.5°). In the crystal, weak C—H...O and C—H...Cl inter­actions link the mol­ecules.

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In the title compound, C11H16N2O3S, the S atom has a distorted tetra­hedral geometry [maximum deviation: O—S—O = 119.48 (15)°]. The dihedral angles between the benzene ring and its propyl­sulfonamide and methyl­amide substituents are 71.8 (2) and 5.8 (1)°, respectively. In the crystal, mol­ecules are linked by Nm—H...Os (m = methyl­amide and s = sulfonamide) hydrogen bonds, forming C(8) chains along the a axis. The two mol­ecule chains are connected by N—H...O hydrogen bonds, generating R32(18) rings. The crystal packing is further stabilized by weak inter­molecular C—H...O hydrogen bonds.

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In the title compound, C16H14ClN3O3S, the thia­zine ring adopts a sofa (half-chair) conformation, with an r.m.s. deviation from the mean plane of 0.23 Å. The S atom and S-bonded C atom exhibit the maximum deviations from the thia­zine mean plane [−0.3976 (12) and 0.3179 (14) Å, respectively]. The conformations around the double bonds in the R2C=N—N=CHR unit are Z and E. An intra­molecular O—H...N hydrogen bond with the hy­droxy group as donor generates an S(6) ring motif. In the crystal, pairs of weak C—H...O inter­actions connect the mol­ecules, forming inversion dimers.

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In the title compound, C17H16ClN3O2S, the dihedral angle between the benzene rings is 7.75 (13)°. The thia­zine ring adopts an envelope conformation with the S atom as the flap at a distance of 0.813 (2) Å from the plane through the other five atoms. In the crystal, C—H...O hydrogen bonds link the mol­ecules into chains propagating in [100].

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In the title compound, C19H18N4O3, the pyrazole ring is oriented at dihedral angles of 41.12 (7) and 12.25 (10)°, respectively, with respect to the planes of the phenyl and benzene rings. Intra­molecular N—H...O and O—H...O hydrogen bonds generate seven- and six-membered S(7) and S(6) ring motifs, respectively.

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The title compound, C12H16ClNO2S, adopts an L-shaped conformation, with the central C—S—N—C torsion angle being −78.0 (2)°. The cyclo­hexyl ring adopts a chair conformation. In the crystal, adjacent mol­ecules are connected by pairs of N—H...O hydrogen bonds around an inversion centre, forming cyclic dimers [graph set R22(8)].

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In the monomeric title complex, [Cu(C4H5O2)2(C8H11N)2], the CuII atom lies on a centre of inversion. Its coordination by two substituted pyridine ligands and two carboxyl­ate anions leads to a slightly distorted trans-CuN2O2 square-planar geometry. The dihedral angle between the mean planes of the pyridine (py) ring and the carboxyl­ate group is 74.71 (7)°. The dihedral angles between the planar CuN2O2 core and the py ring and carboxyl­ate plane are 67.72 (5) and 89.95 (5)°, respectively. Based on the refined C=C and C—C bond lengths, the terminal =CH2 and –CH3 groups of the carboxyl­ate anion may be disordered, but the disorder could not be resolved in the present experiment. Several intra­molecular C—H...O inter­actions occur. In the crystal, mol­ecules are linked by weak C—H...O hydrogen bonds, generating chains propagating in [100].

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In the title compound, C10H11NO3S, the benzisothia­zole ring system is almost planar [maximum deviation = 0.030 (1) Å for the S atom]. The isoprop­oxy group is almost in the plane of the benzisothia­zole ring system [N-C-O-C = 4.5 (2)°] with one of its methyl groups in an anti­periplanar orientation relative to the benzisothia­zole ring system [C-C-O-C = -162.0 (2)°].

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The CeIII atom in the title compound, {[Ce(C8H2NO6)(H2O)5]·4H2O}n, is N,O,O′-chelated by the carboxyl­ate trianion and is coordinated by five water mol­ecules; a carboxyl O atom from an adjacent trianion bridges the CeIII atom, resulting in a chain running along the a axis. The nine atoms surrounding the metal atom comprise a tricapped trigonal-prismatic polyhedron. The coordinated and lattice water mol­ecules inter­act with each other and with the carboxyl O atoms by O—H...O hydrogen bonds, generating a three-dimensional network.

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In the structure of the title compound, C13H14N2O3·H2O, all atoms of the organic molecule except the terminal methyl group of the ethyl group attached to the N atom of the pyridinone ring are roughly coplanar, with an r.m.s. deviation of 0.0897 Å. In the crystal, C—H...O contacts link pairs of naphthyridine mol­ecules into head-to-tail dimers. These are joined by strong O—H...O hydrogen bonds from the water molecules into infinite chains along the a axis.

