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April 2015 issue
research communications
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The structure of the water and acetone solvates of bis[4′-(pyridin-4-yl)-2,2′:6′,2′′-terpyridine]manganese(II) bis(hexafluoridophosphate) were obtained. The compounds crystallize in the monoclinic P21/c and orthorhombic C2221 space groups, respectively.
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A variety of 5-aryl-1,2,5-thiadiazolidin-3-one 1,1-dioxides have been developed as inhibitors of the enzyme protein tyrosine phosphatase 1B (PTP1B). For the title compound, there is the expected twisted relationship between the plane of the 1,2,5-thiadiazolidin-3-one 1,1-dioxide ring and the aryl ring to which it is attached, although the dihedral angle of 62.87 (8)° is substantially less than that seen in certain protein–ligand structures.
CCDC reference: 1051176
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The CoII atom in this one-dimensional coordination polymer, with aqua, 4-formylbenzoate and bridging pyrazine ligands, is located on a twofold rotation axis and has a slightly distorted octahedral coordination sphere. Strong intramolecular O—H⋯O hydrogen bonds link the water molecules to the carboxylate O atoms.
CCDC reference: 1051344
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In the compound [CdL2(H2O)4]·2H2O [L = (1-ammonio-1-phosphonoethyl)phosphonate, C2H8NO6P2−], the CdII ion is situated on an inversion centre being coordinated by four aqua molecules in the equatorial plane and two deprotonated phosphonate O atoms from two L ligands in the axial positions in a distorted octahedral geometry. Each ligand L exists in a zwitterionic form, and with an intramolecular O—H⋯O interaction forming an S(6) ring motif and two intramolecular N—H⋯O interactions each generating an S(5) ring motif. In the crystal, N—H⋯O and O—H⋯O hydrogen bonds link complex molecules into a three-dimensional network with voids of 38 Å3 filled with ordered lattice water molecules, which are also involved in O—H⋯O hydrogen bonding.
CCDC reference: 1051338
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The Fe—O and Fe—N bond lengths in the title compound, [Fe(pyim)(H2O)4]SO4, where pyim is 2-(pyridin-2-yl)-1H-imidazole, are markedly different than in the related structure of [Fe(dmbpy)(H2O)4]SO4 where dmbpy is 5,5′-dimethyl-2,2′-bipyridine.
CCDC reference: 1051905
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In the square planar [Pd(C15H13FNO)2] complex, weak C—H⋯O and π–π interactions play important roles in the molecular self-assembly, resulting in the formation of two-dimensional molecular sheets which are further stacked along the b axis.
CCDC reference: 1045879
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The PtII atom adopts a distorted square-planar coordination geometry, being C,N-chelated by a 2′,6′-difluoro-2,3′-bipyridine ligand and O,O′-chelated by a pentane-2,4-dionato anionic ligand.
CCDC reference: 1051825
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In the title compound, the substituted aromatic C atom lies 0.2030 (16) Å out of the anthryl plane, which forms a dihedral angle 88.30 (3)° with the plane of the transoid methacryloyl moiety.
CCDC reference: 1051418
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The cations and anions of the title compound are organized through π–π stacking between the aromatic rings of the 1,10-phenanthroline and the naphthalene-2,6-carboxylate into a two-dimensional structure. The extensive O—H⋯H hydrogen bonds further connect the cations, anions and lattice water molecules into a three-dimensional network.
CCDC reference: 1051837
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The Xe atom in Xe(SO3F)2 is linearly bonded to two O atoms of the fluorosulfate unit.
CCDC reference: 1052852
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The PtII atoms are coordinated in a square-planar fashion. Extensive N—H⋯O bonding between neighbouring molecules results in an hydrogen-bonded framework which has the hxl topology.
CCDC reference: 1053034
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An octahedral complex of iridium(III) with a chelating cycloocta-1,5-diene ligand, a facial arrangement of three chloride ligands and one acetonitrile ligand was isolated serendipitously from an attempted reaction between indene, the chloridocyclooctadieneiridium dimer and HCl. Work-up that included use of acetonitrile solvent led to the formation of a few crystals of the title compound.
CCDC reference: 1053035
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The FeIII complex located on a threefold rotation axis links with dimethylperazine molecules via O—H⋯N hydrogen bonds,forming a three-dimensional supramolecular framework.
CCDC reference: 1053032
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The title compound crystallizes with the two molecules in the asymmetric unit (Z′ = 2) oriented almost perpendicular to each other [dihedral angle between the central core of each molecule = 77.95 (3)°]. The two molecules exhibit similar conformations with an extended structure and are linked by bifurcated hydrogen bonds into a ribbon along the a-axis direction.
