A cationic rhodium(I) N-heterocyclic carbene complex isolated as an aqua adduct

The title complex, aqua­[1,3-bis­(2,6-diiso­propyl­phen­yl)imid­az­ol-2-yl­idene](η4-cyclo­octa-1,5-diene)rhodium(I) tetra­fluor­ido­borate, [Rh(C8H12)(C27H36N2)(H2O)]BF4, exihibits a square-planar geometry around the Rh(I) atom, formed by a bidentate cyclo­octa-1,5-diene (cod) ligand, an N-heterocylcic carbene and an aqua ligand. The complex is cationic and a BF4 − anion balances the charge. The structure exists as a hydrogen-bonded dimer in the solid state, formed via inter­actions between the aqua ligand H atoms and the BF4 − F atoms

[2-Butyl-4-(4-tert-butyl­benz­yl)-1,2,4-triazol-3-yl­idene]chlorido[(1,2,5,6-η)-cyclo­octa-1,5-diene]iridium(I)

In the title compound, [IrCl(C8H12)(C17H25N3)], the IrI ion has a distorted square-planar coordination geometry. The N-heterocyclic carbene ligand has an extended S-shaped conformation. The butyl group was refined using a two-part 1:1 disorder model. In the crystal, three unique weak C—H⋯Cl contacts are present. Two of these form a motif described as R 2 1(6) in graph-set notation, while a third forms an R 2 2(8) motif about a crystallographic inversion center. The result is a chain structure which extends parallel to the crystallographic a axis

A cationic rhodium(I) N-heterocyclic carbene complex isolated as an aqua adduct

The title complex, aqua-[1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene] (η 4-cycloocta-1,5-diene)rhodium(I) tetrafluoridoborate, [Rh(C 8H 12)(C 27H 36N 2)(H 2O)]BF 4, exihibits a squareplanar geometry around the Rh(I) atom, formed by a bidentate cycloocta-1,5-diene (cod) ligand, an N-heterocylcic carbene and an aqua ligand. The complex is cationic and a BF 4- anion balances the charge. The structure exists as a hydrogenbonded dimer in the solid state, formed via interactions between the aqua ligand H atoms and the BF 4- F atoms

Linear alkaline earth metal phosphinate coordination polymers: Synthesis and structural characterization

Reaction of alkaline earth metal salts with diphenylphosphinic acid in dimethylformamide solvent afforded four coordination polymers: [Mg 3(O2PPh2)6(DMF)2] ·2DMF (I), [Ca(O2PPh2)2(DMF) 2] (II), [Sr(O2PPh2)2(DMF) 2] (III) and [Ba(O2PPh2)2(DMF) 2] (IV) (where DMF is N,N-dimethylformamide). Single-crystal X-ray diffraction revealed that all four compounds produce linear chain structures in the solid state, with the Ca, Sr and Ba forming isostructural crystals. The bulk materials were characterized by FT-IR and 1H NMR spectroscopy and elemental analyses. © 2014 International Union of Crystallography