Crystal structure of lead(ii) acetylacetonate and the structure of the acetylacetone solvated lead(ii) ion in solution studied by large-angle X-ray scattering

被引：16

作者：

Department of Radiochemistry, Institute of Nuclear Chemistry and Technology, Dorodna 16, PL-03-195, Warsaw, Poland ^{[1
]}

不详 ^{[2
]}

不详 ^{[3
]}

不详 ^{[4
]}

机构：

[1] Department of Radiochemistry, Institute of Nuclear Chemistry and Technology, PL-03-195, Warsaw

[2] Institute of Atomic Energy, PL-05-400, Swierk

[3] National Institute of Public Health, PL-00-725, Warsaw

[4] Department of Chemistry, Swedish University of Agricultural Sciences, SE-750 07, Uppsala

来源：

Dalton Trans. | 2006年 / 33卷 / 3972-3976期

关键词：

29;

D O I：

10.1039/b606543k

中图分类号：

学科分类号：

摘要：

The crystal structure of bis(acetylacetonato)lead(ii) and the structure of the acetylacetone solvated lead(ii) ion in solution have been determined by single-crystal X-ray diffraction and large-angle X-ray scattering (LAXS), respectively. The acetylacetone is deprotonated and acts as a bidentate anionic ligand (acac-) in the solid Pb(acac)2 compound. The lead(ii) ion binds four oxygen atoms strongly in a nearly flat pyramidal configuration with Pb-O bond lengths in the range 2.32-2.37 , and additionally three oxygens from neighboring complexes at 3.01-3.26 . Acetylacetone acts as a solvent (Hacac) at dissolution of lead(ii) trifluoromethanesulfonate forming a pentasolvate with a mean Pb-O bond distance of 2.724(5) . The 6s2 lone electron pair on the lead(ii) ion becomes stereochemically active in the crystalline acetylacetonate complex, while it is inactive in the solvate in solution. The solution was also analysed using IR and 1H NMR spectroscopy. © The Royal Society of Chemistry 2006.

引用

页码：3972 / 3976

页数：4

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