Bis[μ-N-(pyridin-2-ylmeth­yl)pyridin-2-amine-κ2 N:N′]disilver(I) bis(trifluoro­methane­sulfonate)

In the binuclear title compound, [Ag2(C11H11N3)2](CF3O3S)2, the complex cation is centrosymmetric, with the unique Ag+ cation coordinated by two pyridine N atoms from two symmetry-related N-(pyridin-2-ylmeth­yl)pyridin-2-amine ligands in a geometry slightly distorted from linear [N—Ag—N 161.02 (7)°]. This set-up leads to the formation of a 14-membered cyclic dimer. The two pyridine rings coordinated to the Ag+ cation are tilted by 80.19 (7)° with respect to each other. Inter­molecular N—H⋯O hydrogen-bonding inter­actions between the cyclic dimer and the anion exist. A two-dimensional network parallel to the ac plane is constructed by three weak Ag⋯(O,N) inter­actions as well as an F⋯F contact of 2.890 (4) Å

1,4-Bis(4-pyridylsulfanylmeth­yl)benzene

In the title compound, C18H16N2S2, a crystallographic inversion centre lies at the centre of the benzene ring, and the two terminal 4-mercaptopyridyl groups adopt an anti geometry. Each benzene ring makes a dihedral angle of 55.4 (1)° with the plane of the benzene fragment. The crystal structure is stabilized by C—H⋯π inter­actions between a benzene H atom and a pyridyl ring of a neighbouring mol­ecule. In addition, the crystal structure exhibits inter­molecular C—H⋯N inter­actions

3,3′-Dimethyl-1,1′-[2,2′-bipyridine-5,5′-diylbis(methyl­ene)]diimidazol-3-ium bis­(hexa­fluoro­phosphate)

The title compound, C20H22N6 2+·2PF6 −, was prepared by the reaction of 5,5′-bis­(bromo­meth­yl)-2,2′-bipyridine with 1-methyl­imidazole. The main mol­ecule lies on an inversion center located at the mid-point of the C—C bond joining the two pyridine rings. The asymmetric unit therefore contains one half-mol­ecule and one hexa­fluoro­phosphate anion. The dihedral angle between the pyridine and imidazole rings is 76.93 (7)°. In the crystal, weak inter­molecular C—H⋯F hydrogen bonds contribute to the stabilization of the packing

N-(Pyridin-2-ylmeth­yl)pyridin-2-amine

The title compound, C11H11N3, crystallizes with two mol­ecules (A and B) in the asymmetric unit. The geometries of both mol­ecules are very similar, with the exception of the torsion angles of the inter-ring chains; the values for C—N—C—C are 67.4 (5) and −69.3 (5)° for mol­ecules A and B, respectively. The dihedral angles between the pyridyl ring planes are 84.0 (2) and 83.2 (2)° for mol­ecules A and B, respectively. In the crystal, weak inter­molecular N—H⋯N hydrogen bonds and C—H⋯π inter­actions contribute to the stabilization of the packing

Mefenacet [2-(1,3-benzothia­zol-2-yl­oxy)-N-methyl-N-phenyl­acetamide]

The title compound, C16H14N2O2S, crystallizes with two independent mol­ecules in the asymmetric unit. The dihedral angles between the plane of the benzothia­zole ring system and the phenyl ring plane are 51.63 (7) and 60.46 (5)°. In the crystal structure, weak inter­molecular C—H⋯O hydrogen bonds and C—H⋯π inter­actions contribute to the stabilization of the packing

4,4′-Bipyridine–trans,trans-hexa-2,4-dienedioic acid (1/1)

The title cocrystal, C10H8N2·C6H6O4, crystallizes with half-mol­ecules of 4,4′-bipyridine and trans,trans-hexa-2,4-dienedioic acid in the asymmetric unit, as each is located about a crystallographic inversion center. The bipyridine molecule is planar from symmetry. In the dicarboxylic acid molecule, the O—C—C—C torsion angle is −13.0 (2)°. In the crystal, O—H⋯N and C—H⋯O hydrogen bonds generate a three-dimensional network

5,5′-Bis[(1H-imidazol-1-yl)meth­yl]-2,2′-bipyridine methanol disolvate

The title compound, C18H16N6·2CH3OH, was prepared by the reaction of 5,5′-bis­(bromo­meth­yl)-2,2′-bipyridine with imidazole. The main mol­ecule lies on an inversion center located at the mid-point of the C—C bond joining the two pyridine rings. The asymmetric unit therefore contains one half-mol­ecule and one methanol solvent mol­ecule. The dihedral angle between the pyridine and imidazole rings is 72.32 (5)°. In the crystal, weak inter­molecular O—H⋯N, C—H⋯N and C—H⋯O hydrogen bonds contribute to the stabilization of the packing

Bis(benzyl­sulfan­yl)methane

In the title compound, C15H16S2, the structure of the dithioalkyl chain is a helix with an all-cis conformation. The dihedral angle between the mean planes of the terminal aromatic rings is 74.60 (4)°. In the crystal structure, weak C—H⋯π inter­actions contribute to the stabilization of the packing