d,h-μ-Benzylalkoxophosphonato-e-μ-alkoxo-f-μ-oxo-bis[trichloroantimon(V)]-Verbindungen

d, h-μ-Benzylalkoxophosphonato-e-μ-alkoxo-f-μ-oxo-bis[trichloroantimony(V)] Compounds The binuclear antimony(V) complexes Cl₃Sb(O)[R³(R¹O)PO₂](OR²)SbCl₃ 1 – 6 with R¹ = R² = CH₃, C₂H₅ and R³ = C₆H₅CH₂, (CH₃)₃C₆H₂CH₂ in solution slowly exchanges the R² groups between the oxygen atoms of the Sb₂O₂ ring. The SbOPOSb ringsystem makes rapid pseudorotation. The isomeres are detected by nmr spectroscopy. 1 (R¹ = R² = CH₃) crystallizes in the orthorhombic space group Pnma with a = 1247.0, b = 1324.1, c = 1207.9 pm and Z = 4. 2 (R¹ = CH₃, R² = C₂H₅) and 5 (R¹ = R² = CH₃, R³ = (CH₃)₃ · C₆H₂CH₂) crystallizes triclinic in the space group P-1 with a = 984.1, b = 1026.7, c = 1079.9 pm, α = 87.93, β = 75.70, γ = 87.62° and Z = 2 and a = 1164.6, b = 1296.9, c = 1712.9 pm, α = 109.9, β = 96.3, γ = 100.2° and Z = 4 resp., with two crystallographically independent molecules in the asymmetric unit.     

d,h-μ-Methansulfonato-, d,h-μ-Methansulfinato-e-μ-hydroxo/alkoxo-f-μ-oxo-bis[trichloroantimone(V)]

d,h-μ-Methanesulfonato-, d,h-μ-Methanesulfinato-e-μ-hydroxo/alcoxo-f-μ-oxo-bis-[trichloroantimonies(V)] The title compounds can be prepared by reaction of dimeric tetrachloroantimony(V) methanesulfinate or methanesulfonate resp. or by reaction of methane sulfinic acid or sulfonic acid resp. with addition compounds of antimony(V) chloride and water/alcohol. The vibrational spectra are assigned and discussed.     

dh-μ-Carboxilato-e-μ-hydroxo-f-μ-oxo-bis[trichloroantimone(V)] Struktur und spektroskopsiche Untersuchungen

dh-μ-Carboxilato-e-μ-hydroxo-f-μ-oxo-bis[trichloroantimonies(V)] Structure and Spectroscopic Investigations The title compounds can be prepared by reaction of SbCl₅ · H₂O and RCOOH (R ? CF₃, CCl₃, CHCl₂, CH₂Cl, CH₃, CH₃CH₂, (CH₃)₂CH, H) or by reaction of H₅O₂⁺SbCl₆^? and RCO₂SbCl₄ in good yields. ¹H-NMR investigations proove that there is a rapid exchange between the components in the reaction mixture. The vibrational spectra are discussed in view of the CO₂ vibrations and hydrogen bonding. The crystal and molecular structure of dh-μ-Trichloroacetato-e-μ-hydroxo-f-μ-oxo-bis[trichloroantimony(V)] is determined by X-ray analysis.     

Di-μ-sulfato-μ-hydroxo-bis[triamminkobalt(III)]- und Di-μ-selenato-μ-hydroxo-bis[triamminkobalt(III)]-Komplexe

Preparation and properties of two new complexes containing the cations [Co₂{(SO₄)₂(OH)}(NH₃)₆]⁺ and [Co₂{(SeO₄)₂(OH)}(NH₃)₆]⁺ are described. The absorption spectra in the infrared. visible and ultraviolet region are reported and discussed.     

d,h-μ-Carboxilato-e-μ-methoxo-f-μ-oxo-bis[trichloroantimon(V)] Darstellung und Spektren

μd,h-μ-Carboxilato-e-μ-methoxo-f-μ-oxo-bis[trichloroantimony(V)]. Preparation and Spectra The preparation of the unknown d,h-μ-carboxilato-e-μ-methoxo-f-μ-oxo-bis[trichloroantimony(V)] compounds is described (CF₃COO ? 2 , CH₃CH₂COO ? 4 ). The vibrational spectra of 2 and 4 were assigned and compared with those of the corresponding hydroxo compounds 1 and 3 . The mass spectra of 1—4 are measured and the fragmentation pathes are proposed. The formulae of some fragments of 1 with m/e values greater than the molecular weight were determined by high resolution.