Synthesis and Structure of the Mononuclear Octacoordinate
Complex [Pb(Phen)₂(iso-Bu₂PS₂)₂] and Polynuclear Complex
[Pb(4,4'-Bipy)(iso-Bu₂PS₂)₂]_n: Formation of Ribbons
and Supramolecular Assemblies in Their Crystalline Structures

S. V. Larionov^a, R. F. Klevtsova^a, E. A. Sankova^b, L. A. Glinskaya^a, and T. E. Kokina^a

^a Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences,
pr. Akademika Lavrent’eva 3, Novosibirsk, 630090 Russia

^b Novosibirsk State University, ul. Pirogova 2, Novosibirsk, 630090 Russia

Received June 15, 2007

Abstract—Heteroligand complexes [Pb(Phen)₂(iso-Bu₂PS₂)₂] (I) and [Pb(4,4'-Bipy(iso-Bu₂PS₂)₂]_n (II) were
synthesized, and their crystal structures were determined. The crystals of complex I are monoclinic: a =
17.2011(9) Å, b = 14.1695(7) Å, c = 19.8727(12) Å; = 115.644(1)°, V = 4366.5(4) ų, Z = 4, _calcd =
1.500g/cm³, space group C2/c. The crystals of complex II are triclinic: a = 11.9283(2)Å, b = 12.3814(2) Å, c=
14.0917(3) Å; = 74.705(1), =87.240(1), = 61.448(1), V = 1755.86(6) ų, Z = 2, _calcd = 1.479 g/cm³, space
group P The structure of complex I consists of mononuclear molecules. The coordination polyhedron of the
Pb atom is a distorted tetragonal antiprism N₄S₄ formed by the bidentate chelating ligands Phen and
isoBu₂ Continuous zigzag ribbons along the c axis are formed through contacts of the peripheral atoms
of the Phen molecules of the adjacent complexes. Polynuclear complex II has a chain structure. The coordina-
tion polyhedron of the Pb atom is a distorted octahedron N₂S₄ formed by the bidentate chelating isoBu₂
ligands and bidentate bridging 4,4'-Bipy molecules. Short intermolecular contacts between the Pb and S
atoms of the adjacent chains in structure II result in the formation of supramolecular two-chain assemblies
as volume columns parallel to the b axis. The environment of the Pb atoms in the assembly is formed by pen-
tagonal bipyramids N₂S_{4 + 1}.

DOI: 10.1134/S003602360809012X

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