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Search query: cis/trans-isomers
219 articles match your search "cis/trans-isomers"Results 1 to 10, sorted by relevance:
halogen bonding
We show by single-crystal X-ray diffraction studies and computational analysis that halogen bonding can stabilize a metastable cis-azobenzene derivative in the solid state.
research communications
Puckering effects of 4-hydroxy-L-proline isomers on the conformation of ornithine-free Gramicidin S
The structures of Orn-free Gramicidin S with cis/trans-isomers of Hyp were solved, and the puckering of Hyp was unexpectedly down in both isomers.
research communications
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Three six-coordinate complexes of bis(acetylacetonato)oxovanadium(IV) containing N-donating pyridyl ligands are reported. Both cis and trans isomers were isolated and characterized from these systems.
research communicationsOpen access
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Reaction of [RuCl2(DMSO)4] with 1-benzyl-4-(pyridin-2-yl)-1H-1,2,3-triazole yields two of the four possible isomers of the title compound.
research papers
Two determinations of the structure of trans/cis co-crystals of 1,4-cyclohexanediol are reported, and their intermolecular hydrogen-bond patterns described using the graph-set model.
research papers
The structure of the 1:1 compound of cis- and trans-2,3-tetralindiol, the existence of which has been known for nearly a century, has finally been determined. The likelihood of compound formation between stereoisomers is discussed.
research papers
Two isomers of the molybdenum(II) complex Mo(CO)(C2Me2)(S-Phoz)2 [S-Phoz is 2-(4,4-dimethyloxazolin-2-yl)thiophenolate] have been synthesized and characterized by X-ray diffraction at 100 K and by spectroscopy (NMR and IR). They show quite different Mo—N and Mo—S distances.
research papers
Lattice-energy minimizations are used to investigate orientational disorder in the crystal structure of cis-perinone and combined positional/orientational disorder in the solid solution of cis- and trans-perinone.
research papers
Two geometric isomers of a [Pt(thiolato-κS)2(phosphane-κP)2] complex have been characterized, with the aim of explaining why the cis–trans equilibrium established in solution is not totally displaced towards the trans isomer.
metal-organic compounds
The octahedral cis and trans isomers of dichlorobis(2-picolylamine)iron(II), [FeCl2(C6H8N2)2], co-crystallize in a 1:1 ratio. The cis isomer lies on a twofold axis, whereas the trans isomer lies on an inversion centre. The structure is fully ordered, with both Fe atoms in a pure high-spin state. The Fe, Cl and N(H2) atoms of both isomers lie in the same plane, allowing all Cl and amine H atoms to be engaged in extensive two-dimensional hydrogen bonding. The hydrogen-bonded layers are interconnected through π–π interactions between the pyridine rings. Searches in the Cambridge Structural Database uncover very few examples of such isomer co-existence.
