CRYSTAL AND MOLECULAR-STRUCTURE OF SPIROBICYCLIC BIS(TETRAPHENYLDITHIOIMIDO DIPHOSPHINATO)LEAD(II), [PB((SPPH(2))(2)N)(2)], CONTAINING A NEW INORGANIC (CARBON-FREE) PBS2P2N CHELATE RING AND PB(ETA(6)-C6H5) INTERACTIONS

被引:51
作者
CASAS, JS
CASTINEIRAS, A
HAIDUC, I
SANCHEZ, A
SORDO, J
VAZQUEZLOPEZ, EM
机构
[1] Departamento de Química Inorgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Galicia
关键词
D O I
10.1016/S0277-5387(00)86619-X
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The title compound, [Pb{(SPPh(2))(2)N}(2)], was obtained by reacting potassium tetraphenyldithioimidodiphosphinate with lead(II) acetate. X-ray diffraction analysis reveals an unsymmetrical (anisobidentate) coordination of the chelating ligands, indicated by non-equal Pb-S interatomic distances [2.695(4) and 2.943(4) Angstrom] and some P-N and P-S bond length alternation within the two NP2S2Pb rings that form the spirobicyclic complex. The lead coordination is supplemented by two additional Pb(eta(6)-C6H5) interactions with two phenyl groups. If these interactions are considered, the geometry of the coordination sphere may be described as distorted octahedral.
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页码:2873 / 2879
页数:7
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