[(HEt2DTO) PhPt(Me2SO)] reacts with diphenylphosphinomethane and provides the metalloligand [(HEt2DTO) PhPt(dppm-kappa P)] (1) (HEt2DTO, N,N'-diethyldithiooxamidate; Ph = phenyl; dppm = bis(diphenylphosphino)methane). The uncoordinated phosphorous of the dangling dppm in 1 reacts with complexes as metal [(HEt2DTO) PhPt(Me2SO)] (equimolar quantity) and cis-[ Pt(Me2SO)(2)Ph-2] (half molar quantity) leading to the homobinuclear [(HEt2DTO)PtPh](2)(mu-dppm) (2) and the homo-trinuclear [(HEt2DTO) PtPh](2)(cis-[PtPh2(mu-dppm)(2)]) (3) complexes. P-31 and Pt-195 NMR analysis was particularly useful for the characterization of these complexes. In the multinuclear complexes 2 and 3 the terminal N-H center dot center dot center dot N moieties of the S, S-coordinated dithioxamidates may also be exploited to coordinate further metal fragments.
Monocoordinated Diphosphines Dangling in Pt(II) Complexes: Effective Synthons for Polynuclear Platinum Compounds
Giannetto, AntoninoPrimo
;Lanza, Santo
Ultimo
2018-01-01
Abstract
[(HEt2DTO) PhPt(Me2SO)] reacts with diphenylphosphinomethane and provides the metalloligand [(HEt2DTO) PhPt(dppm-kappa P)] (1) (HEt2DTO, N,N'-diethyldithiooxamidate; Ph = phenyl; dppm = bis(diphenylphosphino)methane). The uncoordinated phosphorous of the dangling dppm in 1 reacts with complexes as metal [(HEt2DTO) PhPt(Me2SO)] (equimolar quantity) and cis-[ Pt(Me2SO)(2)Ph-2] (half molar quantity) leading to the homobinuclear [(HEt2DTO)PtPh](2)(mu-dppm) (2) and the homo-trinuclear [(HEt2DTO) PtPh](2)(cis-[PtPh2(mu-dppm)(2)]) (3) complexes. P-31 and Pt-195 NMR analysis was particularly useful for the characterization of these complexes. In the multinuclear complexes 2 and 3 the terminal N-H center dot center dot center dot N moieties of the S, S-coordinated dithioxamidates may also be exploited to coordinate further metal fragments.File | Dimensione | Formato | |
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