| 20354611 |
Castineiras A, Pedrido R: A thiosemicarbazone ligand functionalized by a phosphine group: Reactivity toward coinage metal ions. Dalton Trans. 2010 Apr 21;39(15):3572-84. Epub 2010 Mar 11.
The reactivity of the phosphino-thiosemicarbazone ligand 2-(2-(diphenylphosphino) benzylidene)-N-ethylthiosemicarbazone (HLPEt) toward M (i) halides (M = Cu, Ag, Au) was studied. The complexes obtained, with formulae [Cu (HLPEt)(2)] Br (), [Cu (HLPEt)(2)] I.2H (2) O (), [Ag (HLPEt)(LPEt)].3H (2) O (), [Au (2)(HLPEt)(2) Cl] Cl.CH (3) OH () were satisfactorily characterized by elemental analysis, IR, ESI and (1) H/(31) P NMR. Moreover, we have obtained the crystal structure of the ligand HLPEt and its sulfide oxidized form HLP (S) Et, which represents a new case of desulfurization process in thiosemicarbazone ligands. In addition, we present the crystal structure of the complexes + H (2) O + 3MeOH and [Au (2)(HLPEt)(4) Cl] Cl.3CH (3) OH (), together with their interesting crystal packing. The complex is an interesting case of a pseudo-chloronium gold (i) complex. The ligand HLPEt and the complexes and display intense luminescence at room temperature. |
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