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 22 October 2020

Structure of tetra­kis­(μ-deca­noato-κ2O,O′)bis­[(4-methyl­pyridine-κN)copper(II)], a dimeric copper(II) complex

The 4-methyl­pyridine (4-Mepy) based dimeric copper(II) carboxyl­ate complex [Cu2(C10H19O2)4(C6H7N)2] or [Cu2(μ-O2CC9H19)4(4-Mepy)2] crystallizes with triclinic (P\overline{1}) symmetry. The two CuII ions exhibit a distorted square-pyramidal environment and are connected into a centrosymmetric paddle-wheel dinuclear cluster [Cu⋯Cu = 2.6472 (8) Å] via four bridging carboxyl­ate ligands arranged in the syn–syn coordination mode. The apical positions around the paddle-wheel copper centers are occupied by the N atoms of the 4-methyl­pyridine ligands. Parts of the deca­noate chains are disordered with occupancy ratios of 0.817 (9):0.183 (9) and 0.65 (5):0.35 (5).

Accepted 21 October 2020

Fifteen 4-(2-meth­oxy­phen­yl)piperazin-1-ium salts containing organic anions: supra­molecular assembly in zero, one, two and three dimensions

Fifteen 4-(2-meth­oxy­phen­yl)piperazin-1-ium salts with organic anions exhibit a range of hydrogen-bonded supra­molecular assemblies in the form of finite aggregates, a chain of rings, ribbons, sheets and three-dimensional networks.

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