The title material was synthesised by the treatment of PtCl₂ with 2-(4′-fluorophenyl)-2-oxazoline in a MeOH solution. The crystal system is monoclinic (space group P2₁/n; Z = 2); the unit-cell dimensions are a = 7.7152(7)Å, b = 11.517(1)Å, c = 11.168(1)Å with β = 110.123(2)°; V = 931.8(2)ų). The final R value was 0.0149 (2030 observed reflections: I > 2σ(I)). The Pt atom coordinates with two N-bound oxazolines in addition to two (transoidally disposed) chloride atoms; these interactions result in a square planar geometry around the metal center.

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A novel binuclear copper(II) complex with 2-(methoxycarbonyl)benzoic acid (HL), N,N-dimethylformamide (DMF) and methanol [Cu₂L₄(DMF)(CH₃OH)·CH₃OH] was synthesized. The complex was crystallized in the monoclinic system. The space group was Pn with a = 14.410(3)Å, b = 10.540(2)Å, c = 14.496(3)Å, β = 91.082(4)°, V = 2201.4(9)ų and Z = 2. The final R value was 0.0227. Each Cu(II) ion is coordinated by four carboxylate O donor atoms from four ligands, and by O donor atoms from the solvent molecule, DMF for Cu(1); for Cu(2) it is the O atom of methanol. The whole molecule looks like a “pedal-wheel”. The O-H…O hydrogen bonds between the compound and the solvent molecule stabilize the crystal structure by causing the formation of a one-dimensional chain structure.

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The title copper(II) complex crystallized in the monoclinic space group P2₁ with a = 8.821(1), b = 7.168(2), c = 15.134(1)Å, β = 100.636(8)°, V = 940.5(2)ų, and Z = 2. The complex is a distorted square pyramidal geometry around the copper atom with four nitrogen atoms of two bidentate ligands and one axial Cl atom.

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The title compound, MesNH₃⁺BF₄^-·(CH₃CN) (1) (Mes = 2,4,6-trimethylphenyl), crystallizes in the triclinic space group P1 with a = 8.5468(4), b = 12.9136(7), c = 13.2661(7)Å, α = 64.303(3)°, β = 74.452(2)°, γ = 73.177(2)°, V = 1245.54(11)ų, Z = 2. The crystal packing is stabilized by strong interionic N-H…F and N-H…N hydrogen bonds between anions and cations, resulting in a three-dimensional network structure. One of the two tetrafluoroborate anions is disordered [site occupation factors 0.811(2) and 0.189(2)].

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Figure 1 of the original article (Analytical Sciences: X-ray Structure Analysis Online, 24, x251) should be replaced with the following one.

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