(Diamino­methyl­idene)sulfonium chloride–thio­urea (3/2)

The asymetric unit of the title salt, 3CH5N2S+·3Cl−·2CH4N2S, contains two mol­ecules of thio­urea, three (diamino­methyl­idene)sulfonium cations and three chloride anions. The crystal packing is stabilized by N—H⋯Cl, N—H⋯S, S—H⋯Cl and S—H⋯S hydrogen bonds, forming a three-dimensional network

5-(Pyridin-4-ylmeth­yl)-1H-pyrazolo­[3,4-d]pyrimidin-4(5H)-one

In the title compound, C11H9N5O, the pyrazolo­pyrimidin-4-one ring system is almost planar, with a maximum deviation of 0.0546 (13) Å for the O atom. The crystal packing is stabilized by inter­molecular N—H⋯N, C—H⋯O and C—H⋯N hydrogen bonds. In addition, π–π stacking is found between the pyridine ring and the pyrazolo­pyrimidin-4-one ring systems, with centroid–centroid distances in the range 3.9627 (12)–4.6781 (12) Å

Silver(I) diaqua­nickel(II) catena-borodiphosphate(V) hydrate, (Ag0.57Ni0.22)Ni(H2O)2[BP2O8]·0.67H2O

The structure framework of the title compound, (Ag0.57Ni0.22)Ni(H2O)2[BP2O8]·0.67H2O, is the same as that of its recently published counterpart AgMg(H2O)2[BP2O8]·H2O. In the title structure, the Ag, Ni, B and one O atom are located on special positions (sites symmetry 2). The structure consists of infinite borophosphate helical [BP2O8]3− ribbons, built up from alternate BO4 and PO4 tetra­hedra arranged around the 65 screw axes. The vertex-sharing BO4 and PO4 tetra­hedra form a spiral ribbon of four-membered rings in which BO4 and PO4 groups alternate. The ribbons are connected through slightly distorted NiO4(H2O)2 octa­hedra, four O atoms of which belong to the phosphate groups. The resulting three-dimensional framework is characterized by hexa­gonal channels running along [001]. However, the main difference between the structures of these two compounds lies in the filling ratio of Wyckoff positions 6a and 6b in the tunnels. Indeed, in this work, the refinement of the occupancy rate of sites 6a and 6b shows that the first is occupied by water at 67% and the second is partially occupied by 56.6% of Ag and 21.6% of Ni. In the AgMg(H2O)2[BP2O8]·H2O structure, these two sites are completely occupied by H2O and Ag+, respectively. The title structure is stabilized by O—H⋯O hydrogen bonds between water mol­ecules and O atoms that are part of the helices

Diethyl 2-{(dibenzyl­amino)[4-(trifluoro­meth­yl)phen­yl]meth­yl}malonate

The asymmetric unit of the title compound, C29H30F3NO4, contains two independent mol­ecules. In each independent mol­ecule, one of two terminal ethyl groups is disordered over two conformations: the occupancies of major components were fixed at 0.53 and 0.64 in the two mol­ecules. In the crystal structure, weak inter­molecular C—H⋯O hydrogen bonds link mol­ecules into chains propagating along [10]

6-Nitro-2,3-dihydro-1H-pyrrolo­[2,1-c][1,4]benzodiazepine-5,11(10H,11aH)-dione

In the two mol­ecules of the asymmetric unit of the title compound, C12H11N3O4, the seven-membered diazepine ring adopts a boat conformation (with the two phenyl­ene C atoms representing the stern and the methine C atom the prow). The five-membered pyrrole ring, which has an envelope conformation, makes dihedral angles of 60.47 (10) and 54.69 (9)° with the benzene ring of the benzodiazepine unit in the two mol­ecules. In the crystal, inter­molecular N—H⋯O hydrogen bonds and π–π stacking inter­actions [centroid–centroid distance = 3.8023 (7)–3.8946 (7) Å] lead to the formation of a three-dimensional framework

4-tert-Butyl-4′-(4-meth­oxy­phen­yl)-3′-(4-methyl­phen­yl)-1,2,3,4-tetra­hydro­spiro­[naphthalene-2,5′(4′H)-1,2-oxazol]-1-one

In the title compound, C30H31NO3, the tolyl ring is almost coplanar with the isoxazole ring [dihedral angle = 12.51 (7)°], whereas the meth­oxy­phenyl ring is almost perpendicular to the isoxazole ring [dihedral angle = 89.77 (5)°]. In the crystal, mol­ecules are connected through C—H⋯O hydrogen bonds, forming chains running along the a axis

Ethyl 2-amino-4-phenyl-4H-1-benzo­thieno[3,2-b]pyran-3-carboxyl­ate

The title heterocyclic compound, C20H17NO3S, was synthesized by condensation of ethyl cyano­acetate with (Z)-2-benzyl­idenebenzo[b]thio­phen-3(2H)-one in the presence of a basic catalyst in ethanol. The phenyl and ester groups make dihedral angles of 77.67 (6) and 8.52 (6)°, respectively, with the benzothienopyran ring system [maximum r.m.s. deviation = 0.1177 (13) Å]. In the crystal, centrosymmetric dimers are formed through pairs of N—H⋯O hydrogen bonds between the amine and ester groups. Inter­molecular C—H⋯N hydrogen bonds and C—H⋯π inter­actions involving the thio­phene ring are also observed

1-Allyl-4-(1,3-benzothia­zol-2-yl)-5-methyl-2-phenyl-1H-pyrazol-3(2H)-one

The title compound, C20H17N3OS, is a 1H-pyrazol-3(2H)-one having aromatic 4-(1,3-benzothia­zol-2-yl)- and 2-phenyl substituents. The five-membered ring and fused ring system are planar, the r.m.s. deviations being 0.021 and 0.005 Å, respectively. The five-membered ring is aligned at 7.9 (2)° with respect to the fused-ring system. The allyl and phenyl parts of the mol­ecule are both disordered over two positions in a 1:1 ratio. Weak inter­molecular C—H⋯O hydrogen bonding is present in the crystal structure

1,3-Dibenzyl-2-methyl­benzimidazolium chloride

The cation of the title salt, C22H21N2 +·Cl−, contains a planar benzimidazolium unit (r.m.s. deviation = 0.02 Å); the phenyl rings of the benzyl substituents form dihedral angles of 68.2 (1) and 79.7 (1)° with the plane of the benzimidazolium fragment