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Synthesis and characterisation of the amidine complexes trans-[PtCl(NH3){HNC(NH2)R}2]Cl (R = Me, Ph, CH2Ph) derived from addition of NH3 to the coordinated nitriles in trans-[PtCl2(NCR)2] |
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| Authors: | Giovanni Natile Rino A Michelin Silvia Mazzega Sbovata Roberta Seraglia |
| Institution: | a Dipartimento Farmaco-Chimico, Università di Bari, via E. Orabona 4, 70125 Bari, Italy b Dipartimento di Processi Chimici dell’Ingegneria, Facoltà di Ingegneria, Università di Padova, Via Marzolo 9, 35131 Padova, Italy c Istituto di Scienze e Tecnologie Molecolari, Sezione di Padova, Consiglio Nazionale delle Ricerche, Via Marzolo 1, 35131 Padova, Italy |
| Abstract: | The di-nitrile complexes trans-PtCl2(N CR)2] (R = Me, Ph, CH2Ph) react with an excess of gaseous NH3 in CH2Cl2 at −10 °C to form, in high yield, the corresponding di-amidine complexes trans-PtCl(NH3){HN C(NH2)R}2]Cl in which also one chlorine ligand has been displaced by NH3. The 1H NMR spectra in DMSO showed the formation of different species which were characterized through NOESY, TOCSY and 1H/13C heteronuclear correlations as trans-Pt(NH3){HNC(NH2)R}2(DMSO)]Cl2 and trans-PtCl{HNC(NH2)R}2(DMSO)]Cl. |
| Keywords: | Platinum Nitriles Amidines Ammonia Nucleophilic attack |
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