Johannes Weiss

Overview

Best Publications

• Synthesis, crystal structures, reactivity, and magnetochemistry of a series of binuclear complexes of manganese(II), -(III), and -(IV) of biological relevance. The crystal structure of [L'MnIV(.mu.-O)3MnIVL'](PF6)2.H2O containing an unprecedented short Mn.cntdot..cntdot..cntdot.Mn distance of 2.296 .ANG.

  Karl. Wieghardt;Ursula. Bossek;Bernhard. Nuber;Johannes. Weiss

  648
  Citations

• Synthesis and characterization of (.mu.-hydroxo)bis(.mu.-acetato)diiron(II) and (.mu.-oxo)bis(.mu.-acetato)diiron(III) 1,4,7-trimethyl-1,4,7-triazacyclononane complexes as models for binuclear iron centers in biology; properties of the mixed valence diiron(II,III) species

  Judith Ann R. Hartman;R. Lynn Rardin;Phalguni Chaudhuri;Klaus Pohl

  262
  Citations

• Moderately strong intramolecular magnetic exchange interaction between the copper(II) ions separated by 11.25 .ANG. in [L2Cu2(OH2)2(.eta.-terephthalato)](ClO4)2 (L = 1,4,7-trimethyl-1,4,7-triazacyclononane)

  Phalguni. Chaudhuri;Karen. Oder;Karl. Wieghardt;Stefan. Gehring

  220
  Citations

• [L2Mn2(.mu.-O)2(.mu.-O2)](ClO4)2. The first binuclear (.mu.-peroxo)dimanganese(IV) complex (L = 1,4,7-trimethyl-1,4,7-triazacyclononane). A model for the S4 .fwdarw. S0 transformation in the oxygen-evolving complex in photosynthesis

  Ursula Bossek;Thomas Weyhermueller;Karl Wieghardt;Bernhard Nuber

  216
  Citations

• 1,4,7-Triazacyclononane-N,N',N''-triacetate (TCTA), a new hexadentate ligand for divalent and trivalent metal ions. Crystal structures of [CrIII(TCTA)], [FeIII(TCTA)], and Na[CuII(TCTA)].bul.2NaBr.bul.8H2O

  Karl. Wieghardt;Ursula. Bossek;Phalguni. Chaudhuri;Willy. Herrmann

  200
  Citations

• Mono- and dinuclear zinc(II) complexes of biological relevance. Crystal structures of [L2Zn](PF6)2, [L'Zn(O2CPh)2(H2O)], [L'2Zn2(.mu.-OH)2](ClO4)2, and [L'2Zn2(.mu.-OH)(.mu.-CH3CO2)2](ClO4).cntdot.H2O (L = 1,4,7-triazacyclononane, L' = 1,4,7-trimethyl-1,4,7-triazacyclononane)

  Phalguni Chaudhuri;Claudia Stockheim;Karl Wieghardt;Werner Deck

  198
  Citations

• Syntheses, redox behavior, and magnetic and spectroscopic properties of copper(II)copper(II)copper(II), copper(II)nickel(II)copper(II), and copper(II)palladium(II)copper(II) species. Crystal structure of [L2Cu2Cu(dmg)2Br]ClO4.cntdot.CH3OH (L = 1,4,7-trimethyl-1,4,7-triazacyclononane; dmg = dimethylglyoximato(2-))

  Phalguni. Chaudhuri;Manuela. Winter;Beatriz P. C. Della Vedova;Eckhard. Bill

  185
  Citations

• Assembly and structural characterization of binuclear µ-oxo-di-µ-acetato bridged complexes of manganese(III). Analogues of the di-iron(III) centre in hemerythrin

  Karl Wieghardt;Ursula Bossek;Dirk Ventur;Johannes Weiss

  162
  Citations

• New triply hydroxo-bridged complexes of chromium(III), cobalt(III), and rhodium(III): crystal structure of tris(.mu.-hydroxo)bis[(1,4,7-trimethyl-1,4,7-triazacyclononane)chromium(III)] triiodide trihydrate

  Karl. Wieghardt;Phalguni. Chaudhuri;Bernhard. Nuber;Johannes. Weiss

  157
  Citations

• Preparation and crystal structure of bis(1,4,7-trithiacyclononane)iron(II) bis(hexafluorophosphate) containing an octahedral, low-spin FeIIS6 core. Electrochemistry of [M([9]aneS3)2]2+ complexes (M=Fe, Co, Ni)

  Karl Weighardt;Heinz Josef Kueppers;Johannes Weiss

  150
  Citations

• (.mu.-Hydroxo)bis(.mu.-carboxylato)diruthenium and (.mu.-oxo)bis(.mu.-carboxylato)diruthenium Complexes Containing Weatk Intramolecular Ru.cntdot..cntdot..cntdot.Ru interactions

