Silver(I) and Gold(I) Monothiocarbonate Complexes: Synthesis, Structure, Luminescence

Inorganics

Welni Duminy¹  Michael N. Pillay¹  Werner E. van Zyl¹ 

[1] School of Chemistry and Physics, Westville Campus, University of KwaZulu-Natal, Durban 4000, South Africa;

关键词: silver(I);    gold(I);    monothiocarbonate;    coordination polymer;    synthesis;    structure;   

DOI  :  10.3390/inorganics10020019

来源: DOAJ

【 摘 要 】

The monothiocarbonate ligand, [S(O)COR]⁻, is unusual and rare regarding its use in the formation of coordination compounds. Here, we report the synthesis and structures of the silver(I) and gold(I) monothiocarbonate complexes, [{Ag₄(SC(O)OⁱPr)₂(2,2′-bpy)₄}(PF₆)₂]_n (1) and [Au₂{S(O)COⁱPr}₂(dppe)]_n (2), respectively. Both complexes are coordination polymers, with 1 being cationic and 2 neutral. The uniqueness of the ligand is that it is monoanionic and contains both a ‘hard’ O-donor ligand and a ‘soft’ S-donor ligand in a O-C-S manifold with, in principle, electron delocalization across the three atoms. However, for both complexes 1 and 2, it was found that the binding occurred exclusively through the S-donor atom, while the C=O portion remained dangling and was not involved in bonding. This bonding mode departs significantly from the symmetrical S-C-S type ligand such as dithiocarbamates. The structures were analysed and confirmed by NMR and X-ray crystallography.

【 授权许可】

Unknown