Uber die Wellenlängen-Abhängigkeit der Photo-Eliminierung des Biphenyl-Systems aus cis-Bis(phenyl)platin(II)-Verbindungen / On the Wavelength Dependence of the Photoelimination of the Biphenyl System from cis -Bis(phenyl)platinum (II) Compounds

Abstract

Abstract Excitation of the compounds cis -{Pt[P(n-C 4 H 9 ) 3 ] 2 (4-XC 6 H 4 ) 2 } with radiation o f the wavelengths 287.5 and 312.0 nm resulted in the reductive elimination of the substituted biphenyls 4-XC 6 H 4 -C 6 H 4 X-(4) (X=CF 3 ,CH 3 ,C(CH 3 ) 3 ,OCH 3 ), whereas they are photostable towards irradiation of 253.5 nm. It is demonstrated that the elimination is a regiospecific pericyclic reaction at platinum; no free radicals are involved.