Bis(alkinyl)-bipyridyl-platin(II)-Komplexe: Ein einfacher Zugang zu zweikernigen Platin(II)Kupfer(I)-Verbindungen

Add time:08/11/2019    Source:sciencedirect.com

The reaction of [Pt](CCPh)2 (1) {[Pt]=(bipy)Pt; bipy=2,2′-bipyridyl} with [CuX]n (2a, X=Cl; 2b, X=Br) produces the heterodinuclear platinum(II)copper(I) complexes of structural type {[Pt](CCPh)2}CuX (3a, X=Cl; 3b, X=Br) in high yields. The result of the X-ray structure analysis of 1 and 3b is reported. Complexes 1 and 3b crystallize in the monoclinic space group P21/c with the following parameters: 1: a=17.5714(1), b=15.1585(1), c=15.0105(1) Å, β=90.933(1)°, V=3997.61(4) Å3 and Z=8; 3b: a=9.5151(1), b=10.5178(2), c=22.0030(3) Å, β=102.120(1)°, V=2151.93(6) Å3 and Z=4. In 3b both PhCC ligands are σ-bonded to the platinum atom as well as η2-coordinated to the copper(I) center. The Pt(CCPh)2CuBr building block is distorted from planarity. The copper atom is by 0.784(4) Å out of the Pt(CCPh)2 plane.

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