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The asymmetric unit of the title compound, [PdCl(C9H12NSe)(C18H15P)], contains two independent mol­ecules. In both cases, the Pd2+ cations are coordinated by the Se and N atoms of the chelating bidentate 2-[(di­methyl­amino)­meth­yl]benzene­seleno­late ligand. The chloride ligand lies trans to selenium and the tri­phenyl­phosphane ligand is trans to nitro­gen. The Pd—Se bond lengths in the two independent coordination environments of Pd are 2.3801 (4) and 2.3852 (4) Å, the Pd—P bond lengths are 2.2562 (8) and 2.2471 (8) Å, the Pd—N bond lengths are 2.172 (2) and 2.158 (2) Å, and the Pd—Cl bond lengths are 2.3816 (8) and 2.3801 (8) Å. The square-planar coordination around one Pd2+ cation is less distorted than that around the other.

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The dinuclear title compound, [PdCl{Se[(C5H5)Fe(C5H3)2CH2N(CH3)2]}]2 was obtained by the reaction of [PdCl2(NCPh)2] with 2-[(N,N′-di­methyl­amino)­meth­yl]ferro­cene­seleno­late and the crystals for the structure determination were grown from a mixture of THF and n-hexane. Both PdII atoms are coordinated by the bridging Se atoms and by the amino N atoms of the bidentate 2-[(N,N′-di­methyl­amino)­meth­yl]ferrocene­seleno­late ligand, as well as by Cl atoms, and show a distorted square-planar coordination. The angle between the Pd—Se—Se planes of the two Pd atoms is 149.31 (3)°. Weak Cl...H hydrogen bonds link the binuclear complexes into a three-dimensional network.
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