Work

Aurophilic interactions in luminescent, box-like or partial helical cations formed from bis(2-diphenylphosphinoethyl)phenylphosphine (Triphos) and gold(I) ions

Year: 2024

Type: article

Abstract: Two luminescent salts, [Au6(Triphos)4Au(CN)2](CF3SO3)5·5CH2Cl2·C6H5CH3 (1) and [Au6(Triphos)4](PF6)6·2CH2Cl2·6C6H5CH3·H2O (2) where Triphos is bis(2-diphenyl-phosphinoethyl)phenylphosphine have been prepared from non-luminescent precursors. The luminescence in each salt results from aurophilic interactions between two or three gold(I) ions. Crystals of [Au6(Triphos)4Au(CN)2](CF3SO3)5·5CH2Cl2·C6H5CH3 (1) contain a box-like structure with an [Au(CN)2]− ion suspended between two gold(I) ions in the box. Crystals of [Au6(Triphos)4](PF6)6·2CH2Cl2·6C6H5CH3·H2O (2) contain a partial helical structure with pairs of gold(I) ions closely connected and surrounded by helical Ph2PCH2CH2PPh-units from two Triphos ligands.

Source: Polyhedron

DOI: 10.1016/j.poly.2024.117140

Authors: Daniel T. Walters, Sarah Costa, Reza Babadi Aghakhanpour, Marilyn M. Olmstead, Alan L. Balch

Institution: University of California, Davis

Language: English

Topic: Luminescence and Fluorescent Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,510

Funder: National Science Foundation