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A palladium(II) complex {systematic name: dichlorido[1,3-di-tert-butyl-2,4- bis(tert-butylamino)-1,3,2λ5,4λ5-diazadiphosphetidine-2,4-diselone-k²Se,Se']palladium(II)}, cis-[PdCl2{I}], (II), containing a bis(selenium) ligand based on cyclodiphosph(V)azane, cis-[(tBuNH)(Se)P('-NtBu)2P(Se)(NHtBu)], (I), has been synthesized and structurally characterized. The crystal structure of complex II reveals that the ligand chelates through selenium donors with the natural bite-angle of 110.54 (1)° and a Pd--Se bond distance of 2.444 (1) Å. The coordination around PdII shows a slightly distorted square-planar geometry, as indicated by the angle between the [PdCl2] and [PdSe2] planes of 5.92 (3)°. In the crystal, the molecules are interlinked through weak N--H. . .l and C-- H. . .l hydrogen-bonding interactions. [ABSTRACT FROM AUTHOR]

A palladium(II) complex {systematic name: dichlorido[1,3-di- tert -butyl-2,4-bis( tert -butylamino)-1,3,2λ 5 ,4λ 5 -diazadiphosphetidine-2,4-diselone-κ 2 Se , Se ']pal-ladium(II)}, cis -[PdCl 2 { I }], ( II ), containing a bis-(selenium) ligand based on cyclo-diphosph(V)azane, cis -[( t BuNH)(Se)P(μ-N t Bu) 2 P(Se)(NH t Bu)], ( I reveals that the ligand chelates through selenium donors with the natural bite-angle of 110.54 (1)° and a Pd-Se bond distance of 2.444 (1) Å. The coordination around Pd II reveals that the ligand chelates through selenium donors with the natural bite-angle of 110.54 (1)° and a Pd-Se bond distance of 2.444 (1) Å. The coordination around Pd II shows a slightly distorted square-planar geometry, as indicated by the angle between the [PdCl 2 ] and [PdSe 2 ] planes of 5.92 (3)°. In the crystal, the mol-ecules are inter-linked through weak N-H⋯Cl and C-H⋯Cl hydrogen-bonding inter-actions.