Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide Compounds containing three-coordinate gold(I) centers that engage in aurophilic interactions have been obtained by using bridging diphosphines. Colorless crystals of [(μ-dppm){Au(bipy)} 2 ](PF 6 ) 2 ( 1 ) and [(μ-dppe){Au(bipy)} 2 ](BF 4 ) 2 ( 2 ) (where dppm is bis(diphenylphosphino)methane), dppe is 1,2-bis(diphenylphosphino)ethane and bipy is 2,2′ bipyridine have been obtained by a one pot method combining dppm (or dppe) with (tht)AuCl (tht is tetrahydrothiophene), bipy, and ammonium hexafluorophosphate in chloroform. The cations in [(μ-dppm){Au(bipy)} 2 ](PF 6 ) 2 ( 1 ) and [(μ-dppe){Au(bipy)} 2 ](BF 4 ) 2 ( 2 ) have c-clamp-like structures with Au–Au bond lengths of 3.0903(6) and 3.249(1) Å, respectively. Unlike the situation in many two-coordinate gold(I) complexes, where aurophilic interactions induce luminescence, crystals of complexes ( 1 ) and ( 2 ) are not luminescent at room temperature or at 90 K.
Source: ACS Omega
Authors: Sarah Costa, Alan L. Balch
Institution: University of California, Davis
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,935
OpenAlex ID: W4413225835