forthcoming articles

The following articles are a selection of those recently accepted for publication in Acta Crystallographica Section C: Structural Chemistry.

See also Forthcoming articles in all IUCr journals.

Accepted 17 May 2018

Structural and optical profile of a multi-functionalized 2-pyridone derivative in a crystal engineering perspective

The present work ascribed to the synthesis of a novel 2-pyridone derivative with a new synthetic route associated with profound structural and optical characteristics. The reaction mechanism is also proposed. The variety of substituents associated with the pyridone ring including its keto existence and the chloro-aromatic region cooperatively contributed to the supra­molecular architecture of the mol­ecular system. Large supra­molecular synthons are established through numerous classical and nonclassical hydrogen bonds, including other short nonbonded inter­actions qu­anti­fied from Hirshfeld surface analysis.

Accepted 15 May 2018

Scandium complexes with the tetra­phenyl­ethyl­ene and anthracene dianions

The tetra­phenyl­ethyl­ene dianion (C2Ph42−) exhibits the bis-η3-allyl coordination mode in the Sc complexes [Na(18-crown-6)(THF)2][Sc(η6-C2Ph4)2]·2(THF) and [(1,3-Ph2C5H3)Sc(η6-C2Ph4)(THF)]·0.5(toluene). NMR studies of the [Sc(C2Ph4)2] complex anion are presented. A novel scandium ate complex, [K(THF)2]2[(1,3-Ph2C5H3)2Sc2(C14H10)3]·THF, has a two-dimensional coordination polymer structure and demonstrates both the η6 and μ233 coordination modes of the anthracenide ligand.

Accepted 11 May 2018

pH-induced phase transition and crystallization of softoxometalates into polyoxometalates: a study on crystallization from colloids

Phase transition of colloidal {TEA–MoOx} SOM to crystalline {K·β-Mo8} POM depicting the pre-existence of the SOM phase in the crystallization of POMs.

Accepted 27 April 2018

An unprecedented Zr-containing polyoxometalate tetra­mer with mixed trilacunary/dilacunary keggin-type polyoxotungstate units

A novel zirconium(IV)-substituted polyoxotungstate tetra­mer has been synthesized and structurally characterized. The tetra­mer polyoxoanion consists of two dilacunary Keggin-type germanotungstate units and two trilacunary Keggin-type phospho­tungstate fragments.

Accepted 25 April 2018

Cocrystals of the antimalarial drug 11-aza­artemisinin with three alkenoic acids of 1:1 or 2:1 stoichiometry

The stoichiometry, structures and properties of cocrystals of the anti­malarial drug 11-aza­artemisinin (11-Aza) with trans-cinnamic acid (1:1 ratio), maleic acid (1:1 and 2:1 ratios) and fumaric acid (2:1 ratio) are reported. All structures involve R_{2}^{2}(8) heterosynthons between the 11-Aza lactam functionality and the alkenoic acid with short C=O⋯H—O hydrogen bonds.

Accepted 11 April 2018

Hydrogen bonding and fluorous weak inter­actions in the non-isomorphous {4,4′-bis­[(2,2,3,3-tetra­fluoro­prop­oxy)meth­yl]-2,2′-bi­pyridine-κ2N,N′}di­bromido­palladium and -platinum complexes

Accepted 13 February 2018

Thione–thiol tautomeric equilibrium in the solid state: a complementary 1H NMR/FT–IR/X-ray diffraction structure determination

The thione–thiol solid-state equilibrium in a pyrimidine derivative is analyzed and its presence confirmed through three different techniques (SCXRD, NMR and FT–IR).

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