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Einrichtungen >> Naturwissenschaftliche Fakultät (Nat) >> Department Chemie und Pharmazie >>

Lehrstuhl für Anorganische und Metallorganische Chemie (Prof. Dr. Harder)

	2013 GeCp^big^_2_[Cp^big^=C_5_(DH_2_C_6_H_4_iPr)_5_]: A Flexible Sandwich Molecule Hydride Reacivity of Ni^II^-X-Ni^II^ Entities: Mixed-Valent Hydrido Complexes and Reversible Metal Reduction
	2012 Calcium Amidoborane Ammine Complexes: Thermal Decomposition of Model Systems Calcium-mediated hydroboration of alkenes: "Trojan horse" or "true" catalysis? High-Magnesium Calcite Mesocrystals: A Coordination Chemistry Approach Molecular early main group metal hydrides: synthetic challenge, structures and applications Selective Conversion of Polyenes to Monoenes by RuCl_3_-Catalyzed Transfer Hydrogenation: The Case of Cashes Nutshell Liquid
	2011 Coordination of 1,10-Phenanthroline and 2,2'-Bipyridine to Li+ in Different Ionic Liquids. How Innocent Are Ionic Liquids? Solvent, salt and high pressure effects on the rate and equilibrium constants for the formation of tri-n-butylphosphoniumdithiocarboxylate
	2010 Encapsulated host-guest dynamics: Bond rotational barriers as a probe of host interior cavity space Ligand exchange processes on solvated lithium cations. VI. Determination of coordination numbers by ligand substitution and 7Li NMR
	2009 Mechanistic information from volume profiles for water exchange and complex-formation reactions of aquated Ni(II). pH, buffer and medium effects
	2008 Diastereoselective routes to [amino{s (P):h 6-(ansa-phosphinite)benzene}chlororuthenium(II)] PF6 salts: kinetic versus thermodynamic preferences Effect of chelate dynamics on water exchange reactions of paramagnetic aminopolycarboxylate complexes The impact of tripodal chelates on water exchange kinetics and mechanisms: a variable temperature and pressure 17O NMR study to clarify the structure-reactivity relationship in [Fe(II)(L)(H2O2](-) complexes Triggering Water Exchange Mechanisms via Chelate Architecture. Shielding of Transition Metal Centers by Aminopolycarboxylate Spectator Ligands
	2007 Elucidation of the Solution Structure and Water-Exchange Mechanism of Paramagnetic [FeII(edta)(H2O)]2- Ligand exchange processes on solvated lithium cations: complexation by cryptands in acetone as solvent Ligand-exchange processes on solvated lithium cations: DMSO and water/DMSO mixtures
	2006 A Comparative Mechanistic Study of the Reversible Binding of NO to a Water-Soluble Octa-Cationic FeIII Porphyrin Complex Guest Exchange Dynamics in an M4L6 Tetrahedral Host Oxidation of hydroxyurea with oxovanadium(V) ions in acidic aqueous solution
	2005 Aromatic Interactions in Unusual Backbone Nitrogen-Coordinated Zinc Peptide Complexes: A Crystallographic and Spectroscopic Study Kinetic and Mechanistic Studies on the Reaction of Nitric Oxide with a Water-Soluble Octa-anionic Iron(III) Porphyrin Complex Kinetics and Mechanism of the Iron Phthalocyanine Catalyzed Reduction of Nitrite by Dithionite and Sulfoxylate in Aqueous Solution Mechanistic Information on the Reductive Elimination from Cationic Trimethylplatinum(IV) Complexes to Form Carbon-Carbon Bonds Mechanistic studies on the formation of Pt(II) hydroformylation catalysts in imidazolium-based ionic liquids Supramolecular catalysis of sigmatropic rearrangements: Rate acceleration through encapsulation
	2004 A new high-pressure NMR probe designed for a narrow bore magnet system Comparison of thermodesorption and soxhlet extraction for GC/MS analysis of plastic additives Discrimination of diverse (pressure/temperature-dependent/independent) inherent sub-structures in liquid water (D_2_O) from difference vibrational spectroscopy Effect of inhibitors on the catalyzed dehydration of HCO_3_^-^ by copper(II) complexes re-evaluated Electronically and sterically tuned trans labilization controls the substitution behaviour of cobaloximes Evidence for associative ligand exchange processes on solvated lithium cations Further mechanistic information on the reaction between Fe^III^(edta) and hydrogen peroxide. Observation of a second reaction step and importance of pH Highly localized charges control electrostriction. Reaction volumes for the reduction of mononuclear and bridged Ru complexes Kinetic and mechanistic study on the reaction