  Peter Neubold;Karl Wieghardt;Bernhard Nuber;Johannes Weiss

  145
  Citations

• Neue μ-Hydroxo-Übergangsmetallkomplexe, I. Darstellung und Struktur des trans-Diaqua-di-μ-hydroxo-bis[(1,4,7-triazacyclononan)cobalt(III)]-Kations; Kinetik und Mechanismus seiner Bildung

  Karl Wieghardt;Wilfried Schmidt;Bernhard Nuber;Johannes Weiss

  136
  Citations

• Magnetic exchange interactions in some novel .mu.-azido-bridged copper(II) dimers. Crystal structures of [L2Cu2(.mu.-N3)(N3)2](ClO4).cntdot.H2O, LCu(N3)2, [L2Cu2(.mu.-N3)2(ClO4)2], and L'Cu(N3)2 (L = N,N',N"-trimethyl-1,4,7-triazacyclononane and L' = 1,4,7-triazacyclononane)

  Phalguni Chaudhuri;Karen Oder;Karl Wieghardt;Bernhard Nuber

  135
  Citations

• Syntheses, electrochemistry, and spectroscopic and magnetic properties of new mononuclear and binuclear complexes of vanadium(III), -(IV, and -(V) containing the tridentate macrocycle 1,4,7-trimethyl-1,4,7-triazacyclononane (L). Crystal structures of [L2V2(acac)2(.mu.-O)]I2.2H2O, [L2V2O4(.mu.-O)].14H2O, and [L2V2O2(OH)2(.mu.-O)](ClO4)2

  Petra Knopp;Karl Wieghardt;Bernhard Nuber;Johannes Weiss

  135
  Citations

• Syntheses, properties, and electrochemistry of transition-metal complexes of the macrocycle 1,4,7-tris(2-pyridylmethyl)-1,4,7-triazacyclononane (L). Crystal structures of [NiL](ClO4)2, [MnL](ClO4)2, and [PdL](PF6)2 containing a distorted-square-base-pyramidal PdIIN5 core

  Karl Wieghardt;Ernst Schoeffmann;Bernhard Nuber;Johannes Weiss

  125
  Citations

• Electron-transfer barriers in cobalt(III) and cobalt(II) bis complexes of 1,4,7-triazacyclononane (tacn) and 1,4,7-trithiacyclononane (ttcn). Crystal structures of [CoII(tacn)2]I2•2H2O and of [CoIII(ttcn)2](ClO4)3

  Heinz Josef Kueppers;Ademir Neves;Christa Pomp;Dirk Ventur

  119
  Citations

• Synthesis and coordination chemistry of the hexadentate ligands 1,4,7-tris(2-hydroxybenzyl)-1,4,7-triazacyclononane (H3L1) and 1,4,7-tris(3-tert-butyl-2-hydroxybenzyl)-1,4,7-triazacyclononane (H3L2). Crystal structures of [HL1CuII] and [L2FeIII]acacH

  Ulf Auerbach;Uwe Eckert;Karl Wieghardt;Bernhard Nuber

  117
  Citations

• Dinuclear Manganese(II,III,IV) Model Complexes for the Active Center of the Metalloprotein Photosystem II: Synthesis, Magnetism, and Crystal Structure of [LMnIII(μ‐O)(μ‐CH3CO2)2MnIVL][ClO4]3 (L = N,N′N″‐Trimethyl‐1,4,7‐triazacyclononane)

  Karl Wieghardt;Ursula Bossek;Jacques Bonvoisin;P. Beauvillain

  116
  Citations

• [L2Fe 2II(μ‐OH)(μ‐CH3CO2)2](ClO4)·H2O, a Model Compound for the Diiron Centers in Deoxyhemerythrin

  Phalguni Chaudhury;Karl Wieghardt;Bernhard Nuber;Johannes Weiss

  112
  Citations

• Bioinorganic model complexes for the active site in manganese containing catalases. The crystal structures of [L2MnII2(μ-OH)(μ-O2CCH3)2] (PF6)·CH3OH and [L′2MnIII2(μ-O)(μ-O2CCH3)2] (I3)I·H2O

  Ursula Bossek;Karl Wieghardt;Bernhard Nuber;Johannes Weiss

  105
  Citations

• Synthese mittlerer und großer Ringe, XII. Bootförmige Benzolderivate – Synthese, Struktur und Chemie von 8,9‐disubstituierten [6]Paracyclophanen

  Jörg Liebe;Christian Wolff;Claus Krieger;Johannes Weiss

  105
  Citations