issue contents

Journal logoIUCrDATA
ISSN: 2414-3146

September 2017 issue

Highlighted illustration

Cover illustration: 4-Cyano-3,5-bis­(phen­yl)pyrazole, a symmetrically phenyl substituted 4-cyano pyrazole, was prepared as a precursor for the preparation of scorpionate ligands. The C-C[triple bond]N fragments in the two independent mol­ecules in the asymmetric unit deviate only slightly from linearity, with bonding angles of 179.4 (2) and 178.9 (2)°. In the crystal, mol­ecules are linked by pairs of N-H...N hydrogen bonds, forming inversion dimers with an R22(6) ring motif. See: Zhao, Adeyemi & Pompilius [IUCrData (2017). 2, x171257].

metal-organic compounds


link to html
In the title compound, an RhI centre is coordinated by a H8-BINAP 5,5′,6,6′,7,7′,8,8′-octa­hydro-2,2′-bis­(di­phenyl­phosphan­yl)-1,1′-binaphthyl ligand and by a bidentate η22-coordinated cod (cyclo­octa-1,5-diene) ligand. The asymmetric unit contains one cation, one anion and cocrystallized pentane [occupancy 0.720 (4)], as well as methanol [2 × 0.280 (4) occupancy] mol­ecules.

link to html
In the title compound, the 2-[tris­(pyridin-2-yl)meth­yl]pyridinium ion, monoprotonated species of tetra­kis­(pyridin-2-yl)methane, forms an intra­molecular N—H⋯N hydrogen bond between the pyridinium and one of the pyridine rings. The trans-bis­(aceto­nitrile)­tetra­chloro­ruthenate(III) anions form an undulating sheet parallel to the ac plane by C—H⋯Cl hydrogen bonds.

link to html
In the 2,3-diruthenocenyl­cyclo­propenone, both cyclo­penta­dienyl (Cp) rings are planar and parallel with staggered and eclipsed conformation between the mutual orientations of rings in the two independent sandwiches of ruthenocenyl mol­ecule. The two Cp rings bonded to the cyclo­propenone ring has deviates slightly from the coplanarity with 5.44 (3) and 1.02 (3)°, respectively.

link to html
The title salt was synthesized from 5-bromo­salicyl­aldehyde and a phenyl­boronic acid derivative using the Suzuki–Miyaura cross-coupling reaction (Miyaura & Suzuki, 1979).

link to html
The mol­ecular structure of an osmium(VI) complex comprises six O-atom donors arising from two chelating flavonolate anions and two trans-disposed oxide ligands. Two di­chloro­methane solvent mol­ecules are also present in the crystal.

organic compounds


link to html
The pyrazolo­pyrimidine portion of the mol­ecule is within 0.0270 (1) Å of being planar. π–π stacking inter­actions between the pyrazolo­pyrimidine units, together with C—H⋯π(ring) inter­actions between phenyl rings in adjacent mol­ecules, form stacks running along the b direction.

link to html
The inter­molecular inter­actions in the title compound include C—H⋯O and C—H⋯N hydrogen bonds, and C—H⋯π inter­actions.

link to html
The crystal and mol­ecular structure of a quinoxaline derivative is reported.

link to html
The asymmetric unit of the title compound contains one full mol­ecule in a general position and a half molcule sitting on a crystallographic mirror plane. The mol­ecules form slabs parallel to [001] which are joined by C—H⋯O and C—H⋯N hydrogen bonds.

link to html
The title compound represents a symmetrically substituted 4-cyano pyrazole with two phenyl groups, which is a precursor for the scorpionate ligand.

link to html
In the crystal, mol­ecules are linked into a three-dimensional supra­molecular network by N—H⋯O, C—H⋯O hydrogen bonds and weak C—H⋯π inter­actions.

link to html
The whole mol­ecule of the title compound is generated by twofold rotational symmetry, with the twofold axis bis­ecting the benzene ring.

link to html
In the title hy­droxy­phenyl-substituted salophene compound, there are two intra­molecular O—H⋯N hydrogen bonds forming S(6) ring motifs. The mol­ecule is twisted with the two phenol rings being inclined to one another by 65.9 (3)°

link to html
Bar-shaped dications are found above and beneath a layer of planar dianions and water mol­ecules that is held together by hydrogen bonds.

link to html
In the crystal of the title mol­ecular salt, the various units are linked by O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds, forming a three-dimensional supra­molecular framework.

link to html
In the title compound, two mol­ecular entities form a mol­ecular salt. In the crystal, methane­sulfonate is retained by bifurcated O⋯H—N hydrogen bonds and an N+—H⋯O charge-assisted hydrogen bond.

link to html
The structure of S,S-diphenyl-S-pyrrolidino­imino­sulfonium perchlorate is reported.

link to html
In the new spiro­pyrroline-thia­zole compound, the five-membered thia­zole and pyrrolidine groups adopt envelope conformations. The mol­ecular structure features intra­molecular C—H⋯N and C—H⋯O inter­actions. The crystal structure features C—H⋯N and C—H⋯O inter­actions, which form ring and chain motifs.

addenda and errata


Follow IUCr Journals
Sign up for e-alerts
Follow IUCr on Twitter
Follow us on facebook
Sign up for RSS feeds

[# https x2 cm 20170801 %]