of alkylcobaloximes with azoles Kinetics and mechanism of axial ligand substitution of alkyl cobaloximes by substituted pyridines in different solvents Kinetics and mechanism of water substitution in the low spin Fe(II) complex of 4-octasulfophenylpyrazinoporphyrazine Local dense structural heterogeneities in liquid water from ambient to 300 MPa pressure: Evidence for multiple liquid-liquid transitions Mechanistic elucidation of the substitution behavior of alkyl cobaloximes in water and methanol as solvents Mechanistic information on the copper-catalysed autoxidation of mercaptosuccinic acid in aqueous solution Mechanistic studies on a facile ring-flipping process in planar-chiral ferrocenes under ambient and high pressure and its relevance to symmetric catalysis NO Binding to cobalamin: Influence of the metal oxidation state Role of chelate substituents and cis ó-effects on the rate of ligand substitution at Pt(N-N-N) and Pt(N-N-C) centres Structure and characterization of non-cyclic tetraaza complexes of copper(II) and their reactions with nitric oxide Substitution reactions of [Pt(terpy)X]^2+^ with some biologically relevant ligands. Synthesis and crystal structures of [Pt(terpy)(cyst-S)](ClO_4_)_2_.0.5H_2_O and [Pt(terpy)(guo-N^7^)](ClO_4_)_2_.0.5guo.1.5H_2_O Substrate binding favours enhanced NO binding to P450_cam_ The influence of terpyridine as ð-acceptor ligand on the kinetics and mechanism of the reaction of NO with ruthenium(III) complexes The profound influence of a single metal-carbon bond on the reactivity of bio-relevant cobalt(III) complexes The role of positively charged meso-substituents on the kinetics of the reductive nitrosylation of iron(III)-porphyrines. The catalytic role of nitrite
	2003 A compact high pressure unit for UV-VIS-NIR spectroscopic measurements at pressures up to 400 MPa Analysis of eco-relevant elements and noble metals in printed wiring boards using AAS, ICP-AES and EDXRF Coenzyme B_12_ model studies. Kinetics of axial ligation of alkyl cobalt complexes containing a tridentate amino-oximate ligand Complex-formation reactions and stability constants for mixed-ligand complexes of diaqua(2-picolylamine)palladium(II) with some bio-relevant ligands Cyclometallated analogues of platinum terpyridine complexes: Kinetic study of the strong ó-donor cis and trans effects of carbon in the presence of a ð-acceptor ligand backbone Electronic tuning of the lability of Pt(II) complexes through ð-acceptor effects. Correlations between thermodynamic, kinetic and theoretical parameters Electrostatic complexation and photo-induced electron transfer between Zn-cytochrome c and polyanionic fullerene dendrimers Evaluation of activation volumes for the conversion of peroxynitrous to nitric acid Extraction of brominated flame retardants from polymeric waste material using different solvents and supercritical carbon dioxide Interaction of [Ru^III^(edta)H_2_O]^-^ with amino acids in aqueous solution. Equilibrium, kinetic and protease inhibition studies Kinetic and thermodynamic studies on the cyanation reactions and base-on/base-off equilibria of alkyl-13-epicobalamins Kinetics and mechanism of the cobalt phthalocyanine catalyzed reduction of nitrite and nitrate by dithionite in aqueous solution Kinetics and mechanism of the interaction of nitric oxide with pentacyanoferrate(II). Formation and dissociation of [Fe(CN)_5_NO]^3-^ Kinetics of the reduction of cytochrome \|c\| by [Fe^II^(edta)H_2_O]^2-^. Outer-sphere versus inner-sphere electron transfer mechanisms Magic Show 2003 Mechanistic insight from activation parameters for the reaction between coenzyme B_12_ and cyanide: Further evidence that heterolytic Co-C bond cleavage is solvent-assisted Mechanistic insight gained into the ligand substitution reactions of (triphenylphosphine)bis(o-benzosemiquinonediiminato)cobalt(III). Kinetic, solvent and volume profile studies Mechanistic studies on the interaction of reduced cobalamin (vitamin B_12r_) with nitroprusside Molecular orbital and DFT studies on water exchange mechanisms of metal ions Outer-sphere electron-transfer between horse heart cytochrome c and anionic Cu(II/I) complexes. Evidence for precursor formation and coordination sphere reorganization for electron transfer Positive activation volume for a cytochrome c electrode process: