853015-61-9Relevant academic research and scientific papers
Reaction of mercury(0) with the I2 adduct of tetraphenyldithioimidodiphosphinic acid (SPPh2)2NH (HL) - Crystal structures of [Hg(HL)I2] and HgL2
Aragoni, M. Carla,Arca, Massimiliano,Carrea, M. Bonaria,Demartin, Francesco,Devillanova, Francesco A.,Garau, Alessandra,Isaia, Francesco,Lippolis, Vito,Verani
, p. 4660 - 4668 (2004)
The complex [Hg(HL)I2] (1) has been synthesised by reacting liquid Hg(0) in Et2O under mild reaction conditions with the I 2 adduct of HL, HL·I2, while HgL2 (2) has been obtained from the reaction of compound 1 with HL in CH3CN. A single-crystal X-ray investigation of 1 shows four independent molecules in the asymmetric unit, each of which contains an HgII ion coordinated to two iodine atoms and two sulfur atoms of one bidentate neutral ligand in a distorted tetrahedral coordination geometry. Compound 2 consists of two anionic ligands coordinated to an HgII ion, which again displays a distorted tetrahedral coordination sphere. The reaction of 2 with HI (55 wt.-% in water) affords [Hg(HL)2](I)2 (3). Compounds 1, 2, and 3 have been characterised by FT-IR and 31P NMR spectroscopy. Density functional calculations suggest that compound 3 should feature a distorted tetrahedral coordination around the metal centre, with unequal Hg-S bond lengths. ( Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004).
