Anna Boixassa, J. Pons, X. Solans
Nov 20, 2003
Citations
0
Influential Citations
38
Citations
Journal
Inorganica Chimica Acta
Abstract
The reactions of 1-hydroxymethyl-3,5-dimethylpyrazole (HL 1 ) and 1-(2-hydroxyethyl)-3,5-dimethylpyrazole (HL 2 ) with several platinum starting materials ([PtCl 2 (CH 3 CN) 2 ], cis - and trans -[PtCl 2 (PhCN) 2 ], PtCl 2 and K 2 PtCl 4 ) under different conditions have been examined and compared with those obtained from the reactions with Pd(II). cis and trans Pt(II) adducts are obtained in a different ratio depending on the metallic starting complex. The reaction of HL 1 with any of the Pt(II) complexes differs from that with Pd(II) and also from the equivalent reaction of HL 2 with Pt(II). This reaction implies the rupture of the ligand: the cleavage of the N(pz)C(sp 3 ) bond leads to [PtCl 2 (dmpz) 2 ] (dmpz=3,5-dimethylpyrazole). For comparison, the direct reaction of dmpz with Pt(II) has also been studied. The crystal structure of cis -[PtCl 2 (HL 2 ) 2 ] and trans -[PtCl 2 (dmpz) 2 ] are here reported.