Evidence for a “protein friction” mechanism from high pressure studies Self-exchange reactions of metallocenes revisited: Insights from the decamethylferricinium-decamethylferrocene reaction at variable pressure Structures of carbonato and bicarbonato complexes of bis(1,10-phenanthroline)-zinc(II): experiment and theory The reaction between methylcobalamin and cyanide revisited The unusually fast reaction between ruthenium(III)-ammine complexes and NO revisited Thermodynamic and kinetic data for the base-on/base-off equilibration of alkylcobalamins Thermodynamic and kinetic study of the interaction between the Pt(II) centres in [Pt_2_(N,N,N’,N’-tetrakis(2-pyridylmethyl)diamine)(H_2_O)_2_]^4+^. Influence of the bridging ligand
	2002 A detailed mechanistic study of the behaviour of an unusual seven-coordinate iron(III) complex in aqueous solution Activation volume measurement for C-H activation. Evidence for associative benzene substitution at a platinum(II) center Can Aromatic Interactions Control the Coordination Geometry of Zinc Complexes? Structural Evidence and a Possible Mechanism for the Conversion of Trigonal-Bipyramidal to Octahedral Compounds Cation-independent electron transfer between ferricyanide and ferrocyanide ions in aqueous solution Equilibrium, kinetic and leaving group effect studies on ligand substitution reactions of a simple model for coenzyme B_12_ Five-coordinated and adduct formation in Co(III) corrinoids: Dissection ligand substitution into its component parts Kinetics and mechanism of the formation of nirtoprusside from aquapentacyanoferrate(III) and NO. Complex-formation is controlled by outer-sphere electron transfer Kinetics, mechanism and spectroscopy of the reversible binding of nitric oxide to aquated iron(II). An undergraduate text book reaction revisited Low Temperature Stopped-Flow Studies in Inorganic Chemistry Mechanism of water exchange on five-coordinate copper(II) complexes Mechanistic information from pressure acceleration of hydride formation via proton binding to a cobalt(I) macrocycle Mechanistic information on the reversible binding of NO to selected iron(II) chelates from activation parameters Photochemistry of concentrated sulfuric acid in the pressure of SO_2_ and Fe(II), and imlpications for the cloud chemistry of Venus Reactions of methyl violegen and nitrite with triourea dioxide. New opportunities for an old reductant Syntheses and Characterization of Copper(II) Complexes of the New Ligands N-[(2-pyridyl)methyl]-2,2’-dipyridylamine and N-[bis(2-pyridyl)methyl]-2-pyridyl-amine Synthesis, Structures and Redox Properties of Copper Complexes with Chiral and Achiral Amino Acid Derived Ligands The stabilization of dicopper(II) peroxo compounds by bispidine-type ligands Thermodynamics and kinetics of Ru^III^(edta) as efficient scavenger for nitric oxide in aqueous solution To be or not to be NO in coordination chemistry? A mechanistic approach Tuning the Reactivity of Tertiary Carboxamides in Werner Compexes: A Classical Structure-Function-Relationship
	2001 A bowl-shaped and highly inert bis-(my-hydroxo)-platinum(II) dimer A high pressure pulse-radiolysis study of the formation and decomposition of complexes with iron-carbon sigma bonds. A mechanistic comparison for different metal centers Complex formation reactions of Cu(II) and Zn(II) 2,2'-bipyridine and 1,10-phenanthroline complexes with bicarbonate. Identification of different carbonate coordination modes Controlling the lability of square planar Pt(II) complexes through electronic communication between pi-acceptor ligands Copper(I) Complexes, Copper(I)/O_2_ Reactivity and Copper(II) Complex Adducts, with a Series of Tetradentate Tripyridyl-Alkylamine Tripodal Ligands Electron transfer reaction between cytochrome c and trisoxalatocobalt(III) Electrostriction and counter ion effects in an outer-sphere electron transfer reaction. Kinetics of the reduction of hexachloroiridate(IV) by iodide ion Equlibrium and kinetic studies on the reactions of alkylcobalamins with cyanide Inductive Effects in Ruthenium Modified Amino Acids Influence of chelate effects on the water exchange mechanism of polyaminecarboxylate complexes of iron(III) Kinetics and mechanism of the reversible binding of nitric oxide to reduced cobalamin B_12r_ Kinetics and mechanism of water substitution