Transition-metal dithiolene complexes exhibit a variety of properties as a large second and third-order optical nonlinearity, optical limiting and (super-)conductivity when polymerized.For these reasons, they are the object of extensive studies for possible applications as different as dyes for laser and liquid crystal devices, light compensation filters for NIR radiation, but also electronic device applications (semiconductors for field-effect transistors, fabricating organic conductive films, etc).Despite such a strong interest on their electronic properties, no studies have been carried out so far to investigate the first fs to ps time domain, where the early electronic dynamics occurs and most of the aforementioned properties originate. Here we present our first results on a series of square-planar d8 metal mixed-ligand dithiolene complexes investigated with fs time-resolved broadband transient absorption, transient grating and photon-echo. We elucidated their photocycle and relaxation pathways reveling strong modulation of the electronic dynamics on the solvation timescale.

Electronic relaxations in metal mixed-ligand dithiolene complexes investigated with ultrafast optical spectroscopies

245th National Meeting (2013)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.