forthcoming articles

In the crystal structure of {(C₂H₇BrN)[SnBr₃]}_n, inorganic polymeric chains created by face-sharing SnBr₆ octa­hedra are inter­leaved by organic cations of 2-bromo­ethyl­ammonium.

γ-SrNCN was synthesized from a mixture of strontium subnitride (Sr₂N) and tetra­cyano­ethyl­ene (C₆N₄) at 38 (3) GPa in a laser-heated diamond anvil cell. The new polymorph crystallizes in the space group I4/mcm (No. 140), where the Sr²⁺ and NCN²⁻ packing can be derived from the CsCl (B2) structure type.

The efficacy of 4-pyrrolidino­pyridine as a strong halogen-bond acceptor is demonstrated and compared to 4-(N,N-di­methyl­amino)­pyridine.

In the title compound, penta­borate [B₅O₁₀(OH)]^6– building units are inter­connected to form (001) layers containing nine-membered rings. Na⁺ and Cs⁺ cations as well as water mol­ecules occupy the inter­layer space.

The title compound, C₁₀H₁₁ClN₂S, consists of a chloro­phenyl ring and a propanoyl moiety bridged over a thio­urea functional group. In the crystal, N—H⋯S hydrogen bonds link the mol­ecules into centrosymmetric dimers. π–π stacking inter­actions may help to consolidate the packing.

In the title mol­ecule, the dihedral angle between the mean plane of the phenyl ring and that defined by the ipso-C—NH—(C=O)—CH₂— unit is 64.49 (11)°. In the crystal, N—H⋯O hydrogen bonds and C—H⋯π(ring) inter­actions form chains extending along the b-axis direction. A Hirshfeld surface analysis showed H⋯H contacts to constitute nearly 70% of the inter­molecular contacts in the crystal.