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Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296

September 2018 issue

Highlighted illustration

Cover illustration: Two nitro­phenyl-substituted secondary amines have been synthesized and characterized by single-crystal X-ray diffraction, 1H NMR, IR and mass spectrometry. Following nitro­sation of the amine groups via reaction with NaNO2, NO release was measured for each compound over time and the results gauged against the number of NO-donor sites. See Badour, Arnett-Butscher, Mohanty, Squattrito, Lambright & Kirschbaum [Acta Cryst. (2018), C74, 1038-1044].

research papers


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Fused tricapped {TR6} trigonal prisms (R = rare-earth metal and T = transition metal) are the structural building units in binary rare-earth–transition-metal inter­metallics, in dimers in R3Pd2 and in tetra­mers in Er6Co5–x.

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The fluoro and nitro substituents on the phenyl ring of the 1-(4-fluoro­cinnamo­yl)-3-(pyridin-2-yl)pyrazole ligand influence the planarity, inter­actions and also the mol­ecular packing of its rhenium(I) complexes.

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Two series of a total of ten cocrystals involving 4-amino-5-chloro-2,6-di­methyl­pyrimidine with various carb­oxy­lic acids have been prepared and characterized by single-crystal X-ray diffraction.

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The thermal stability of the layered modification of the polycrystalline compound Cu0.5ZrTe2, synthesized at room temperature, has been studied in the temperature range 25–900 °C. In-situ time-resolved synchrotron X-ray diffraction experiments showed that the crystal structure is ruled by the copper occupation of the octa­hedral and tetra­hedral sites in the ZrTe2 inter­layer space.

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In two inclusion compounds of 4,4′-sulfonyl­dibenzoate and tetra­propyl­ammonium with various small ancillary mol­ecules, an isolated hydrogen-bonded tetra­mer is constructed in one and a ribbon is constructed in the other. Although the host anion and guest cation are the same, the difference in the ancillary small mol­ecules results in different structures, indicating the significance of ancillary mol­ecules in the formation of crystal structures.

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A hydro­thermally stable three-dimensional cobalt(II) metal–organic framework, with a (3,6)-connected topological network, was assembled from 4-(4-carb­oxy­phen­oxy)isophthalic acid. The thermal stability and magnetic properties of this coordination polymer were investigated.

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Two nitro­phenyl-substituted secondary amines have been synthesized and characterized by single-crystal X-ray diffraction, 1H NMR, IR and mass spectrometry. Following nitro­sation of the amine groups via reaction with NaNO2, NO release was measured for each compound over time and the results gauged against the number of NO-donor sites.

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A novel tantalum phosphate, Na13Sr2Ta2(PO4)9, containing isolated [Ta2(PO4)9] units, can emit intense off-white light after doping with Dy3+ ions.

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Hydro­thermal reaction between Zn(NO3)2·6H2O, naphthalene-1,4-di­carb­oxy­lic acid and 1,6-bis­(pyridin-3-yl)-1,3,5-hexa­triene afforded a three-dimensional ZnII coordination network which can be simplified as a unique 6-connected framework with the point symbol 446108.

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Both ordered and disordered crystal structures were found at ambient temperature for (Z)-2-[(E)-(4-meth­oxy­benzyl­idene)hydrazinyl­idene]-1,2-di­phenyl­ethanone. In the disordered structure, the two disorder components are related by a glide movement of the whole mol­ecule by about 1.3 Å. All noncovalent inter­actions (NCIs) have been analyzed experimentally and theoretically.

Special and virtual issues

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Acta Crystallographica Section C has recently published special issues on

NMR Crystallography (March 2017)

Scorpionates: a golden anniversary (November 2016)

Full details are available on the special issues page.

The latest virtual issue features Coordination polymers, with an introduction by Len Barbour.

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

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