cis-Dichloro[2-(4-ethoxyphenyltelluro)ethyl methyl sulfide-S,Te]platinum(II) cis-PtCl2[Te(C6H4OC2H5)CH2CH2(CH3)S]

Abstract

another Te or to a P atom.

Synthesis, Characterisation, Complexation and Electrochemistry of Linear Tridentate FcE(CH2)3E′(CH2)3EFc (E, E′ = Se or Te) Ligands: X‐ray Crystal Structures of FcSe(CH2)3Se(CH2)3SeFc and [PtCl{FcSe(CH2)3Se(CH2)3SeFc}]PF6 {Fc = [Fe(η5‐C5H5)(η5‐C5H4)]}

“…The coordination geometry around Pt is substantially square planar, and the chlorine atom deviates the most 2+ . [10] The chelate rings are in the puckered conformation, and the carbon atoms are slightly offset from the coordination plane, www.eurjic.org [14] this can be attributed to the weaker donor property of Se relative to that of Te. By contrast, the Pt-Se2 [2.3699(9) Å] bond is obviously shorter than the other two Pt-Se bonds [2.4126(9) and 2.4158(9) Å], and it is also out of the range of other Pt-Se bond lengths formed by trans Se pairs, such as the 2.4274(5) and 2.4386(7) Å distances found for [Pt{FcSe(CH 2 ) 3 -SeFc} 2 ](PF 6 ) 2 ·2MeCN, [10] the 2.414(2) and 2.421(2) Å distances in [Pt{MeSe(CH 2 ) 3 SeMe} 2 ](PF 6 ) 2 ·2MeCN [15] and the 2.420(3) and 2.417(3) Å ones in [Pt({16}aneSe 4 )](PF 6 ) 2 · 2MeCN.…”

“…[30] Hydrogen atoms were in geometrically generated positions, riding, with the constraint U H = 1.2 U C eq on thermal parameters. The absolute structure was assigned on the basis of Flack's test [31] [0.008 (14) parameter value] in the case of FcSe(CH 2 ) 3 -Se(CH 2 ) 3 SeFc, which crystallises in an acentric space group. For graphics ORTEP-3 was employed.…”

Organotellurium ligands — designing and complexation reactions

“…The trans influence of telluroether donor sites has been presumed most of the time as some what lower or at the most, nearly equal to that of thioether one. We have recently observed 18 that Pt-Cl trans to SMe is 2⋅324(4) Å, whereas in the same molecule of complex, [PtCl 2 (4-EtOC 6 H 4 TeCH 2 CH 2 SMe)], Pt-Cl trans to ArTe is 2⋅336(3) Å. This observation prompted us to synthesize a palladium complex of the same (Te, S) ligand and study further the more general status of relative trans influence of telluro and thioethers.…”

STRUCTURAL ASPECT OF PLATINUM COORDINATION COMPOUNDS: PART III. MONOMERIC SQUARE PLANAR (Pt A2XY AND PtABXY) AND TRIGONAL BIPYRAMIDAL PtII COORDINATION COMPOUNDS

“…In three [89,326,327] [330] contains two CI atoms and a bidentate (S, Te) ligand to give the square planar PtCljSTe chromophore. In three [89,326,327] [330] contains two CI atoms and a bidentate (S, Te) ligand to give the square planar PtCljSTe chromophore.…”