23 research outputs found
trans-Bis(dimethyl sulfoxide-κO)bis(thiosemicarbazide-κ2 N 1,S)cadmium dipicrate dihydrate
In the cation of the title compound, [Cd(CH5N3S)2(C2H6OS)2](C6H2N3O7)2·2H2O, the CdII atom is located on an inversion center. It is hexacoordinated in an octahedral fashion by two thiosemicarbazide molecules, which coordinate in a bidentate manner via the S and N atoms, and to the O atom of two dimethyl sufoxide (DMSO) molecules. The charges are equilibrated by two picrate anions and the complex crystallizes as a dihydrate. In the crystal, these units are linked by a number of O—H⋯O and N—H⋯S hydrogen bonds and weak C—H⋯O interactions, forming a three-dimensional network
Methanol{2-methoxy-6-[(2-oxidopropyl)iminomethyl]phenolato}dioxidomolybdenum(VI)
In the structure of the title compound, [Mo(C11H13NO3)O2(CH3OH)], the MoVI ion is octahedrally coordinated by two oxide O atoms, the N atom and two deprotonated OH groups of the tridentate Schiff base ligand 2-methoxy-6-[(2-oxidopropyl)iminomethyl]phenolate and by a methanol O atom. In the crystal structure, two complexes are linked via O—H⋯O hydrogen bonds, yielding a centrosymmetric arrangement involving the methanol hydroxy group and one of the ligand O atoms coordinated to the MoVI ion
1,4-Bis(hexyloxy)-2,5-diiodobenzene
The centrosymmetric title compound, C18H28I2O2, crystallized in the monoclinic space group P21/c with the alkyl chains having extended all-trans conformations, similar to those in the centrosymmetric bromo analogue [Li et al. (2008 ▶). Acta Cryst. E64, o1930] that crystallized in the triclinic space group P
. The difference between the two structures lies in the orientation of the two alkyl chains with respect to the C(aromatic)—O bond. In the title compound, the O—Calkyl—Calkyl—Calkyl torsion angle is 55.8 (5)°, while in the bromo analogue this angle is −179.1 (2)°. In the title compound, the C-atoms of the alkyl chain are almost coplanar [maximum deviation of 0.052 (5) Å] and this mean plane is inclined to the benzene ring by 50.3 (3)°. In the bromo-analogue, these two mean planes are almost coplanar, making a dihedral angle of 4.1 (2)°. Another difference between the crystal structures of the two compounds is that in the title compound there are no halide⋯halide interactions. Instead, symmetry-related molecules are linked via C—H⋯π contacts, forming a two-dimensional network
Dicyclohexylammonium 3-[(hydroxymethyl)carbamoyl]propanoate
The title compound, C12H24N+·C5H8NO4
−, contains one dicyclohexylammonium cation and one 3-[(hydroxymethyl)carbamoyl]propanoate anion in the asymmetric unit. In the crystal, the ions are linked by intermolecular N—H⋯O and O—H⋯O hydrogen bonds, forming chains propagating along [100]
2,9-Dimethyl-1,10-phenanthrolin-1-ium (6-carboxy-4-hydroxypyridine-2-carboxylato-κ3 O 2,N,O 6)(4-hydroxypyridine-2,6-dicarboxylato-κ3 O 2,N,O 6)zincate(II) 2.35-hydrate: a proton-transfer compound
In the title compound, (C14H13N2)[Zn(C7H3NO5)(C7H4NO5)]·2.35H2O, the ZnII atom is coordinated by two N atoms and four O atoms from the carboxylate groups of the 4-hydroxypyridine-2,6-dicarboxylate and 6-carboxy-4-hydroxypyridine-2-carboxylate ligands, forming a distored octahedral geometry. In the anion, the two pyridine rings are inclined to one another by 87.75 (13)°. Two types of robust O—H⋯O hydrogen bond synthons, viz. R
2
2(16) and R
6
