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February 2023 issue
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Cover illustration: (E)-N-Phenyl-N-(phenylcarbamoyl)-3-[propyl(trimethylsilyl)amino]acrylamide, an insertion product from propyl(trimethylsilyl)[2-(trimethylsilyl)ethenyl]amine and phenyl isocyanate, was obtained in the course of work on different types of silicon–nitrogen compounds. Si—N bonds can be subjected to the insertion of different heteroallenes such as CO2 and isocyanates. See: Herbig & Böhme [IUCrData (2023). 8, x230117].
metal-organic compounds
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The `tromancenium-8-carboxylic acid' entity with a hexafluoridophosphate counter-ion represents a rare case of a cationic carboxylic acid.
CCDC reference: 2239883
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In the title hydrido rhodium(I) monocarbonyl complex, one bisphosphite ligand coordinates in the expected bidentate mode, whereas the other coordinates to the metal in a monodentate mode.
CCDC reference: 2238871
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The structure of the title compound exhibits disorder around a
axis. The 4-methoxypyridine ligands have a propeller-like arrangement around the ruthenium at 52.01° from the RuN4 plane.
CCDC reference: 2243464
organic compounds
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The structure of a C16 benzalkonium chloride (C16BAC) is reported.
CCDC reference: 2239551
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The crystal structure of the title compound exhibits an envelope conformation for the pyrrolidine ring, which includes three chiral centres.
CCDC reference: 2238498
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The title compound crystallizes in the space group C2 with two molecules in the asymmetric unit.
CCDC reference: 2240109
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The title compound, C22H29N3O2Si·0.5CHCl3, crystallizes in the the triclinic space group P
with two host molecules and one chloroform molecule in the asymmetric unit. The core of the molecule consists of a urea unit bound to a 3-amino-acryloyl group. An intramolecular N—H⋯O hydrogen bond is present in both crystallographically independent molecules.
CCDC reference: 2240673
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The title molecule adopts a cup-shaped conformation. In the crystal, layers lying parallel to the ab plane are formed by C—H⋯O hydrogen bonds and C—H⋯π(ring) interactions.
CCDC reference: 2241205
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The title compound represents the first instance of a 1,4-phenylene bis(carbonate) derivative characterized by X-ray diffraction.
CCDC reference: 2241801
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The title molecule is essentially flat. In the crystal the molecules are linked by a system of N—H⋯N hydrogen bonds formed by the hydrazinyl group, a Br⋯Br halogen bond, and π-stacking between the pyridine rings.
CCDC reference: 2243041