We report here on the utilisation of a readily available bidentate aminofluoroalkoxide in lead(II) chemistry. Stable heteroleptic three-coordinate complexes can be produced in high yields, including a convenient amido synthetic precursor and a rare case of PbII-boryloxide.
Trimethylsilylmethyl and bis(trimethylsilyl)methyl derivatives of boron, aluminium, cadmium and mercury
作者:Sadia Al-Hashimi、J.David Smith
DOI:10.1016/s0022-328x(00)92047-3
日期:1978.6
di[bis(trimethylsilyl)methyl] derivatives [(Me3Si)2CH]2ECl. The boron compound may be converted by compounds HX (X = OH, NH2, NMe2) in the presence of bases to compounds [(Me3Si)2CH]2BX but the aluminium—carbon bond in [(Me3Si)2CH]2AlCl is easily broken with formation of (Me3Si)2CH2. Bis(trimethylsilylmethyl)aluminium chloride has been made from tris(trimethylsilylmethyl)aluminium and aluminium chloride
compounds. The ionic character of the Ae-ligand bond encourages bridging coordination, whereas the number of bridging ligands is controlled by stericfactors. DFT computations also indicate that in [Ba(μ2-X1)(X2)]2 heteroleptic dimers, ligand predilection for bridging vs. terminal positions is dictated by the ability to establish secondary interactions between the metals and the ligands.
作者:Adrian-Alexandru Someşan、Erwann Le Coz、Thierry Roisnel、Cristian Silvestru、Yann Sarazin
DOI:10.1039/c8cc02459f
日期:——
The syntheses of the first lead(ii) boroxides are reported. These stable, structurally characterised complexes do not decompose to oxoclusters. A melting temperature of 141 °C was determined for an organolead(ii) boroxide.