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Journal logoIUCrDATA
ISSN: 2414-3146

July 2018 issue

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Cover illustration: The C3-symmetrical mol­ecule, tris­(4-meth­oxy­phen­yl)stibine exhibits perfect C3-symmetry with one third of the mol­ecule in the asymmetric unit. This compound is observed regularly as a side product in the synthesis of asymmetric sulfides. This report of its structure fills the gap in the row of homologues of the type C21H21O3E, with E being an element of group 14. In the crystal, two mol­ecules are connected by six weak C-H...[pi] inter­actions, forming discrete dimeric units with the anti­mony atom facing outwards. See: Böhm, Golz & Alcarazo, [IUCrData (2017). 3, x180989].

metal-organic compounds


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The title compound, a two-dimensional layered coordination polymer, was prepared during synthetic attempts to prepare a cadmium coordination polymer containing both cis-cyclo­hex-4-ene-1,2-di­carboxyl­ate (chedc) and propane-1,3-diylbis(piperidine-4,1-di­yl)bis­(pyridin-4-yl­methanone) (4-ppbp) ligands.

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The title compound is an cobalt(III) dibromide complex having a cis arrangement of the bromido, bis­(ethyl­ene-1,2-di­amine) and n-butyl substituents.

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In the complex cation of the title compound, the CoIII ion has a distorted octa­hedral N5Cl coordination set.

organic compounds


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The mol­ecular and crystal structures of the title di­hydro­imidazolone derivative are reported. The crystal packing consists of chains along the c-axis direction, formed by a combination of C—H⋯O hydrogen bonds and C—H⋯π(ring) inter­actions.

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The structure of this coumarin ester derivative features C=O⋯π and π–π stacking inter­actions, which were investigated using Hirshfeld surface analysis.

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The seven-membered ring adopts a boat conformation. In the crystal, inversion-related C—H⋯N hydrogen bonds form dimers, which pack in an alternating fashion.

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The title mol­ecule crystallizes with two mol­ecules with similar conformations in the asymmetric unit. In the crystal, mol­ecules are linked by C—H⋯O and C—H⋯N hydrogen bonds and C—H⋯π inter­action, forming a three-dimensional network.

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The asymmetric unit comprises four independent mol­ecules (AD) of C17H13N5O. In the crystal, mol­ecules form two separate stacks parallel to the b-axis direction: one consists of A and D mol­ecules, and the other of B and C mol­ecules.

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In the title solvate, N—H⋯O, C—H⋯O and C—H⋯S hydrogen bonds, together with C—H⋯π inter­actions, stack chains of mol­ecules along the a-axis direction.

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In 4-phenyl-2,5,5a,6,7,8,9,9a-octa­hydro-1H-1,5-benzodiazepin-2-one, the cyclo­hexyl portion is disordered over two alternate chair conformations in a 91:9 ratio.

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The crystal structure of C3-symmetric tris­(4-meth­oxy­phen­yl)stibine is reported.

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The mol­ecular and crystal structure of 3′,4′-diphenyl-3H,4′H-spiro­[benzo[b]thio­phene-2,5′-isoxazol]-3-one is reported as spiro-isoxazolines are important organic precursors to a number of mol­ecules with biological activities.

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The chromene portion of the title flavanoid derivative is planar, with the various substituents lying close to the same plane. This is due, in part, to the presence of a strong intra­molecular C—H⋯O hydrogen bond and two weak C—H⋯O contacts.

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The phen­oxy group is nearly perpendicular to the di­hydro­pyrimidinium ring. In the crystal, O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds form corrugated layers parallel to the ac plane.
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