Diplatinum(III) [Cl2(μ2-amidinate)4] compound derived from air oxidation of mononuclear cis-[PtII(NH3)2(amidine-κ1)2]2+ complex
摘要:
The dinuclear platinum(III) complex [Pt2Cl2{mu(2)-N(H)C(Et)N(H)}(4)] (2) has been prepared by heating cis-[Pt(NH3)(2){NH=C(NH2)Et}(2)](Cl)(2) (cis-1) under aeration conditions in an EtOH/H2O mixture at 70 degrees C for 2 d and it was characterized by elemental analyses (C, H, N), ESI+-MS, IR, H-1 and C-13 NMR spectroscopies and also by X-ray diffraction. Complex 2 represents the second Pt-III dimer stabilized by the amidinate ligand ever known and it has a lantern-type structure with four amidinate ligands bridging two Pt-III centers with Pt-Pt distance of 2.4809(2) angstrom. (C) 2009 Elsevier B.V. All rights reserved.