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In the title compound, C22H24N2O4S2, the dihedral angles between the central benzene ring and the pendant rings are 66.96 (13) and 69.37 (13)°. The torsion angles for the C—N—S—C fragments are −68.5 (3) and −72.6 (3)°. In the crystal, mol­ecules are linked by N—H...O hydrogen bonds to generate infinite (001) sheets containing R44(28) loops. A weak aromatic π–π stacking contact between one of the terminal benzene rings and its inversion-related partner is also observed [centroid-to-centroid separation = 3.796 (2) Å and slippage = 1.581 Å], as are two possible C—H...π contacts.

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In the title compound, C17H18N2O5S, the dihedral angle between the aromatic rings is 68.59 (10)° and the C—S—N—C torsion angle is −81.84 (18)°. The mol­ecular conformation is stabilized by an intra­molecular N—H...O hydrogen bond, generating an S(6) ring. In the crystal, mol­ecules are linked by C—H...O and O—H...O hydrogen bonds into a three-dimensional network.

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In the title compound, C17H19NO4S, the terminal ethyl group is disordered over two sets of sites, with refined site occupancies of 0.536 (7) and 0.464 (7). The dihedral angle between the two aromatic rings is 81.92 (12)°. The mol­ecular conformation is stabilized by intra­molecular N—H...O and C—H...O hydrogen bonds, which generate S(6) motifs. In the crystal, mol­ecules are linked by C—H...O hydrogen bonds, forming chains along the b axis.

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The title compound, [Cu6I6(C2H6N2S)6], was obtained from the reaction of copper(I) iodide with N-methyl­thio­urea (Metu) in equimolar amounts in acetonitile. The complex consists of two six-membered trinuclear Cu3S3I3 cores that combine through triply bridging Metu, forming a hexa­nuclear core which has -3 symmetry. The CuII atom is coordinated by three S atoms of Metu and one iodide ion in a distorted tetra­hedral geometry. The crystal structure is stabilized by N—H...I hydrogen bonds and cuprophilic inter­actions [Cu...Cu = 3.0264 (9) Å].

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The title compound, C8H7BrO3, is almost planar (r.m.s. deviation for the non-H atoms = 0.055 Å). In the crystal, O—H...O hydrogen bonds link the mol­ecules into C(6) chains propagating in [010]. Very weak aromatic π–π inter­actions [centroid–centroid distances = 3.984 (5) and 3.982 (5) Å] also occur.

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The title mol­ecule, C16H14N2O4S, adopts an L-shaped conformation, with the central C—S—N—C torsion angle being −69.1 (3)°. The two benzene rings form a dihedral angle of 89.94 (15)°. The mol­ecular conformation may be influenced by a weak intra­molecular C—H...O hydrogen bond which generates an S(6) ring motif. In the crystal, mol­ecules are linked by N—H...O and weak C—H...O hydrogen bonds, forming chains propagating along the b axis. Weak C—H...N hydrogen bonds connect the chains into a two-dimensional network parallel to (011). The crystal studied was an inversion twin, the ratio of components being 0.7 (1):0.3 (1).

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In the title compound, C18H21NO4S, the aromatic rings are almost normal to each other, with a dihedral angle of 89.27 (18)°. The mol­ecular conformation is stabilized by an intra­molecular C—H...O inter­action, which generates an S(6) motif. In the crystal, N—H...O and C—H...O hydrogen bonds lead to the formation of chains propagating along [010]. Neighbouring chains are linked via a C—H...π inter­action. The –CH2CH2CH3 atoms of the butyl group are disordered over two sets of sites, with a refined site-occupancy ratio of 0.536 (16):0.464 (16).

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In the title compound, C14H17NO5S, the thia­zine ring adopts a half-chair conformation. The mol­ecule exhibits an intra­molecular O—H...O hydrogen bond, which forms a six-membered S(6) ring motif. The planes of the benzene and thia­zine rings are inclined at a dihedral angle of 15.30 (12)°.

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In the title compound, C16H13ClFN3O2S, the dihedral angle between the benzene rings is 4.47 (3)°. The conformation of the thia­zine ring is a half-chair and the Cl atom is in an axial orientation. In the crystal, mol­ecules are linked by C—H...F inter­actions, generating C(12) chains propagating in [011]. Aromatic π–π stacking inter­actions [centroid–centroid separations = 3.753 (2) and 3.758 (2) Å] also occur.

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In the title compound, C24H18ClN3O2S, the dihedral angle between the benzene ring and the anthracene ring system is 41.10 (8)°. The thia­zine ring has a half-chair conformation and the Cl atom is in an axial orientation. In the crystal, mol­ecules are linked by C—H...O inter­actions, generating C(8) chains along [100]. A C—H...N short contact occurs in the mol­ecule, generating an S(6) ring.

