4,4′-Trimethyl­enedipiperidiniumbenzene-1,4-dicarboxyl­ate

The hydro­thermal reaction of benzene-1,4-dicarboxylic acid and 4,4′-trimethyl­ene dipiperidine leads to the formation of the title compound, C13H28N2 2+·C8H4O4 2−. The anion is located on a center of inversion whereas the cation is positioned on a twofold rotation axis. In the crystal structure, the anions and cations are linked by N—H⋯O and N—H⋯(O,O) hydrogen bonds

catena-Poly[[diaqua­magnesium(II)]-bis­(μ-5-ammonio­isophthalato-κ2 O 1:O 3)]

In the title compound, [Mg(C8H6NO4)2(H2O)2]n, the MgII ion lies on a twofold roatation axis and is coordinated in a slightly distorted octa­hedral environment. Pairs of bridging ammonium­isophthalate ligands connect symmetry-related MgII ions, forming chains along [010]. In the crystal, inter­molecular O—H⋯O and N—H⋯O hydrogen bonds link these chains into a three-dimensional network. The centroids of pairs of symmetry-related benzene rings within a chain are separated by 3.5707 (12) Å

Poly[bis­(μ2-4,4′-bipyridine)bis­(3-nitro­benzoato)cobalt(II)]

The hydro­thermal reaction of cobalt nitrate with 4,4′-bipyridine and 3-nitro­benzoic acid lead to the formation of the title complex, [Co(C7H4NO4)2(C10H8N2)2]n. In the crystal structure, the CoII atoms are coordinated by two terminal carboxyl­ate anions and four 4,4′-bipyridine ligands within slightly distorted octa­hedra. The CoII atom and one of the two independent 4,4′-bipyridine ligands are located on a twofold rotation axis, while the second independent 4,4′-bipyridine mol­ecule is located on a centre of inversion. One of the two rings of one 4,4′-bipyridine ligand is disordered over two orientations and was refined using a split model [occupancy ratio 0.68 (2):0.32 (2)]. The CoII atoms are connected by the 4,4′-bipyridine ligands into layers, which are located parallel to the ab plane

Poly[(μ6-benzene-1,3,5-tricarboxyl­ato-κ6 O 1:O 1′:O 3:O 3′:O 5:O 5′)tris­(N,N-dimethyl­formamide-κO)tris­(μ3-formato-κ2 O:O′)trimagnesium(II)]

The title complex, [Mg3(CHO2)3(C9H3O6)(C3H7NO)3]n, exhib­its a two-dimensional structure parallel to (001), which is built up from the MgII atoms and bridging carboxyl­ate ligands (3 symmetry). The MgII atom is six-coordinated by one O atom from a dimethyl­formamide mol­ecule, two O atoms from two μ6-benzene-1,3,5-tricarboxyl­ate ligands and three O atoms from three μ3-formate ligands in a distorted octa­hedral geometry

Poly[diaqua-μ4-biphenyl-4,4′-dicarboxyl­ato-magnesium(II)]

The solvothermal reaction of magnesium nitrate with bi­phenyl-4,4′-dicarboxylic acid in N,N-dimethyl­formamide and water leads to the formation of crystals of the title complex, [Mg(C14H8O4)(H2O)2]n. In the crystal structure, the Mg cations are coordinated by six O atoms from two water mol­ecules and four symmetry-related biphenyl-4,4′-dicarboxyl­ate anions within slightly distorted octa­hedra. The Mg cations are located on a center of inversion, the biphenyl-4,4′-dicarboxyl­ate anions around a twofold rotation axis and the water mol­ecule in a general position. The Mg cations are linked by the anions into a three-dimensional framework

Poly[(μ5-5-amino­isophthalato)aqua­barium]

In the title compound, [Ba(C8H5NO4)(H2O)]n, the BaII ion is eight-coordinated by six O atoms and one N atom from five 5-amino­isophthalate ligands and one water mol­ecule in a distorted dodeca­hedral geometry. The BaII ions are connected via the ligands into a layer parallel to (011). The layers are linked by N—H⋯O hydrogen bonds. The coordinated water mol­ecule is involved in intra­layer O—H⋯O hydrogen bonds

3,3′-Di-tert-butyl-2′-hydr­oxy-5,5′,6,6′-tetra­methyl­biphenyl-2-yl benzene­sulfonate

In the title compound, C30H38O4S, the hydroxyl group bonded to one phenyl ring and an O atom of the benzene­sulfonate group attached to the other phenyl ring of the biphenyl backbone of the structure are involved in an intra­molecular O—H⋯O hydrogen bond. The dihedral angle between the planes of the two aromatic rings of the biphenyl unit is 70.4 (2)°

(E)-N-[2-(Benzyl­iminometh­yl)phen­yl]-2,6-diisopropyl­aniline

The mol­ecular conformation of the title compound, C26H30N2, is reinforced by an intra­molecular N—H⋯N hydrogen bond, resulting in an almost planar [mean deviation of 0.023 (2) Å] S(6) ring. The dihedral angles between the central benzene ring and the terminal unsubstituted and substituted aromatic rings are 64.45 (9) and 89.40 (8)°, respectively

2-(2H-Benzotriazol-2-yl)-6-[(diethyl­amino)meth­yl]-4-methyl­phenol

In the title compound, C18H22N4O, the dihedral angle between the planes of the benzotriazol unit and the phenyl ring of the phen­oxy group is 6.4 (2)°. There is an intra­molecular O—H⋯N hydrogen bond between the phenol and benzotriazol groups

Poly[bis­(μ2-4,4′-bipyridine)­bis­(3-nitro­benzoato)nickel(II)]

The crystal structure of the title complex, [Ni(C7H4NO4)2(C10H8N2)2]n, exhibits a two-dimensional network, which is built up from slightly distorted NiN4O2 polyhedra (2 symmetry), bipyridine ligands, and carboxyl­ate anions. The NiII atoms are six-coordinated by two O atoms of two monodentate carboxyl­ate anions and four N atoms from bipyridine ligands and are connected into layers by the 4,4′-bipyridine ligands