in half-sandwich iridium(III) aqua cations CPIr(A-B)(H_2_O)^2+/+^ in aquous solution (Cp = hapto¯^5^-pentamethylcyclopentadienyl anion; A-B = bidentate N,N or N,O ligand) Ligand effects on the kinetics of the reversible binding of NO to selected iron(II) aminocarboxylate complexes in aqueous solution Mechanistic studies on the metal catalyzed autoxidation of sulfur(IV) oxides Mechanistic studies on the reversible binding of nitric oxide to metmyoglobin Ni(II), Cu(II), and Zn(II) Complexes of a Bifunctional Bis(picoly)amine (bpa) Ligand Derived from Glycine Reactivity of a copper(I) complex with tris(2-benzylaminoethyl)amine as a ligand towards dioxygen Selective Recognition of Copper(II) by a Water Soluble Emitter-Receptor Conjugate Containing a Ruthenium Chromophore, a Lysine Bridge, and a Cyclen Unit Structural and mechanistic information on the reaction of bicarobnate with Cu(II) and Zn(II) complexes of tris(2-aminoethyl)amine. Identification of intermediate and product species Syntheses and Structural Characterization of Dinuclear and Tetranuclear Iron(III)-Complexes with Dinucleating Ligands and their Reactions with Hydrogen Peroxide The First Crystal Structure of a Nickel Cyclopropene Complex The Reativity of N-Coordinated Amides in Metallopeptide Frameworks: Molecular Events in Metal Induced Pathogenic Patzways Thermodynamic and kinetic studies on complex-formation reactions of cobalt(II) tripodal tetraamine complex Thermodynamic and kinetic studies on the reaction between the vitamin B_12_ derivate (N-methylimidazole)cobalamin and N-methylimidazole: Ligand displacement at the alpha axial site of cobalamins by an imidazole type ligand Tuning the reversible binding of NO to iron(II) aminocarboxylate and related complexes in aqueous solution Water exchange controls the complex-formation mechanism of water-soluble iron(III) porphyrins. Conclusive evidence for dissociative water exchange from a high pressure ^17^O NMR study
	2000 Amino Acids as Chiral Building Blocks for Metal Complexes Application of a purge and trap TDS-GC/MS procedure for the determination of emissions from flame retarded polymers Aquacobalamin (Vitamin B_12a_) does not bind NO in aqueous solution. Nitrite impurities account for observed reaction Effects of trifluoromethyl substituents in a tris(pyrazolyl)borate ligand: A structural and spectroscopic study of analogous Pt(IV) trimethyl complexes Functional phosphines. Part X. Homogeneous hydrogenation of ketones and a ,b -unsaturated carbonyl compounds with 2-(diphenylphosphino)anilido complexes of iridium and rhodium as catalysts. Molecular structure of [Rh(PPh3)2(2-Ph2PC6H4NH-k N,k P)] and [Ir(CO)(PPh3)(2-Ph2PC6H4NH-k N,k P)] Identification of flame retardants in polymers using curie point pyrolysis-gas chromatography/mass spectrometry Kinetics and mechanism of the carbonate ion inhibited aqueous ozone decomposition pH Dependent Excited State Properties of Ruthenium Modified Amino Acids Quantification of heavy metals for the recycling of waste plastics from electrotechnical applications Reactivity of Copper(I) Complexes Towards Dioxygen Syntheses, Structures and Properties of Copper(I) and Copper(II) Complexes of the Ligand N,N'-Bis(2'-(dimethylamino)ethyl)-N,N'-dimethylethane-1,2-diamine (Me_6_trien)
	1999 A kinetic study of the redox behaviour of Fe^III^(TPPS) in the presence of peroxomonosulfate, hydrogen peroxide, and sulfite/oxygen. Direct evidence for multiple redox cycling and suggested mechanisms A New Carbonate Bridged Dinuclear Tripodal Zinc Complex Detailed mechanistic information on methane elimination from a methyl(hydrido)-platinum(IV) complex. Relevance for the mechanism of methane activation Intramolecular Ligand Hydroxylation: Mechanistic High Pressure Studies on the Reaction of a Dinuclear Copper(I) Complex with Dioxygen. Kinetics and Mechanism of the Complexation of La3+ and Cu2+ Ions with N-Methylacetohydroxamic Acid and Desferrioxamine B Mechanistic information on the redox cycling of Ni(II/III) complexes in the presence of sulfur oxides and oxygen. Correlation with DNA damage experiments Mechanistic studies on the reductive elimination of methane from methyl(hydrido)platinum(IV) complexes Models for the initial stage of oxidative addition. Synthesis, characterization and mechanistic investigation of eta^1^-I_2_ organometallic "pincer" complexes of the platinum group metals. The x-ray crystal structures of [PtI(C_6_H_3_{CH_2_NMe_2_}_2_-2,6)-(eta^1^-I_2_)],exo-meso-[Pt(eta^1^-I_3_)(eta^1^-I_2_)(C_6_H_3_{CH_2_N(t-Bu)Me}_2_-2,6)] and [PdI(C_6_H_3_-{CH_2_NMe_2_}_2_-2,6)]. (I_2_)_2_ Multistep oxidation kinetics of [Fe^II^(cdta)] [cdta = N,N',N'',N'''-(1,2-cyclohexane-diamine)tetraacetate] with molecular oxygen pH-Dependent Excited State Dynamics of [Ru(bpy)_3_]^2+^-Modified Amino Acids: Effects of an Amide Linkage and Remote Functional Groups Reversible dioxygen binding of a copper (I) complex with tris (2-dimethylaminoethyl) amine (Me_6_tren) as a ligand Structural and functional investigation on diiron complexes: Catalase-like activity and mechanistic studies on the formation of (my-peroxo)diiron(III) adducts Synthese and Structural Characterization of Dinuclear and Tetranuclear Iron(III)-Complexes and their Reactions with Hydrogen Persoxide
	1998 Complex formation of iron(II/III) with [15]aneN_4_ in aqueous solution. Kinetics of the oxidation of Fe^II^([15]aneN_4_) by dioxygen Cooperative oxidation of edta by Ni(III) and dioxygen. A pulse radiolysis study Effect of fumarate on the kinetics and the reaction mechanism of Cu^+^_aq_ with dioxygen High-pressure oxygen-17 NMR study of the dihydroxo-bridged rhodium(III) hydrolytic dimer. Mechanistic evidence for limiting dissociative water exchange pathways Identification of brominated flame retardants in polymeric materials by reversed-phase liquid chromatography with ultraviolet detection Intramolecular Ligand Hydroxylation: Mechanistic Studies on the Reaction of a Copper(I) Schiff Base Complex with Dioxygen Intramolecular Luminescence Quenching in Amino Acid Bridged Ruthenium(II)-Copper(II)-Complexes with Negligible Ground-State Coupling Investigation of the redox interaction between iron(III) 5,10,15,20-tetrakis-(p-sulfonatophenyl)porphyrinate and aminoiminomethanesulfinic acid in aqueous solution Kinetic Analysis of the Reaction of Isoprene with Carbon Dioxide and a Nickel(0) complex Mechanistic elucidation of small molecule - transition metal interactions by kinetic techniques Reactions of Aldehydes with Carbon Dioxide at Nickel(0) Centers. A Detailed Kinetic Analysis Structural and Kinetic Studies on the Formation of Platinum(II) and Palladium(II) Complexes with L-Cysteine-Derived Ligands
	1997 Ethynyl and butadiynyl complexes of iron and ruthenium with terminal main-group-element substituents, Cp*Fe(Ph2PCH(X) CH2PPh2)Cº CY (X = H, PPh2; Y = H, PPh2, P(+)Ph2Me) and Ru(Ph2PCH2PPh2)2(X)Cº CCº CSiMe3 (X = Cl, Cº CCº CSiMe3) Formation of an Association Complex without a Substitution Reaction Occurring between Methylcobalamin and Cyanide Kinetics and mechanism of reduction of tris(acetylacetonato)manganese(III) by HONH(SO_3_)^-^ and HON(SO_3_)_2_^2-^ in aqueous solution Kinetics and mechanism of substitution reactions of cis-[PtMe_2_(dmso)_2_] with pyridine Kinetics of Fe^II^(edta) oxidation by molecular oxygen revisited. New evidence for a multistep mechanism The formation of dithionate during the iron(III)-catalyzed autoxidation of sulfur (IV)-oxides
	1996 Comparative rates of ligand substitution reactions of Pt-C bonded complexes in aqueous solution and the x-ray structure of [Pt{C_6_H_3_(CH_2_NMe_2_)_2_-2,6}(OH_2_)]-[OSO_2_CF_3_] Formation of sulfur and sulfur-nitrogen compounds in the flue gas desulfurization plants and their influence on the oxidation kinetics of sulfite Influence of mixed sulfur-nitrogen-oxides on the redox kinetics of iron ions in aqueous solution Kinetics and mechanism of the reduction of 1,2-diaminocyclohexanetetraacetato-manganese(III) by hydroxylaminemonosulfonate and hydroxylaminedisulfonate Mechanistic studies on the formation and decay of diiron(III) peroxo complexes in the reaction of diiron(II) precursors with dioxygen Tuning the reactivity of platinum(II) complexes through cyclometallation. A reply
	1995 Transition metal catalyzed oxidation of sulfur(IV)-oxides. Atmospheric-relevant processes and mechanisms
	1994 A high-pressure NMR probe head for measurements at 400 MHz
	1989 Fourier transform-electron spin resonance study of spin polarization generated by triplet- and radical-pair mechanisms in a photoinduced electron transfer reaction



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