forthcoming articles

The following articles are a selection of those recently accepted for publication in Acta Crystallographica Section E: Crystallographic Communications.

See also Forthcoming articles in all IUCr journals.

Accepted 5 March 2018

Structural characterization and Hirshfeld surface analysis of a CoII complex with imidazo[1,2-a]pyridine

The title complex [CoL2Cl2] (L = imidazo[1,2-a]pyridine) exhibits a supra­molecular-layered assembly through π–π stacking inter­actions. The overall inter­molecular inter­actions involved in the structure have been qu­anti­fied and fully described by Hirshfeld surface analysis.

Accepted 30 January 2018

Crystal structure of a supra­molecular lithium complex of p-tert-butyl­calix[4]arene

The crystal structure of a supra­molecular lithium complex of p-tert-butyl­calix[4]arenehas been reported and analyzed. Different from the majority of calixarene–alkali metal complexes, which are formed by direct coordination of the metal cation to the calixarene hy­droxy groups, this complex is stabilized by an inter­play of weak inter­actions involving the methanol mol­ecules surrounding the metal, giving rise to a second-sphere coordination supra­molecular assembly.

Accepted 14 December 2017

Hydrogen bonds and π–π inter­actions in two new crystalline phases of methyl­ene blue

Two unprecedented solid phases of methyl­ene blue (MB+), viz. 3,7-bis­(di­methyl­amino)­pheno­thia­zin-5-ium chloride dihydrate and 3,7-bis­(di­methyl­amino)­pheno­thia­zin-5-ium bis­ulfite, have been obtained and structurally characterized. The effective absence of hydrogen-bond donors in the second compound has important consequences on the stacking geometry and supra­molecular inter­actions of the MB+ ions, which are analysed by Hirshfeld fingerprint plots.

Accepted 13 December 2017

An investigation to elucidate the factors dictating the crystal structure of seven ammonium carboxyl­ate mol­ecular salts

Hydrogen-bonded ladders typically encountered in ammonium carboxyl­ate salts did not form in the presence of a pyridine acceptor group.

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