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- W2014723772 abstract "Die zweikernigen Antimon(V)-Komplexe Cl3Sb(O)[R3(R1O)PO2](OR2)SbCl3 1 bis 6 mit R1 = R2 = CH3, C2H5 und R3 = C6H5CH2, (CH3)3C6H2CH2 tauschen bei RT in Lösung langsam die R2-Gruppen aus. Daneben erfolgt rasches Umklappen des SbOPOSb-quasi-Fünfringes. Die Isomerenbildung wird NMR-spektroskopisch nachgewiesen. 1 (R1 = R2 = CH3) kristallisiert orthorhombisch in der Raumgruppe Pnma mit a = 1247,0, b = 1324,1, c = 1207,9 pm und Z = 4. 2 (R1 = CH3, R2 = C2H5) und 5 (R1 = R2 = CH3, R3 = (CH3)3C6H2CH2) kristallisieren triklin in der Raumgruppe P-1 mit a = 984,1, b = 1026,7, c = 1079,9 pm, α = 87,93, β = 75,70, γ = 87,62° und Z = 2 bzw. a = 1164,6, b = 1296,9, c = 1712,9 pm, α = 109,9, β = 96,3, γ = 100,2° und Z = 4 mit zwei kristallographisch unabhängigen Molekülen in der asymmetrischen Einheit. 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." @default.
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- W2014723772 date "1996-06-01" @default.
- W2014723772 modified "2023-10-16" @default.
- W2014723772 title "d, h-?-Benzylalkoxophosphonato-e-?-alkoxo-f-?-oxo-bis[trichloroantimon(V)]-Verbindungen" @default.
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- W2014723772 doi "https://doi.org/10.1002/zaac.19966220619" @default.
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