Benzothiadiazole-Au(I) complexes as efficient room-temperature phosphors in solution

• A series of benzothiadiazole-Au(I) complexes with phosphine or carbene ligands has been synthesized, structurally characterized and investigated for their photophysical properties. These are the first organometallic Au(I) complexes that contains a C-Au bond on the highly electron-deficent benzothiadiazole unit. The complexes exhibit room temperature phosphorescence in solution (Fphos = 0.03-0.06), which is notable for mononuclear Au(I) complexes without intervening alkynyl bridges. [NK1] Their emissive nature was attributed to the triplet manifold of the benzothiadiazole motif that is efficently populated due to the direct linkage of gold.  Hence, we show that direct C-auration of a weakly emissive aromatic heterocycle can gives access to efficent room temperature phosphorescence - a feature  that is  higly desirable for numerous applications within materials and life sciences.

Ämnesord

NATURVETENSKAP  -- Kemi -- Fysikalisk kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences -- Physical Chemistry (hsv//eng)

Nyckelord

phosphor; excited state; time-resolved spectroscopy; gold complexes

Kemi med inriktning mot kemisk fysik

Chemistry with specialization in Chemical Physics

Publikations- och innehållstyp

vet (ämneskategori)

ovr (ämneskategori)