6(42), link the anions to form a two-dimensional network parallel to the bc plane. Furthermore, O—H⋯O, N—H⋯O, N—H⋯N and weak C—H⋯O hydrogen bonds connect the two dimensional networks, forming a three-dimensional structure. In the crystal, there are also C—H⋯π and π–π interactions [centroid–centroid distances of 3.5554 (18) and 3.7681 (18) Å], and C=O⋯π interactions [O⋯centroid distance = 3.117 (2) Å] present. One of the three crystal water molecules shows an occupancy of 0.35
catena-Poly[[triphenyltin(IV)]-μ-phenylphosphinato-κ2 O:O′]
In the structure of the title coordination polymer, [Sn(C6H5)3(C6H6O2P)]n or [PhP(H)O2SnIV(Ph)3]n, the SnIV atom is five-coordinate, with the SnC3O2 framework in a trans trigonal–bipyramidal arrangement having the PhP(H)O2
− anions in apical positions. In the crystal, neighbouring polymer chains are linked via C—H⋯π interactions, forming a two-dimensional network lying parallel to (001)
2,2′-[(2S*,6R*)-Piperidine-2,6-diyl]dipropan-2-ol
In the title compound, C11H23NO2, the piperidine ring has a chair conformation. The two hydroxy H atoms are disordered over two positions with fixed occupancy ratios of 0.57:0.43 and 0.63:0.37. In the molecule, there are two short N—H⋯O interactions. In the crystal, four symmetry-related molecules are linked by O—H⋯O hydrogen bonds to form a cage-like arrangement, centered about the point of intersection of three twofold axes. These cages stack along the [100] direction
{1,1′-[(2,2-Dimethylpropane-1,3-diyl)bis(nitrilomethylidyne)]di-2-naphtholato}dioxidomolybdenum(VI) dichloromethane 1.75-solvate
In the crystal structure of the title compound, [Mo(C27H24N2O2)O2]·1.75CH2Cl2, the MoVI ion is coordinated by two oxide O atoms and by two O and two N atoms of the tetradentate 1,1′-[(2,2-dimethylpropane-1,3-diyl)bis(nitrilomethylidyne)]di-2-naphtholate Schiff base ligand in a distorted octahedral configuration. The compound crystallizes with 1.75 molecules of dichloromethane per complex molecule. In the crystal, symmetry-related molecules are linked by a number of C—H⋯O interactions involving both the Schiff base ligand and the partly disordered dichloromethane solvent molecules, leading to the formation of a two-dimensional network extending parallel to (101)
Bis[tris(1,10-phenanthroline)nickel(II)] tris[dicyanidoargentate(I)] nitrate 4.2-hydrate
The title compound, [Ni(C12H8N2)3]2[Ag(CN)2]3(NO3)·4.2H2O, crystallizes with two independent [Ni(phen)3]2+ cations (phen is 1,10-phenanthroline; both Ni atoms have threefold symmetry and N6 donor sets), three near-linear [Ag(CN)2]− anions, one nitrate anion (N site symmetry 3) and 4.2 water molecules of crystallization, some of which are disordered. The [Ag(CN)2]− anions are situated within cavities created by the phenanthroline ligands of adjacent [Ni(phen)3]2+ cations. Some short C—H⋯O and C—H⋯N interactions may help to establish the packing
N,N′-Bis(4-chlorobenzylidene)-3,3′-dimethoxybiphenyl-4,4′-diamine
The title compound, C28H22Cl2N2O2, crystallized with two independent molecules (A and B) in the asymmetric unit. The two molecules differ essentially in the orientation of the outer aromatic rings. These dihedral angles are 56.07 (13) and 27.62 (15) Å for molecules A and B, respectively. In the crystal, A molecules are related as centrosymmetric pairs through a weak π–π interaction [centroid–centroid distance = 3.6959 (15) Å]. There are also a number of intermolecular C—H⋯O, C—H⋯N and C—H⋯π interactions present