Two-dimensional conjugated organogold networks with anthra-tetrathiophene repeat models are synthesized by thermally activated debrominative coupling of two,5,9,12-tetrabromoanthra[1,2-b:4,3-b′:5,6-b′′:8,7-b′′′]tetrathiophene (TBATT) precursor molecules on Au(111) surfaces underneath ultra-high vacuum (UHV) circumstances. Performing the response on iodine-passivated Au(111) surfaces promotes formation of extremely common constructions, as revealed by scanning tunneling microscopy (STM). In distinction, coupling on naked Au(111) surfaces leads to much less common networks because of the simultaneous expression of competing intermolecular binding motifs within the absence of error correction. The carbon–Au–carbon bonds confer outstanding robustness to the organogold networks, as evidenced by their excessive thermal stability. As well as, as urged by density useful concept (DFT) calculations and underscored by scanning tunneling spectroscopy (STS), the organogold networks exhibit a small digital band hole within the order of 1.0 eV attributable to their excessive π-conjugation.
