Synthesis and characterization of new Pt(II) and Pt(IV) orthometallated complexes incorporating 1-arylazo-2-ethyl sulfanyl benzene
摘要:
The new ligands 1-arylazo-2-ethyl sulfanyl benzene, LH (1) [LH is 2-(RC6H4-N=N)C6H4SEt; R =p-H (for (LH)-H-1), p-Me (for (LH)-H-2) and p-Cl (for (LH)-H-3), H of LH represents the dissociable proton upon orthometallation] and their orthoplatinated complexes of the type Pt-II(L)Cl have been synthesized by the reaction of LH with K2PtCl4 where [L](-) ligands bind the metal in a tridentate (C, N, S) fashion. On the other hand, new platinum (IV) cyclometallates, Pt-IV(L)I-3, were obtained directly on treating K2PtI4 with LH. The complexes and ligands were characterized from spectroscopic data. The X-ray structure of Pt(L)I-3 authenticated its formation. (C) 2006 Elsevier Ltd. All rights reserved.