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In the title compound, C14H13ClN2O5S2, the dihedral angles between the central benzene ring and the pendant chloro­benzene ring and the N-acetyl group are 82.35 (5) and 79.71 (6)°, respectively, and the overall conformation of the mol­ecule approximates to a U shape. Both the C—S—N—C conformations are gauche, but with opposite senses [torsion angles = −59.29 (15) and 63.68 (16)°]. An intra­molecular C—H...O inter­action generates an S(6) ring. In the crystal, inversion dimers linked by pairs of N—H...O hydrogen bonds generate R22(20) loops. A second N—H...O hydrogen bond links the dimers into (101) layers.

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In the title compound, C14H15NO5S, the thia­zine ring adopts a sofa conformation and an intra­molecular O—H...O hydrogen bond forms an S(6) ring. In the crystal, molecules are linked viaC—H...O inter­actions.

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In the title compound, C18H19N3O2S, the thia­zine ring adopts an envelope conformation, with the S atom displaced by 0.732 (1) Å from the other atoms of the ring. The phenyl ring is oriented at a dihedral angle of 79.33 (7)° with respect to the fused benzene ring. The conformations about the two double bonds in the R2C=N—N=C(CH3)Ar grouping are Z and E, respectively. In the crystal, inversion dimers linked by pairs of C—H...O inter­actions generate R22(8) and R22(12) loops, as parts of infinite chains along the a-axis direction.

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In the title compound, C17H15N3O6S, which crystallized with highly disordered methanol and/or water solvent mol­ecules, the dihedral angle between the the indole and benzene ring systems is 5.3 (2)°, which allows for the formation of intra­molecular π–π stacking inter­actions [centroid–centroid separations = 3.641 (3) and 3.694 (3) Å] and an approximate overall U-shape for the mol­ecule. In the crystal, dimers linked by pairs of Ns—H...Oc (s = sulfonamide and c = carboxyl­ate) hydrogen bonds generate R22(10) loops, whereas Ni—H...π (i = indole) inter­actions lead to chains propagating in [100] or [010]. Together, these lead to a three-dimensional network in which the solvent voids are present as inter­secting (two-dimensional) systems of [100] and [010] channels. The title compound was found to contain a heavily disordered solvent mol­ecule, which could be methanol or water or a mixture of the two. Due to its uncertain nature and the unresolvable disorder, the data were processed with the SQUEEZE option in PLATON [Spek (2009). Acta Cryst. D65, 148–155], which revealed 877.8 Å3 of solvent-accessible volume per unit cell and 126 electron-units of scattering density or 109.7 Å3 (16 electron units) per organic mol­ecule.. This was not included in the calculations of overall formula weight, density and absorption coefficient.

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The asymmetric unit of the title compound, C15H18BrN3O2S, contains two independent mol­ecules in both of which the (thia­zine)C=N—N double bond exhibits an E conformation. The cyclo­hexyl rings adopt chair conformations while the thia­zine rings are in sofa conformations. The mean planes of these rings are oriented at dihedral angles of 64.43 (13) and 28.6 (2)° in the two independent mol­ecules while the aromatic and thia­zine rings are twisted by dihedral angles of 8.73 (8) and 13.07 (2)°, respectively. In the crystal, C—H...O and C—H...Br inter­actions connect mol­ecules into chains propagating along the a axis.

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In the title compound, C17H17N3O2S, the phenyl ring is oriented at dihedral angles of 8.5 (2) and 1.17 (14)°, respectively, to the C=N—N plane and the fused aromatic ring. The thia­zine ring adopts an envelope conformation with the S atom at the flap. In the crystal, a weak C—H...O inter­action connects the mol­ecules, forming a helical chain along the a axis.

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In the title compound, C14H12FNO4S, the dihedral angle between the aromatic rings is 50.26 (9)° and the C—S—N—C bond adopts a gauche conformation [torsion angle = −68.12 (15)°]. The dihydro­dioxine ring is disordered over two orientations, which both approximate to half-chairs, in a 0.880 (7):0.120 (7) ratio. In the crystal, N—H...O hydrogen bonds link the mol­ecules into C(4) chains propagating in [100]. Weak C—H...O and C—H...F inter­actions consolidate the packing.

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In the title compound, C13H11Cl2NO2S, the dihedral angle between the aromatic rings is 76.62 (10)° and the C—S—N—C linkage between the rings adopts a gauche conformation [torsion angle = −51.4 (2)°]. A weak intra­molecular C—H...O inter­action closes an S(6) ring. In the crystal, inversion dimers linked by pairs of N—H...O hydrogen bonds generate R22(8) loops.

