Gold complexes photochemistry

A review of the photochemistry of gold(lll), and of gold(l), complexes deals both with substitution and redox reactions (263). 

Coordination Chemistry History Coordination Numbers Geometries Copper Inorganic Coordination Chemistry Gold Organometallic Chemistry Halides Solid-state Chemistry Photochemistry of Transition Metal Complexes. 

Photochemistry of the Copper(I)-complexed Zinc/Gold Bisporphyrin-Stoppered [2]Rotaxane... 

These polynuclear gold(I) phosphine complexes have been found to possess rich photochemistry. The phosphorescence of 49 is found to be quenched by a series of energy acceptors such as trans- and cis-stilbene, styrene, hept-l-ene, and cyclohexene [129], The transient absorption difference spectrum of a degassed acetonitrile solution of 49 and irans-stilbene displays absorption bands at about 365 and 390 nm, typical of the triplet excited state absorption spectrum of trans-stilbene, indicating the energy transfer nature of the quenching mechanism, Be-... 

In conclusion, we believe that the photophysical and photochemical studies on polynuclear d " complexes are at a stage of rapid expansion. With the highly flexible molecular geometry and characteristic emissive properties, it is conceivable that luminescent polynuclear copper(I), silver(I), and gold(I) complexes will play a unique and crucial role in inorganic photochemistry. 

Using this strategy, four gold(III) porphyrins have been assembled into a single cluster [17], This tetrameric array shows interesting photochemical behavior and appears to be an improved model for photosynthetic reaction center complexes since it combines the features of exciton annihilation and light-induced electron transfer. Below, we contrast the photochemistry of the bis- and tetrakis- complexes. 

---