Abstract
Crystals of the title compound are triclinic, space group P, with a= 17.3574, b= 11.3271, c= 12.9940 Å, α= 113.8404, β= 114.0116, γ= 103.7998°, and Z= 2, and comprise binuclear units of composition Pb2Ph2(O2CMe)4·H2O with an additional molecule of benzene occupying a cleft position in the crystal lattice. The geometry at each of the lead atoms is that of a distorted pentagonal bipyramid, with the axial positions being occupied by the phenyl groups. The equatorial sites of one lead atom are occupied by oxygen atoms from two chelating acetate groups and the water molecule. The second lead atom is also chelated by two acetate groups, and the fifth equatorial position in the co-ordination sphere of this lead atom is occupied by a triply bridging oxygen atom of an acetate group chelating the other lead. In addition, the two halves of the binuclear unit are also held together by a hydrogen bond between the water molecule and a carbonyl oxygen of an acetate group chelating the second lead atom. The chelation of all four acetate groups is unsymmetrical, with Pb–O bond distances falling in the range 2.32(2)–2.72(2)Å. The Pb–O(H2O) distance is 2.58(2)Å.
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