| 1. |
- Aberg, V., et al.
(author)
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Synthesis and absolute configuration of methyl(-)-(3R)-8-(4-bromophenyl)-7-(naphthalen-1-yl-methyl)-5-oxo-2,3-dihydro-5H-thiazolo 3,2-a pyridine-3-carboxylate
- 2002
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In: Acta Crystallographica Section E. - : International Union of Crystallography (IUCr). - 1600-5368. ; 58, s. o812-o814
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Journal article (peer-reviewed)abstract
- The title molecule, C26H20BrNO3S, contains a ring-fused 2-pyridinone framework substituted with a 4-bromo-phenyl-, a naphthalen-1-ylmethyl and a methoxycarbonyl substituent. The main goal of this work was to confirm the stereochemistry for the methoxycarbonyl substituent, which proved to be 3R. Moreover, the 4-bromophenyl substituent was shown to be rotated out of the plane of the 2-pyridinone ring, with a torsion angle of 61.2 (5)degrees. To allow the best packing arrangement, the naphthalen-1-ylmethyl substituent is positioned to mediate an intermolecular pi-pi interaction.
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| 2. |
- Boström, Dan, et al.
(author)
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Hexakis(dimethyl sulfoxide-kappa O)aluminium(III) trichloride
- 2003
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In: Acta Crystallographica Section E. - 1600-5368. ; 59, s. M934-M935
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Journal article (peer-reviewed)abstract
- The title compound, [Al{(CH3)(2)SO}(6)]Cl-3, crystallizes in the trigonal space group R(3) over bar. In this structure, the O atoms of six dimethyl sulfoxide (DMSO) molecules are bonded to the Al3+ ion in the form of a trigonally distorted octahedron. The Al3+ ion is situated at special site 3b (symmetry (3) over bar), while the Cl- ions are situated at special sites 3a and 6c (symmetries (3) over bar and 3). Considering only the Al3+ ions separately, they are arranged in a slightly distorted cubic close-packed arrangement. In this crystal structure, the Cl- ions occupy both the tetrahedral sites and the octahedral sites, giving a Cl-:Al3+ ratio of 3:1. This geometric condition results in a distorted rhombododecahedral arrangement of Cl- ions around the Al3+ ions.
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| 3. |
- Boström, Dan, et al.
(author)
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Hexakis(dimethyl sulfoxide-KO)aluminium(III) trichloride
- 2003
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In: Acta Crystallographica Section E. - : International Union of Crystallography. - 1600-5368. ; 59:10, s. m934-m935
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Journal article (peer-reviewed)abstract
- The title compound, [Al{(CH3)2SO}6]Cl3, crystallizes in the trigonal space group R. In this structure, the O atoms of six dimethyl sulfoxide (DMSO) molecules are bonded to the Al3+ ion in the form of a trigonally distorted octahedron. The Al3+ ion is situated at special site 3b (symmetry ), while the Cl- ions are situated at special sites 3a and 6c (symmetries and 3). Considering only the Al3+ ions separately, they are arranged in a slightly distorted cubic close-packed arrangement. In this crystal structure, the Cl- ions occupy both the tetrahedral sites and the octahedral sites, giving a Cl-:Al3+ ratio of 3:1. This geometric condition results in a distorted rhombododecahedral arrangement of Cl- ions around the Al3+ ions.
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| 4. |
- Boström, Dan, et al.
(author)
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Sodium trirubidium metavanadate monohydrate
- 2003
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In: Acta Crystallographica Section E. - : International Union of Crystallography. - 1600-5368. ; E59:11, s. i151-i153
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Journal article (peer-reviewed)abstract
- The title compound, sodium trirubidium metavanadate monohydrate, NaRb3(VO3)4(H2O), crystallizes in the orthorhombic space group Pnma. The structure, which represents a rare type of catena-vanadate, is built up of strongly folded chains of corner-sharing [VO4] tetrahedra, running in the [010] direction with a periodicity of four. A three-dimensional framework is obtained by sodium ions linking adjacent chains in the [001] direction and by rubidium ions linking adjacent chains in the [100] direction. The single water molecule binds to the sodium ion and to two rubidium ions.
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| 5. |
- Casari, Barbara, et al.
