摘要:
The reactivity of the cyclic primary aliphatic amines cyclopropyl-, cyclopentyl-and cyclohexylamine with cis- and trans-[PtCl2(NCMe)(2)], under the same experimental conditions, is compared. Whereas cis-[PtCl2(NCMe)(2)] yields the neutral diamidine compounds, the reactions with trans-[PtCl2(NCMe)(2)] take place either with addition or substitution processes yielding the neutral diamidine complexes trans-[PtCl2(Amidine)(2)], the monocationic trans-[PtCl(Amine)(Amidine)(2)]Cl and the dicationic trans-[Pt(Amine)(2)(Amidine)(2)]Cl-2 salts. An NMR and ESI study indicate that the main species formed is the monocationic trans-[PtCl(Amine)(Amidine)(2)] Cl complex.The X-ray structure of trans-[PtCl2{N(H)=C(CH3)NHCHCH2CH2}(2)] is reported and its supramolecular arrangement is described. (C) 2009 Elsevier B. V. All rights reserved.