forthcoming articles

The following articles are a selection of those recently accepted for publication in Acta Crystallographica Section C: Structural Chemistry.

See also Forthcoming articles in all IUCr journals.

Accepted 28 June 2016

Synthesis, crystal structures and luminescent properties of eight mononuclear zinc(II), cadmium(II), cobalt(II) and nickel(II) complexes with 5-(4-methyl­phen­yl)-3-(pyridin-2-yl)-1H-1,2,4-triazole

Accepted 28 June 2016

Different acid–base behaviour of a pyrazole and an isoxazole with organic acids: crystal and mol­ecular structures of the salt 3-(4-fluoro­phen­yl)-1H-pyrazolium 2,4,6-tri­nitro­phenolate and of the cocrystal 4-amino-N-(3,4-di­methyl-1,2-oxazol-5-yl)benzene­sulfonamide–3,5-di­nitro­benzoic acid (1/1)

Crystallization of (4-fluoro­phen­yl)pyrazole with 2,4,6-tri­nitro­phenol gives a salt, but a similar crystallization of 4-amino-N-(3,4-dimethyl-1,2-oxazol-5-yl)benzene­sulfonamide with 3,5-di­nitro­benzoic acid gives a 1:1 cocrystal containing neutral mol­ecules. The ionic components in the salt form a three-dimensional hydrogen-bonded structure and the neutral components in the cocrystal form complex hydrogen-bonded bilayers.

Accepted 2 June 2016

Mol­ecular structures of five scorpionate-type tris­(1-tert-butyl-2-mercaptoimidazol­yl)hydro­borate complexes of titanium, zirconium and hafnium

The structural characterization of the tris(1-tert-butyl-2-mercaptoimidazol­yl)hydro­borate, [TmBut], complexes, Cp[κ3S2,H-TmBut]MCl2 (M = Zr and Ti), by X-ray diffraction demonstrates that the [TmBut] ligand coordinates in a κ3S2,H mode, while the benzyl compounds [TmBut]M(CH2Ph)3 (M = Zr and Hf) exhibit κ3S3 coordination.

Accepted 22 April 2016

Nitrile coordination to rhodium does not lead to C—H activation

Tris(pyrazol­yl)borate complexes of rhodium are well known to activate C—H bonds. The reactive [Tp′Rh(PMe3)] fragment [Tp′ is tris­(3,5-di­methyl­pyrazol-1-yl)hydro­borate] is found to react with valero­nitrile to give a κ1N-bound complex. In contrast to the widespread evidence for the reaction of this fragment with C—H bonds via oxidative addition, no evidence for such a complex is observed.

Accepted 20 April 2016

The silver(I) complex [HB{3-(CF3),5-(CH3)Pz}3]AgNCCH3 supported by a partially fluorinated scorpionate ligand

The silver(I) adduct [HB{3-(CF3),5-(CH3)Pz}3]AgNCCH3 was obtained by treating [HB{3-(CF3),5-(CH3)Pz}3]Na with CF3SO3Ag in the presence of aceto­nitrile, and was isolated in 85% yield. Single-crystal X-ray diffraction analysis reveals that the AgI center has a pseudo-tetra­hedral all-nitro­gen coordination sphere and is supported by a tris­(pyrazol­yl)borate ligand that binds to the AgI center in a κ3-fashion.

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