Publications

Wolfgang Kaim, Wolfgang Bruns, Stephan Kohlmann, and Michael. Krejcik. Metal-metal interaction in ligand-bridged dimolybdenum(0,0) and -(I,0) complexes with very small frontier orbital gaps: Electrochemistry and spectroscopic properties of three neighboring oxidation states. Inorganica Chimica Acta, (229)1-2:143--151, 1995. [PUMA: bipyrimidine bispyridyl bispyridylpyrazine bispyridylpyrazine;ESR bispyridylpyrazine;molybdenum carbonyl complex;electrochem complex;pyrazine complex;spectroelectrochem comproportionation diimine dinuclear molybdenum]

Monika Sieger, Conny Vogler, Axel Klein, Axel Knoedler, Matthias Wanner, Jan Fiedler, Stanislav Zalis, Theo L. Snoeck, and Wolfgang. Kaim. Geometrical and Electronic Structures of Dinuclear Complex Ions (μ-bpym)Cu(EAr3)222+ with Intramolecular \dqOrganic Sandwich\dq Formation (E = P or As; Ar = Aryl; bpym = 2,2'-Bipyrimidine). Inorganic Chemistry, (44)13:4637--4643, 2005. [PUMA: arsine bipyrimidine complex complex;electrochem complex;luminescence copper dinuclear phosphine prepn redn structure structure;crystal]

Sylvia Ernst, and Wolfgang. Kaim. On charge transfer-assisted polynucleation reactions. A trinuclear carbonyl-tungsten complex of ambident 4,4'-bipyrimidine. Inorganica Chimica Acta, (144)2:223--226, 1988. [PUMA: bipyrimidine carbonyl electrochem electronic transition trinuclear trinuclear;redox trinuclear;tungsten tungsten]

Frank Baumann, Wolfgang Kaim, Monica Garcia Posse, and Nestor E. Katz. Spectroelectrochemistry of the Multistep Redox System (μ-bpym)Ru(NH3)42n+, n = 2-6, in a Nonaqueous Medium. Inorganic Chemistry, (37)4:658--660, 1998. [PUMA: ESR ammine ammine;oxidn bipyrimidine dinuclear;redn dinuclear;spectroelectrochem electrochem electrogenerated multistep redox ruthenium]

Anders Gabrielsson, Piet van Leeuwen, and Wolfgang. Kaim. Acidic iridium hydrides: Implications for aerobic and Oppenauer oxidation of alcohols. Chemical Communications (Cambridge, United Kingdom), 47:4926--4927, 2006. [PUMA: acidic aerobic alc aliph bipyridine bipyrimidine catalyst catalyst;iridium catalytic complex cycle hydride intermediate iridium mechanism oxidn oxidn;alc]

Conny Vogler, and Wolfgang. Kaim. Electronic structure of a heterotetranuclear copper(I)2-iron(II)2 complex bridged by p-accepting 2,2'-bipyrimidine. Close-lying but orthogonal frontier orbitals. Journal of Organometallic Chemistry, (398)3:293--298, 1990. [PUMA: MO bipyrimidine complex complex;ESR complex;frontier complex;iron configuration copper ferrocene iron tetranuclear tetranuclear;electron]

Wolfgang. Kaim. Mono- and binuclear tri- and tetracarbonyl complexes of chromium(0), molybdenum(0), and tungsten(0) with the 2,2'-bipyrimidine radical anion. