Synthesis and characterization of new HgS nanoparticles prepared by Hg(II)-triazole-3-thiol as precursor

Nine Hg(II) complexes, [Hg(DiphtS)2(L-L)](2-7) {where, HDiphtS = 4,5-diphenyl-1,2, 4-triazole-3-thiol; L-L = bis(diphenylphosphino)ethane (dppe) (2); 1,3-bis(diphenylphosphino)pro pane (dppp)(3); 1,4-bis(diphenylphosphino)butane (dppb)(4); 1,10-bis(diphenylphosphino)ferrocene (dppf)(5); 2,20-bipyridine (Bipy)(6) and 1,10-phenanthroline (Phen)(7)} or [Hg(DiphtS)2(L)2] (8-9) {where L = triphenylphosphine (Ph3P) (8) and triphenylphosphine sulphide (Ph3PS) (9)}, have been prepared form the reaction of [Hg(DiphtS)2](1) with phosphine or amine as co-ligands. Then characterized by the IR, NMR (1H and 31P) spectroscopy, elemental analysis, molar conductivity. The results supported the monodentate behaviour of HDiphtS ligand in all complexes (1-9) in anion form through the sulfur atom. Complexes 1, 2 and 6 have been used as single source precursors for the preparation of ethylene-diamine capped HgS-nanoparticles. Powder X-ray diffraction (PXRD), and scanning electron microscopy (SEM), have been used to characterize the HgS nanoparticles. (c) 2022 The Authors. Published by Elsevier B.V. on behalf of King Saud University.

Automated summary

Nine Hg(II) complexes were synthesized and characterized, with some complexes used as precursors for the synthesis of HgS nanoparticles.