Properties of Phosphine Complexes

The idea of metal-metal bond establishment in the excited state of this complex has also stimulated the interest on the photophysical and photochemical investigations of related d -d complexes. In 1970, Dori and co-workers first reported the luminescence properties of phosphine complexes of d metal centers such as copper(I), silver(I), gold(I), nickel(0), palladium(0), and platinum(0) [12]. Later in 1985, Caspar reported the luminescence properties of polynuclear nickel(O), palladium(O), and platinum(O) complexes of phosphine, phosphite, and arsine [13]. Similar to the related d -d systems, the emissive states of [Pd2(dppm)3] and [Pd Cdpam),] have been suggested to be metal-centered (d-p) in nature modified by metal-metal interaction. 

Yamamoto T, Igarashi K, Komiya S, Yamamoto A (1980) Preparation and properties of phosphine complexes of nickel-containing cyclic amides and esters [(PR3) NiCH2CH(R ) COZ (Z = NR, O)]. J Am Chem Soc 102 7448-7456... 

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