caa a22 4500 469059060 CHVBK 20180323132851.0 cr unu---uuuuu 170328e19920101xx s 000 0 eng 10.1007/BF01053869 doi (NATIONALLICENCE)springer-10.1007/BF01053869 Cation and anion coordination chemistry of palladium(II) with polyazacycloalkanes. Thermodynamic and structural studies [Elektronische Daten] [A. Bencini, A. Bianchi, M. Micheloni, P. Paoletti, P. Dapporto, P. Paoli, E. Garcia-España] The interaction of PdCl 4 2− with the macrocyclic ligands of the series [3k]aneN k has been studied both in solution and in the solid state. [18]aneN6 and [21]aneN7 form both mono- and binuclear Pd2+ complexes, whose stability constants have been determined in 0.5 mol dm−3 NaCl at 298.15 K. [21]aneN7 also forms, in solution, a trinuclear species in which an amino group deprotonates to bridge two Pd2+ ions, as observed in the solid state. The crystal structure of the complexes [Pd2([18]aneN6)Cl2][ClO4]2 and [Pd3([21]aneN7)Cl3][ClO4]2 · H2O have been solved by single crystal X-ray analysis. C12H30N6Cl4O8Pd2: monoclinic, space group C2/m,a = 10.876(2),b = 18.117(2),c = 7.043(2) Å,β = 113.78(2)°,V = 1270(12) Å3,Z = 2,D calc = 1.92 g cm-3,μ = 16.94 cm−1.R = 0.063,R w = 0.059. C14H36N7CI5O9Pd3: orthorhombic, space groupPcab,a = 13.125(7),b = 13.213(3),c = 33.570(5) Å,V = 5822(3) Å3,Z = 8,D calc = 2.15 g cm−3,μ = 21.20 cm−1.R = 0.074,R w = 0.061. In very acidic solutions the polyammonium cations (H k [3k]aneN k ) k+ interact with PdCl 4 2− forming second sphere coordinated species. These reactions have been followed by a microcalorimetric technique in 2 mol dm−3 HCl solutions. The slowness of the reactions of (H10[30]aneN10)10+ with PdCl 4 2− has been interpreted in terms of inclusion of the anion into the receptor's cavity as shown by the crystal structure of [(PdCl4)(H10[30]aneN10)][PdCl4]2Cl4: triclinic, space group PT,a = 7.760(3),b = 11.448(4),c = 13.399(11) Å, α = 96.31(8)°,β = 104.50(6)°,γ = 92.30(3)°,Z = 1.R = 0.046 andR w = 0.039. Kluwer Academic Publishers, 1992 Macrocyclic chemistry of Pd2+ nationallicence deprotonation of secondary amino group nationallicence supramolecular chemistry nationallicence anion coordination chemistry nationallicence anion inclusion nationallicence crystal structures nationallicence Bencini A. Department of Chemistry, University of Florence, Via Maragliano 75, I-50144, Florence, Italy aut Bianchi A. Department of Chemistry, University of Florence, Via Maragliano 75, I-50144, Florence, Italy aut Micheloni M. Department of Chemistry, University of Florence, Via Maragliano 75, I-50144, Florence, Italy aut Paoletti P. Department of Chemistry, University of Florence, Via Maragliano 75, I-50144, Florence, Italy aut Dapporto P. Department of Energetics, University of Florence, Italy aut Paoli P. Department of Energetics, University of Florence, Italy aut Garcia-España E. Department of Inorganic Chemistry, University of Valencia, Spain aut Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 12/1-4(1992-01-01), 291-304 0923-0750 12:1-4<291 1992 12 10847 https://doi.org/10.1007/BF01053869 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01053869 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bencini A. Department of Chemistry, University of Florence, Via Maragliano 75, I-50144, Florence, Italy aut NATIONALLICENCE 700 1- Bianchi A. Department of Chemistry, University of Florence, Via Maragliano 75, I-50144, Florence, Italy aut NATIONALLICENCE 700 1- Micheloni M. Department of Chemistry, University of Florence, Via Maragliano 75, I-50144, Florence, Italy aut NATIONALLICENCE 700 1- Paoletti P. Department of Chemistry, University of Florence, Via Maragliano 75, I-50144, Florence, Italy aut NATIONALLICENCE 700 1- Dapporto P. Department of Energetics, University of Florence, Italy aut NATIONALLICENCE 700 1- Paoli P. Department of Energetics, University of Florence, Italy aut NATIONALLICENCE 700 1- Garcia-España E. Department of Inorganic Chemistry, University of Valencia, Spain aut NATIONALLICENCE 773 0- Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 12/1-4(1992-01-01), 291-304 0923-0750 12:1-4<291 1992 12 10847 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer