issue contents

Journal logoSTRUCTURAL
ISSN: 2053-2296

March 2004 issue

Highlighted illustration

Cover illustration: Views of N,N'-bis(2-methoxy­benzyl­idene)­ethane-1,2-di­amine (MeSalen),N,N'-bis(2-methoxy­benzyl­idene)­propane-1,3-di­amine (MeSalpr) and N,N'-bis(2-methoxy­benzyl­idene)­propane-1,3-di­amine (MeSalpr), with ellipsoids drawn at the 50% probability level. See Reglinski, Taylor & Kennedy [Acta Cryst. (2004), C60, o169-o172].

inorganic compounds

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The structure of Eu4OI6, isotypic with Eu4OCl6 and Eu4OBr6, is characterized by O-centered tetrahedra of divalent europium cations and hexagonal channels parallel to [001] filled with iodide anions.

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The Rb analogue of grimselite is based on isolated uranyl tricarbonate clusters, [(UO2)(CO3)3], linked through corner sharing to RbO10 and NaO8 polyhedra. The title compound is isostructural with grimselite, with a reduced occupancy of the H2O site (25% versus 50% in grimselite).

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The crystal structure of barium penta­cyano­nitro­syl­ferrate trihydrate, in space group P1, is completely ordered. The study was performed to characterize the structural phase generated by the phase transition undergone by the crystals at 80 K, at which temperature the unit-cell volume doubles. The positional changes of the water mol­ecules with respect to those of the compound at 105 K are presented.

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The title oxy­fluorinated gallium arsenate exhibits a three-dimensional framework, with ten-ring channels in which the diprotonated 1,3-di­amino­propane and water mol­ecules are encapsulated. This network is isostructural with that of phosphates with a ULM-3-type framework.

metal-organic compounds

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RbCrIII(C2O4)2·2H2O and Cs2Mg(C2O4)2·4H2O represent two novel structure types among double-metal oxalate hydrates. Rb2CuII(C2O4)2·2H2O is isotypic with K2- and (NH4)2CuII(C2O4)2·2H2O. All three compounds have layered structures. The Cr, Mg and Cu atoms are six-, six- and (4 + 2)-coordinated, respectively.

organic compounds

Special and virtual issues

Acta Crystallographica Section C is planning special issues on

The Structural Chemistry of Homogeneous and Heterogeneous Catalysts

NMR Crystallography.

Full details are available on the special issues page.

The latest virtual issue, featuring Coordination polymers and with an introduction by Len Barbour, was published in July 2014.

What are the 'most read' articles from the recent special issues?

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