181 research outputs found
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
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
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
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