Platinum(IV) complexes with α,ω-bis(pyrazol-1-yl) alkanediyl and diethyl ether/thioether ligands. Crystal structures of dibromodimethyl[1,2-bis(pyrazol-1-yl)ethane]platinum(IV) and trimethyl-bis[2-(pyrazol-1-yl)ethyl]etherplatinum(IV) tetrafluoroborate
作者:Mairéad E. Kelly、Santiago Gómez-Ruiz、Jürgen Schmidt、Christoph Wagner、Harry Schmidt
DOI:10.1016/j.poly.2008.07.003
日期:2008.9
Reactions of the flexible alpha,omega-bis(pyrazol-1-yl) compounds 1,2-bis(pyrazol-1-yl)ethane (L1), 1,8-bis(pyrazol-1-yl)-n-octane (L2), bis[2-(pyrazol-1-yl)ethyl]ether (L3) and bis[2-(pyrazol-1-yl)ethyl]thioether(L4) with precursor organometallic platinum complexes ([(PtBr2Me2)(n)], [(PtIMe3)(4)] and [(PtMe2(cod)]/I-2) are described herein. The spectroscopic characterization of the platinum(IV) products of these reactions [PtBr2Me2pz(CH2)(m)pz}], m = 2 (1) or 8 (2), [PtI2Me2pz(CH2)(2)pz}] (3), [PtMe3(pzCH(2)CH(2)OCH(2)CH(2)pz)]-[BF4] (4) and [PtMe3(pzCH(2)CH(2)SCH(2)CH(2)pz)][CF3SO3] (5), where 'pz' is pyrazol-1-yl, is discussed. Furthermore, solid state structures of 1, a complex with a seven-membered chelate ring, and 4, a complex bearing the neutral kappa N-2,N ',kappa O ligand bis[2-(pyrazol-1-yl)ethyl]ether (L3) are reported. (C) 2008 Elsevier Ltd. All rights reserved.