[en] Triarylantimony Ar₃Sb (Ar = 4-FC₆H₄, 3-MeC₆H₄) is oxidized by hydrogen peroxide to form tetranuclear complexes [(4-FC₆H₄)₂SbO]₄(O₂)₂ and [(3-MeC₆H₄)₂SbO]₄(O₂)₂ (as a DMSO solvate). The structure of the resulting compounds was examined by single crystal X-ray diffraction analysis.

[en] Binuclear antimony compounds with a bridging oxygen atom [Ph₃SbOC(O)R]₂O (R = CF₂CF₃, CF₂CF₂CF₃), [(4-МеC₆H₄)₃SbOC(O)CF₂CF₃]₂O, [(3-FC₆H₄)₃SbOC(O)R]₂O (R = C₆F₅, CF₂CF₃) have been synthesized by reacting equimolar amounts of triarylantimony, carboxylic acid and tert-butyl hydroperoxide in diethyl ether. According to X-ray diffraction data, in the molecules of compounds obtained, the Sb atoms have a trigonal bipyramid coordination with carboxylate ligands and a bridging oxygen atom in axial positions. The intramolecular distances Sb···O with a carbonyl oxygen atom are less than the sum of the van der Waals radii of Sb and O by ~0.2–0.4 Å.

[en] Tri(o-tolyl) antimony dioximates were synthesized by the reaction of tri(o-tolyl) antimony with 5-nitrofurfural and thiophen-2-carbaldehyde oximes in ether in the presence of hydrogen peroxide or tert-butylhydroperoxide (1: 2: 1 mol). Antimony atoms in the reaction products have distorted trigonal-bipyramidal coordination with the intramolecular distances Sb···N shorter than the sum of the van der Waals radii of Sb and N by ~1 Å.

[en] The complexes [Et₂H₂N]⁺₂[ZrCl₆]^2– (1), [Me₃NCH₂Ph]⁺₂[ZrCl₆]^2–•MeCN (2), [Ph₃PC₆H₄(CHPh₂-4)]⁺₂[ZrCl₆]^2–•2 MeCN (3), and [Ph₄Sb]⁺₂[ZrCl₆]^2– (4) were synthesized by the reaction of zirconium tetrachloride with tetraorganylammonium, -phosphonium, and -stibonium chlorides in acetonitrile and structurally characterized. The nitrogen, phosphorus, and antimony atoms in the cations have a distorted tetrahedral geometry. The Zr–Cl distances in the centrosymmetric octahedral [ZrCl₆]²⁻ anions of complexes 1–4 have similar values, the longest bonds being observed in the anion of complex 4. Acetonitrile molecules are involved in the structural organization of the crystals of complex 3via weak hydrogen bonding with phenyl hydrogen atoms of the organylphosphonium cations. In the crystal of 2, no hydrogen bonds between the cations and solvent molecules are observed; acetonitrile molecules fill the cavities formed by cations and anions.

[en] The reactions of tetraorganylphosphonium and trimethylammonium chlorides with hexachloroplatinic acid hydrate in an acetonitrile–diethyl sulfoxide solution produced [Ph₃PCH=CHCH₃]₂[PtCl₆], [Ph₃PCH₂OCH₃]₂[PtCl₆], and [Me₃NH]₂[PtCl₆] complexes. The structure of the resultant platinum complexes was examined by X-ray diffraction analysis.

[en] The energy of combustion of crystalline adamantanecarboxylate of tetraphenylantimony and triphenylantimony bis(1-adamantanecarboxylate) is determined at 298.15 K using a combustion calorimeter with a static bomb. The combustion enthalpies of these substances in the crystalline state at 298.15 K are calculated using the obtained experimental data. Such standard functions of formation as Δ_fH° and Δ_fG° are calculated for the studied compounds in the crystalline state at 298.15 K. The obtained thermochemical properties are analyzed, and their dependences on the molar mass of the substituent with antimony are determined.

[en] The reaction of (4-fluorobenzyl)triphenylphosphonium chloride with ruthenium(III) chloride hydrate in the presence of hydrochloric acid in dimethyl sulfoxide affords the complex [Ph₃PCH₂C₆H₄F-4]₂[RuCl₆]. In the absence of hydrochloric acid, the reaction gives the complex [Ph₃PCH₂C₆H₄F-4][trans-RuCl₄(dmso-S)₂]. The structures of the complexes were studied by ¹H, ¹⁹F, and ³¹P NMR spectroscopy and X-ray diffraction.