Abstract
The reactions of [bipyH2][UO2Cl4]·3H2O (bipyH2=diprotonated 2,2′-bipyridyl) with a series of neutral and protic oxygen donor ligands have been investigated. N,N-dimethyl formamide (DMF), N,N-dimethyl acetamide (DMA) and dimethyl sulphoxide (DMSO) gave compounds of the type [bipyH2][UO2Cl4(L)2] (L=DMF or DMA) and [bipyH2][UO2Cl4(DMSO)n] (DMSO)3-n (n=1 or 2), while [bipyH2][UO2Cl4-(3PNO)(DMSO)n](DMSO)2-n (n=1 or 2) and [bipyH][UO2Cl3(4PNO)(DMSO)] were obtained with 3-picoline N-oxide (3PNO) and 4-picoline N-oxide (4PNO) respectively from DMSO medium. With excess 2-picoline N-oxide (2PNO) the compound [bipyH][UO2Cl3(2PNO)](DMSO) was obtained. Reaction with acetyl acetone (AcAcH) and 8-hydroxy quinoline (QH) in 1:1 mole ratio in DMSO gave compounds of the type [bipyH2][UO2Cl3(L′)(DMSO)] (L′=AcAc or Q). The compounds have been investigated by i.r. spectra, powder x-ray diffraction and molar conductivity measurements.
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