Different phosphorescent excited states of tetra- and octanuclear dendritic-like phosphine gold(i) thiolate complexes: photophysical and theoretical studies†
Abstract
The study of the photophysical properties of dendritic-like phosphinothiolate gold(I) complexes has been carried out. The studied complexes are two series of analogous compounds bearing 4 or 8 metal centers: the tetranuclear [Au4(S-C6H4-X)4{DAB-G0-(PPh2)4}] (X = F (3), MeO (4), Me (5) and NO2 (6)) and the octanuclear [Au8(S-C6H4-X)8{DAB-G1-(PPh2)8}] (X = F (9), MeO (10), Me (11) and NO2 (12)) complexes. All compounds are brightly luminescent in solid state at 77 K displaying lifetimes in the microsecond range. The correlation between the substituent in position four of the benzenethiolate