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The title compound, bis­[di­thio­bis­(formamidinium)] hexa­bromido­ruthenium dibromide trihydrate, [(NH2)2CSSC(NH2)2]2[RuBr6]Br2·3H2O, crystallizes in the ortho­rhom­bic system, space group Cmcm, Z = 4. The [RuBr6]2− anionic complex has an octahedral structure. The Ru—Br distances fall in the range 2.4779 (4)–2.4890 (4) Å. The S—S and C—S distances are 2.0282 (12) and 1.783 (2) Å, respectively. The H2O mol­ecules, Br− ions, and NH2 groups of the cation are linked by hydrogen bonds. The conformation of the cation is consolidated by intra­molecular O—H⋯Br, O—H⋯O, N—H⋯Br and N—H⋯O hydrogen bonds. The [(NH2)2CSSC(NH2)2]2+ cations form a hydrogen-bonded system involving the Br− ions and the water mol­ecules. Two Br− anions form four hydrogen bonds, each with the NH2 groups of two cations, thus linking the cations into a ring. The rings are connected by water mol­ecules, forming N—H⋯O—H⋯Br hydrogen bonds. [ABSTRACT FROM AUTHOR]

In the title compound, C19H17NO5S, the cyclo­hexene ring adopts nearly an envelope conformation. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds, forming a three-dimensional network. In addition, C—H⋯π inter­actions connect the mol­ecules by forming layers parallel to the (010) plane. According to the Hirshfeld surface analysis, H⋯H (36.9%), O⋯H/H⋯O (31.0%), C⋯H/H⋯C (18.9%) and S⋯H/H⋯S (7.9%) inter­actions are the most significant contributors to the crystal packing. [ABSTRACT FROM AUTHOR]

The asymmetric unit of the title compound, C25H18N6.H2O, comproses two molecules (I and II), together with a water molecule. The terminal phenyl groups attached to the methyl groups of the molecules I and II do not overlap completely, but are approximately perpendicular. In the crystal, the molecules are connected by N--H...N, C--H...N, O--H...N and N--H...O hydrogen bonds with each other directly and through water molecules, forming layers parallel to the (001) plane. C--H...π interactions between these layers ensure the cohesion of the crystal structure. A Hirshfeld surface analysis indicates that H...H (39.1% for molecule I; 40.0% for molecule II), C...H/H...C (26.6% for molecule I and 25.8% for molecule II) and N...H/H...N (24.3% for molecules I and II) interactions are the most important contributors to the crystal packing. [ABSTRACT FROM AUTHOR]

In the ten-membered 1,3,4,6-tetrahydro-2H-pyrido[1,2-α]pyrimidine ring system of the title compound, C17H15N5, the 1,2-dihydropyridine ring is essentially planar (r.m.s. deviation = 0.001 Å), while the 1,3-diazinane ring has a distorted twist-boat conformation. In the crystal, molecules are linked by N--H⋯N and C--H⋯N hydrogen bonds, forming a three-dimensional network. In addition, C--H⋯π interactions form layers parallel to the (100) plane. Thus, crystalstructure cohesion is ensured. According to a Hirshfeld surface study, H⋯H (40.4%), N⋯H/H⋯N (28.6%) and C⋯H/H⋯C (24.1%) interactions are the most important contributors to the crystal packing. [ABSTRACT FROM AUTHOR]

In the title compound, C21H15N5OS2, molecular pairs are linked by N--H…N hydrogen bonds along the c-axis direction and C--H…S and C--H…O hydrogen bonds along the b-axis direction, with R2²(12) and R2²(16) motifs, respectively, thus forming layers parallel to the (104) plane. In addition, C=S…π and C...N…π interactions between the layers ensure crystal cohe- sion. The Hirshfeld surface analysis indicates that the major contributions to the crystal packing are H…H (43.0%), C…H/H…C (16.9%), N…H/H…N (11.3%) and S…H/H…S (10.9%) interactions. [ABSTRACT FROM AUTHOR]

The title com­pound, C13H11NO, adopts an E configuration about the C=C double bond. The pyrrole ring is inclined to the phenyl ring at an angle of 44.94 (8)°. In the crystal, mol­ecules are linked by N--H...O hydrogen bonds, forming ribbons parallel to (020) in zigzag C(7) chains along the a axis. These ribbons are connected via C--H...π inter­actions, forming a three-dimensional network. No significant π-π inter­actions are observed. [ABSTRACT FROM AUTHOR]

The title compound, C24H30O4, consists of two trans-fused cyclohexane rings attached to a chromen-2-one moiety through an oxymethylene bridge. The cyclohexane rings adopt half-chair and chair conformations. In the crystal, molecules are linked by C--H... O and O--H... O hydrogen bonds, forming a triperiodic network. Furthermore, C--H... interactions stabilize the crystal structure. A Hirshfeld surface analysis revealed that the most important contributions to the crystal packing are from H... H (56.9%), O...H/H...O (23.0%) and C...H/H...C (19.6%) contacts. [ABSTRACT FROM AUTHOR]

