Polynuclear gold complex

Terroba, R., Fernandez, E.J., Hursthouse, M.B. and Laguna, M. (1998) Dithiolate diphosphine polynuclear gold complexes. X-ray structure of [Au2( X-dppm) (C6F5)2(S2C6H4)]. Polyhedron, 17(15), 2433-2439. 

Figure 2.29 Examples of polynuclear gold complexes with selenide and diphosphine ligands.

Figure 2.64 Polynuclear gold complexes with different bidentate ligands.

A multitude of related polynuclear gold complexes have been prepared utilizing a range of bridging ligands, and their spectroscopic properties have been examined [71]. An example involving 16 individual Au(I) ions deserves mention because of its extreme complexity [72],... 

We shall classify the studies of mono- and polynuclear gold complexes according to the types of atoms coordinated to gold. The numbers incorporated into structural formulae show binding energies of core levels Cls, Nls, P2p, S2p, Au4f7/2, Ols, C12p3/2 for the respective atoms. 

SCHEME 5. Synthesis of a polynuclear gold complex containing bis(diphenylphosphino)methanide ligands... 

Polynuclear Au(I) pentafluorophenyl complexes can also be obtained by reaction of [AulCfiFsjItht)] with polydentate ligands or with gold complexes that still have different coordination sites or can be created before the subsequent reaction. The ligands or complexes that react with [Au(C6F5)(tht)] and the complexes obtained are listed in Table 3.6. 

Since the first report on the photoluminescence of [Au2( X-dppm)2] [2, 3], di- and polynuclear gold(I) phosphine complexes have received considerable attention. 

For di- and polynuclear gold(I) complexes vith two Au(I) centers held in close proximity, a lower energy 5denergy from its mononuclear counterpart is a spectroscopic signature [2, 7, 44]. Excitation to the 5da —> 6pG transition gives rise to a [5da, 6pa] excited state having a formal... 

There are few photochemical studies on dinuclear and polynuclear gold (I) and (III) complexes in the literature. The [ n+ l)pa, nda ] excited states of [Au2(dppm)2] are powerful reductants, with an E° value of—1.6(1) V vs. SSCE (saturated sodium chloride calomel electrode) [3, 4a, 9] however [Au2(diphosphine)2] systems do not... 

This chapter provides an overview of spedroscopic investigations into the photophysics of luminescent mono- and polynuclear gold(I) and -(III) complexes. 

Hartinger, C. G., Phillips, A. D. Nazarov, A. A. Polynuclear Ruthenium, Osmium and Gold Complexes. The Quest for Innovative Anticancer Chemotherapeutics. Cwrr. Top. Med. Chem. 11, 2688-2702 (2011). 

Figure 1.41 Polynuclear gold(I) complexes with bridging chalcogenide ligands.

Scheme 1.3 Synthesis of polynuclear gold(II) ylide complexes.

Luminescence Behavior of Polynuclear Metal Complexes of Copper (I), Silver (I), and Gold (I)... 

All these examples illustrate the wide range of structural variety and their fascinating relationship with the delicate excited state properties in these polynuclear gold(I) chalcogenido complexes. 

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