Draw the Lewis structure of both metal compounds described in the article. Include any important hydrogen atoms in your drawing
Palladium(n)/(m) Complexes of Triaza Macrocycles: Synthesis and Single Crystal X-Ray Structures of [PdIll(tacn)2P+ and [Pd"(tacnntaenHjp + (tacn = 1,4,7-triazacyclononane) Alexander J. Blake, Linda M. Gordon, Alan J. Holder, Timothy L Hyde, Gillian Reid, and Martin Schröder* Department of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, Scotland The complex cation [Pd(tacnhl2+ (tacn 1,4,7-triazacyclononane) shows a one-electron oxidation at 4-+0.07 V vs. Fc/Fct (ferrocene/ferrocinium) to afford the stable mononuclear Pdil species [Pd(tacn)z13+, which has a tetragonally-distorted octahedral structure with Pd-N(1) = 2.180(9), Pd-N(4)-2.118(9), Pd-N(7)-2.1 11(9) A. We have been investigating the stereochemical and redox roperties of tridentate macrocyclic ligands with Pdl and HN NH I,1 The stabilisation of Mill species by 1,4.7-trithiacyclo- nonane (tten) in the complexes [M(tten)l (M Pd, Pr23 has prompted us to study the analogous chemistry with the triaza analogue 1,4,7-triazacyclononane (tacn).4 Reaction of K PdCl with two molar equiv. of tacn.3HNO tacn in water in the presence of NaOH affords an orange solution from which the complex [Pd(tacn) PF2t can be isolated by addition of excess of NH,PF. In addition, by controlling the pH of the reaction solution, the protonated complex cation (tacn)(tacnH)]*t can be isolated. Single crystals of Pd(tacn)tacnHOPFNO,).HO were grown from All complexes have been characterised by spectroscopic and analytical methods. ttcn
