Tailoring hydrophilic N,N-dialkyl-N′-acylthioureas suitable for Pt(II), Pd(II) and Rh(III) chloride pre-concentration from acid aqueous solutions, and their complex separation by reversed-phase HPLC
dc.contributor.author | Mautjana A.N. | |
dc.contributor.author | Miller J.D.S. | |
dc.contributor.author | Gie A. | |
dc.contributor.author | Bourne S.A. | |
dc.contributor.author | Koch K.R. | |
dc.date.accessioned | 2011-05-15T15:59:07Z | |
dc.date.available | 2011-05-15T15:59:07Z | |
dc.date.issued | 2003 | |
dc.description.abstract | A series of new, relatively hydrophilic, N,N-dialkyl-N′-(2,2- dimethylpropyl)thioureas (HLn) (n = 1, N,N-dimethyl-; n = 2, N-pyrrolidyl-; n = 3, N-piperidyl-) and their corresponding cis-[M(L n-S,O)2] [for M = Pt(II), Pd(II); n = 1-3] and fac-[Rh(Ln-S,O)3] (n = 2, 3) complexes have been prepared and characterised. The crystal and molecular structures of fac-tris(N- pyrrolidyl-N′-(2,2-dimethylpropyl)thioureato)rhodium(III) and cis-bis(N-piperidyl-N′-(2,2-dimethylpropyl)-thioureato)platinum(II) are reported, as representative examples. The favourable physiochemical properties and ready formation of stable mono-isomeric cis-[Pt(Ln-S,O) 2] and cis-[Pd(Ln-S,O)2] complexes with these ligands makes these compounds suitable for the reversed-phase high performance liquid chromatography (RP-HPLC) determination of traces of these metal ions in hydrochloric acid, following in situ complex formation in a homogeneous acetonitrile-hydrochloric acid phase and subsequent salt (NaCl) induced phase separation. A study of the effect of ligand structure on the separation behaviour of cis-[M(Ln-S,O)2] of Pd(n) and Pt(II) complexes has been undertaken, showing that the nature of the ligand has a significant influence on the separation characteristics of these complexes. © The Royal Society of Chemistry 2003. | |
dc.description.version | Article | |
dc.identifier.citation | Dalton Transactions | |
dc.identifier.citation | 10 | |
dc.identifier.issn | 14779226 | |
dc.identifier.other | 10.1039/b211885h | |
dc.identifier.uri | http://hdl.handle.net/10019.1/11014 | |
dc.subject | Acetonitrile | |
dc.subject | Crystal structure | |
dc.subject | High performance liquid chromatography | |
dc.subject | Hydrophilicity | |
dc.subject | Isomers | |
dc.subject | Molecular structure | |
dc.subject | Phase separation | |
dc.subject | Ligand structure | |
dc.subject | Metal ions | |
dc.subject | Separation characteristics | |
dc.subject | Organometallics | |
dc.title | Tailoring hydrophilic N,N-dialkyl-N′-acylthioureas suitable for Pt(II), Pd(II) and Rh(III) chloride pre-concentration from acid aqueous solutions, and their complex separation by reversed-phase HPLC | |
dc.type | Article |