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In the title compound, C16H15N3O3S, the dihedral angle between the aromatic rings is 8.18 (11)° and the C=N—N=C torsion angle is 178.59 (14)°. The conformation of the thia­zine ring is an envelope, with the S atom displaced by 0.8157 (18) Å from the mean plane of the other five atoms (r.m.s. deviation = 0.045 Å). An intra­molecular O—H...N hydrogen bond closes an S(6) ring. In the crystal, weak C—H...O inter­actions link the mol­ecules, with all three O atoms acting as acceptors.

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In the title compound, C16H13BrN4O4S, the dihedral angle between the aromatic rings is 4.1 (2)° and the C=N—N=C torsion angle is 175.5 (3)°. The nitro group is almost coplanar with the benzene ring to which it is attached [dihedral angle = 2.9 (7)°]. The thia­zine ring has an S-envelope conformation with the S atom displaced by 0.819 (3) Å from the mean plane of the other five atoms (r.m.s. deviation = 0.017 Å). In the crystal, C—H...O inter­actions link the mol­ecules and weak aromatic π–π stacking [centroid–centroid separation = 3.874 (2) Å] is also observed.

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In the title compound, C14H13Cl2NO2S, 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 mol­ecules into C(4) chains propagating in [010]. A short inter­molecular Cl...O contact of 3.1115 (17) Å is seen.

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In the title compound, C16H13BrFN3O2S, the dihedral angle between the aromatic rings is 2.55 (19)° and the C=N—N=C torsion angle is 178.9 (3)°. The conformation of the thia­zine ring is an envelope, with the S atom displaced by −0.811 (3) Å from the mean plane of the other five atoms (r.m.s. deviation = 0.042 Å). In the crystal, C—H...O inter­actions link the mol­ecules and weak aromatic π–π stacking between the fluoro­benzene and bromo­benzene rings [centroid–centroid separation = 3.720 (2) Å and inter­planar angle = 2.6 (2)°] is also observed.

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In the title compound, C17H17N3O2S, the dihedral angle between the aromatic rings is 6.3 (5)° and the C=N—N=C group is statistically planar [torsion angle = 179.8 (8)°]. The conformation of the thia­zine ring is an envelope, with the S atom displaced by 0.823 (9) Å from the mean plane of the other five atoms (r.m.s. deviation = 0.012 Å). In the crystal, C—H...O inter­actions link the mol­ecules into C(5) chains propagating along [101]. The chains are consolidated by weak aromatic π–π stacking between the benzene and toluene rings [centroid-to-centroid separation = 3.826 (5) Å and inter­planar angle = 6.3 (4)°].

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In the title compound, C20H17F2NO4S2, the dihedral angles between the o-xylene ring and the fluoro­benzene rings are 31.7 (1) and 32.8 (1)°, and the dihedral angle between the fluoro­benzene rings is 50.9 (1)°. The C—N—S—C torsion angles are 76.7 (2) and 101.8 (2)°. In the crystal, mol­ecules are connected by C—H...O inter­actions into sheets in the ab plane.

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In the title compound, C22H23NO4S2, the dihedral angles between the dimethyl­phenyl ring and the two methyl­phenyl rings are 41.19 (15) and 20.50 (17)°; the dihedral angle between the methyl­phenyl rings is 48.11 (14)°. The C—N—S—C torsion angles are −87.6 (2) and 77.43 (18)°. The only possible directional inter­actions in the crystal are very weak C—H...π inter­actions and very weak π–π stacking between parallel methyl­phenyl rings [centroid-to-centroid separation = 4.010 (2) Å and slippage = 1.987 Å].

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In the title compound C10H11N3O, the mean plane of the indole ring system (r.m.s. deviation 0.0131 Å) subtends a dihedral angle of 87.27 (5)° to the almost planar acetohydrazide substituent (r.m.s. deviation 0.0291 Å). In the crystal, bifurcated N—H...(O,N) and N—H...N hydrogen bonds involving the pyrrole N–H grouping combine to form zigzag chains along a. Additional N—H...O contacts from the hydrazide N–H group augmented by C—H...π inter­actions link the mol­ecules into chains along the a axis. The overall effect of these contacts is a three-dimensional network structure with mol­ecules stacked along the b-axis direction.

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In the title compound C11H17NO4S, an intra­molecular O—H...O hydrogen bond forms an S(8) ring and determines the conformation of the bis­(2-hy­droxy­eth­yl) segment of the mol­ecule, holding the two CH2CH2OH groups close to coplanar (r.m.s. deviation = 0.185 Å). In the crystal, O—H...O hydrogen bonds link the mol­ecules into zigzag chains along the b axis. Weaker additional C—H...O and C—H...π contacts generate a three dimensional network, with mol­ecules stacked along the b-axis direction.
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