CCDC reference: 1052231
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In the title compound, a CoIII center is coordinated by four N atoms and two O atoms, with the monodentate acetate groups of the ligand oriented trans with respect to each other, whereas the pyridine N atoms are coordinated in a cis configuration.
CCDC reference: 1053810
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The title compound crystallizes with two molecules in the asymmetric unit (Z′ = 2) which are linked into dimers by (20) C—H⋯O interactions. These dimers are further linked into sheets in the ab plane by weak intermolecular C—H⋯N interactions.
CCDC reference: 1053989
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A new triple hexakis(molybdate), Ag0.90Al1.06Co2.94(MoO4)5, was synthesized using a solid-state reaction at 845 K. Dimers M2O10 (M = Co/Al) and trimers M3O14 link to the MoO4 tetrahedra by sharing corners and form a three-dimensional framework with the interstitial sites occupied by Ag+ cations.
CCDC reference: 1054352
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Two new chiral cyanide-bridged bimetallic coordination polymers involving the ligand (R)-propane-1,2-diamine (Lpn) are described. One compound is a zigzag cyanide-bridged chain polymer in which the asymmetric unit consists of two independent chiral {[Cu(Lpn)2][Fe(CN)5(NO)]} units and two water molecules, while the second compound is a two-dimensional cyanide-bridged coordination polymer, in which the asymmetric unit consists of two chiral {[Cu(Lpn)2][Cr(CN)6]}− anions bridged by a chiral [Cu(Lpn)2]2+ cation and five water molecules.
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The ruthenocenecarbonitrile molecule exhibits mirror symmetry in the solid state.
CCDC reference: 1054219
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Crystal structure of catena-poly[[aquabis(4-formylbenzoato)-κ2O1,O1′;κO1-zinc]-μ-pyrazine-κ2N:N′]
In the compound, [Zn(C8H5O3)2(C4H4N2)(H2O)]n, the pyrazine ligands bridge the ZnII cations, forming polymeric chains running parallel to the b-axis direction. Water–carboxylate O—H⋯O hydrogen bonds link adjacent chains into layers parallel to the bc plane. The layers are linked via weak pyrazine–formyl C—H⋯O and formyl–carboxylate C—H⋯O hydrogen bonds.
CCDC reference: 1054503
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In three simple clozapinium salts, the unprotonated N atom of the piperazine ring has been variously found to have a pyramidal or planar geometry, with the tricyclic component occupying either the axial or the equatorial position. The supramolecular assembly is one-dimensional in the 3,5-dinitrobenzoate salt, two-dimensional in the hydrogen maleate salt and three-dimensional in the 2-hydroxybenzoate salt.
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In the crystal structures of the racemic para and ortho isomers of 2-(4-nitrophenyl)-3-phenyl-2,3-dihydro-4H-1,3-benzothiazin-4-one, the six-membered thiazine ring of the benzothiazone parent molecule displays a screw-boat conformation and a near-screw-boat conformation, respectively. In the crystals of both isomers, weak C—H⋯O hydrogen-bonding interactions give rise to one-dimensional structures.
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In the title compound, the carbazole ring system is essentially planar (maximum deviation = 0.025 Å). The crystal packing is stabilized by intermolecular C—H⋯π interactions, forming a three-dimensional supramolecular network.
CCDC reference: 967497
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In the title compound, C25H20ClN3O, the dihedral between the carbazole and quinoline ring systems is 50.2 (1)°. The crystal packing features C—H⋯π and π—π interactions, which generate a three-dimensional network.
CCDC reference: 1027676
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The crystal packing of the title compound features O—H⋯O hydrogen bonds, which form one-dimensional chains of molecules further linked via π–π interactions.
CCDC reference: 1054894
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The title compound, has an E conformation about the azomethine double bond and an intramolecular O—H⋯N hydrogen bond involving the phenolic hydrogen and the azomethine N atom. In the crystal, molecules are linked by bifurcated N—H⋯O hydrogen bonds involving the same acceptor atom, forming chains propagating along [001].
CCDC reference: 1055367
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The complex cation and the two crystallographically different iodide anions, each located on a different glide plane, are well separated in the crystal structure. The V(CN)7 core of the cation has the form of a distorted monocapped trigonal prism. This compound is of interest as the first isolable homoleptic seven-coordinate vanadium analog of the 18-electron [V(CO)7]+ monocation.
CCDC reference: 1055983
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