In the title compound, C20H12N6O-C2H6OS, the [1,2,4]triazolo[1,5-a]pyridine ring system is almost planar and makes dihedral angles of 16.33 (7) and 46.80 (7)°, respectively, with the phenylamino and phenyl rings. In the crystal, molecules are linked by intermolecular N--H- - -O and C--H- - -O hydrogen bonds into chains along the b-axis direction through the dimethyl sulfoxide solvent molecule, forming C(10)R2 1(6) motifs. These chains are connected via S--O- - -- interactions, -- stacking interactions between the pyridine rings [centroid-to-centroid distance = 3.6662 (9) A ° ] and van derWaals interactions. A Hirshfeld surface analysis of the crystal structure indicates that the most important contributions to the crystal packing are from H- - -H (28.1%), C- - -H/H- - -C (27.2%), N- - -H/H- - -N (19.4%) and O- - -H/H- - -O (9.8%) interactions. [ABSTRACT FROM AUTHOR]

In the title compound, C31H44O5, molecules are connected by O-H...O and C-H...O hydrogen bonds, forming hydrogen-bonded zigzag chains running along the b axis and parallel to the (001) plane. The molecular packing is stabilized by van der Waals interactions between these chains along the a and c axes. The intermolecular interactions in the crystal structure were quantified and analysed using Hirshfeld surface analysis. [ABSTRACT FROM AUTHOR]

In the title compound, C32H29N5O2·C3H7NO, the bicyclo[3.3.1]nonane ring system adopts a half-chair/twist-boat conformation, with the phenyl rings in equatorial orientations with respect to the piperidine ring. The two oxane rings of the 2-oxabicyclo[2.2.2]octane ring system exhibit a distorted boat conformation. Intermolecular C--H· · ·O and C--H· · ·N hydrogen bonds connect the molecules in the crystal, generating layers extending parallel to (100). These layers are connected by C--H· · ·π interactions. A Hirshfeld surface analysis was performed to quantify the contributions of the different intermolecular interactions, indicating that the most important contributions to the crystal packing are from H· · ·H (52.5%), N· · ·H/H· · ·N (19.2%), C· · ·H/H· · ·C (18.8%) and O· · ·H/H· · ·O (8.3%) interactions. [ABSTRACT FROM AUTHOR]

The crystal used for structure determination contained, along with the title compound, C17H14BrN3O4, an admixture [0.0324 (11)] of its 7-bromo isomer. The 2,3-dihydro-1H-indole ring system is nearly planar, while the conformation of the 4H-pyran ring is close to a flattened boat. The mean planes of these fragments form a dihedral angle of 86.67 (9)⋅. The carboxylate group lies near the plane of 4H-pyran, its orientation is stabilized by an intramolecular C--H⋅ ⋅ ⋅O contact. In the crystal, the molecules are connected into layers by N--H⋅ ⋅ ⋅N and N--H⋅ ⋅ ⋅O hydrogen bonds. The most important contributions to the crystal packing are from H⋅ ⋅ ⋅H (33.1%), O⋅ ⋅ ⋅H/H⋅ ⋅ ⋅O (16.3%), N⋅ ⋅ ⋅H/H⋅ ⋅ ⋅N (12.1%), Br⋅ ⋅ ⋅H/H⋅ ⋅ ⋅Br (11.5%) and C⋅ ⋅ ⋅H/H⋅ ⋅ ⋅C (10.6%) interactions. [ABSTRACT FROM AUTHOR]

The title compound, C20H24BrNO2, is chiral at the carbon atoms on either side of the oxygen atom of the oxazolidine ring and crystallizes as a racemate. The 1,3-oxazolidine ring adopts an envelope conformation with the N atom in an endo position. The mean plane of the oxazolidine ring makes dihedral angles of 77.74 (10) and 45.50 (11)°, respectively, with the 4-bromophenol and 1,3,5-trimethylbenzene rings. In the crystal, adjacent molecules are connected via C--H⋯O hydrogen bonds and C--H⋯π interactions into layers parallel to the (200) plane. The packing is strengthened by van der Waals interactions between parallel molecular layers. A Hirshfeld surface analysis shows that H⋯H (58.2%), C⋯H/H⋯C (18.9%), and Br⋯H/H⋯Br (11.5%) interactions are the most abundant in the crystal packing. [ABSTRACT FROM AUTHOR]

In the title compound, C23H16N6O3, the central five-membered cyclopentene ring adopts an envelope conformation while the five-membered spiro 2,3-dihydro-1H-pyrrole rings exhibit twisted envelope and envelope conformations. One of the 1,3-dihydro-2H-indol-2-one units is in an axial position and the other is in a bisectional position. The methyl methanimidate unit is in an equatorial position. The crystal structure of the title compound is consolidated by intermolecular N--H...N, N--H...O and C--H...O hydrogen bonds, forming a three dimensional network. [ABSTRACT FROM AUTHOR]

The title compound, 2C16H27NO⋅H2O, crystallizes in the monoclinic P21/c space group with two independent molecules (A and B) in the asymmetric unit. In the crystal, molecules A and B are linked through the water molecules by intermolecular O--H⋯O and O--H⋯N hydrogen bonds, producing chains along the b-axis direction. These chains are linked with neighboring chains parallel to the (103) plane via C--H⋯π interactions, generating ribbons along the b-axis direction. The stability of the molecular packaging is ensured by van der Waals interactions between the ribbons. According to the Hirshfeld surface study, H⋯H interactions are the most significant contributors to the crystal packing (80.3% for molecule A and 84.8% for molecule B). [ABSTRACT FROM AUTHOR]