(author)
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A redetermination of cis-aquabis(glycinato-κ2N,O)copper(II)
- 2004
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In: Acta Crystallographica Section E: Structure Reports Online. - 1600-5368. ; E60:12, s. m1949-m1951
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Journal article (peer-reviewed)abstract
- The crystal structure of the title compound, [Cu(C2H4NO2)2(H2O)], reported by Freeman et al. [(1964). Acta Cryst. 17, 1463-1470], has been reinvestigated and its absolute configuration established by anomalous dispersion effects. The origin of chirality in the crystalline state of this compound is the formation of right-handed helices from a CuII coordination network self-resolved into a pure enantiomeric phase.
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| 6. |
- Diaz, Jesus Garcia, et al.
(author)
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Bis(cyanamidonitrato-κN)[tris(3,5-dimethylpyrazole)copper(II)
- 2003
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In: Acta Crystallographica Section E: Structure Reports Online. - 1600-5368. ; E59:5, s. m241-m243
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Journal article (peer-reviewed)abstract
- The title compound, [Cu(CN3O2)2(C5H8N2)3], is the first example of a pentacoordinated 3d-central atom involving the cyanamidonitrate ligand. The crystal structure is formed by neutral molecues stabilized by a three-dimensional network consisting of one intramolecular and three intermolecular hydrogen bonds. The Cu atom is pentacoordinated by three N-donor atoms from 3,5-dimethylpyrazole neutral ligands and two N-donor atoms from cyanamidonitrate anions.
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| 7. |
- Eriksson, Annika, 1975, et al.
(author)
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Pentapotassium sodium hexasulfatodicerate(III)
- 2003
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In: Acta Crystallographica Section E: Structure Reports Online. - 1600-5368. ; E59:11, s. i149-i150
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Journal article (peer-reviewed)abstract
- K5Na[Ce2(SO4)6] contains two CeIII ions, cross-linked via two oxygen and four sulfate bridges, a unique configuration for cerium sulfates. Each cerium is (8 + 2)-coordinated by O atoms of four sulfate groups by bidentate linkages.
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| 8. |
- Eriksson, Annika, et al.
(author)
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Tetramethylammonium tetraaquadichlorochromium(III) trichloride dihydrate
- 2004
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In: Acta Crystallographica Section E: Structure Reports Online. - 1600-5368. ; E60:7, s. m930-m932
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Journal article (peer-reviewed)abstract
- The title metal-organic octahedral chromium compound, (C4H12N)2[CrCl2(H2O)4]Cl3·2H2O, was synthesized according to the Palmer method. The chromium complex ion possesses mirror symmetry and has two axial Cl- ions and four equatorial water molecules. The octahedral complex cation and tetramethyl ammonium tetrahedra pack in a 'parquet'-style pattern, with Cl- ions and water molecules in between the 'bricks'. The structure is compared with aquapentachlorochromate(III) complexes in the literature.
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| 9. |
- Eriksson, L, et al.
(author)
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Mn1-xFexS, x similar or equal to 0.05, an example of an anti-wurtzite structure
- 2001
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In: Acta Crystallographica Section E. - : MUNKSGAARD INT PUBL LTD. - 1600-5368. ; 57, s. I92-I93
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Journal article (peer-reviewed)abstract
- The mineral rambergite, hexagonal manganese sulfide, is found to crystallize in the inverse wurtzite structure, i.e. the wurtzite type structure but with the opposite absolute configuration, which can also be named anti-wurtzite. Rambergite was first foun
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| 10. |
- Fischer, Andreas, et al.
(author)
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A 2-propanol solvate of (RS)-phenylsuccinic acid
- 2004
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In: Acta Crystallographica Section E. - : International Union of Crystallography (IUCr). - 1600-5368. ; 60, s. O979-O981
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Journal article (peer-reviewed)abstract
- A solvate of (RS)-phenylsuccinic acid (RS-PSA) has been obtained from 2-propanol ( IPA). The compound, C10H10O4.C3H8O, crystallizes in the monoclinic crystal system (space group C2/c). It features molecules of the S form of the acid, one of whose carboxy groups is connected to one carboxy group of a molecule of the opposite chirality via two hydrogen bonds. The second carboxy group of the S molecule is connected to two other S molecules via the OH groups of two 2-propanol solvent molecules.
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