issue contents

Journal logoSTRUCTURAL
ISSN: 2053-2296

March 1998 issue

Highlighted illustration

Cover illustration: A Novel Cyclotriphosphazene Complex with a Short Transannular P...P Contact, see Thomas, pages 331-333. Displacement ellipsoids are shown at the 50% probability level for non-H atoms and H atoms have been omitted for clarity.

cif-access (organic compounds)

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In the title compound (efaroxan hydrochloride), homochiral cationic molecules form chains along the b axis of the triclinic cell via N-H⋯Cl hydrogen bonds. The furanyl groups are nearly parallel to the a axis and the imidazolinium rings are roughly perpendicular to it.

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The structure and relative stereochemistry of O-methyldehydronorcacalol, a sesquiterpenoid isolated from Traversia baccharoides Hook f., is established. The hydroxyl group takes part in a bifurcated hydrogen bond, intramolecular with an adjacent methoxy O atom and intermolecular with an acetyl O atom of an adjacent molecule.

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1,3-Oxazolidines are powerful chiral templates for auxiliary-directed asymmetric synthesis. The stereochemical parameters of the title compound are in good agreement with other arylsulfonyloxazolidines.

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In the title molecule, the dihydropyran ring adopts a sofa conformation. The benzopyran ring is distorted from planarity and the phenyl ring forms a dihedral angle of 53.86 (6)° with the dihydropyran ring.

inorganic compounds

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A new synthetic route for the preparation of single crystals of monoclinic VOHPO4.2H2O has been found. The results of the single-crystal structure analysis are compared with those of an earlier X-ray powder structure determination.

metal-organic compounds

organic compounds