Non-covalent interactions at bis(pyrazole)silver(i) or -gold(i) cations

Rapid access to sulfate-encapsulated symmetrical and asymmetrical capsules based on silver–pyrazole complex cations

A new class of sulfate-encapsulated symmetrical and asymmetrical capsules is developed through ion-pair complexation.

The crystal structure of chlorido(2-(1H-pyrazol-3-yl)phenolato-κ2 N,O)(2-(1H-pyrazol-3-yl)phenol-κN)copper(II), C18H15ClCuN4O2

C18H15ClCuN4O2, triclinic, P1̄ (no. 2), a = 8.938(3) Å, b = 9.228(3) Å, c = 12.127(6) Å, α = 105.478(7)°, β = 110.358(8)°, γ = 99.727(6)°, V = 865.0(6) Å3, Z = 2, R gt(F) = 0.0504, wR ref(F 2) = 0.1447, T = 296(2) K.

New types of Cu and Ag clusters supported by the pyrrole-based NNN-pincer type ligand

While the neutral ligand 2,5-bis(3,5-dimethylpyrazolylmethyl)pyrrole gives the dihalide ion bridged binuclear and coordination polymers, its anionic form affords a new type of tetranuclear ‘hourglass’ shaped copper(i) and triangular silver(i) clusters owing to its increased denticity.

Weaving an infinite 3-D supramolecular network via AuI⋯AuIII aurophilicity and C–H⋯Cl hydrogen bonding

The use of ligand-unsupported Au^I⋯Au^III interactions to increase the structural dimensionality to a 3-D array was demonstrated.

Synthesis and structural characterization of silver(i), copper(i) coordination polymers and a helicate palladium(ii) complex of dipyrrolylmethane-based dipyrazole ligands: the effect of meso substituents on structural formation

A striking difference in the structures of silver complexes was observed because of the different substituents at the meso carbon atom of the dipyrrolylmethane-based ligand.

Bis(3,5-dimethyl-1H-pyrazole-κN)silver(I) hexa-fluorido-anti-monate

The title compound, [Ag(C₅H₈N₂)₂]SbF₆, contains an Ag⁺ cation almost linearly bonded to two N atoms of dimethylpyrazole ligands [N—Ag—N = 176.54 (18)°]. The structure exhibits hydrogen bonding between the two dimethyl­pyrazole H atoms and two F atoms of one hexa­fluorido­anti­monate anion. Three relatively short Ag⋯F contacts [2.869 (6), 2.920 (7), and 3.094 (7) Å] exist between the cation and three different SbF₆⁻ anions. The crystal used for data collection was found to be twinned by non-merohedry, with the two components being related by a 180° rotation around the real or reciprocal a axis. Integration resulted in 11.2% of the total peaks being assigned to component 1, 11.2% to component 2, and 77.6% to both components.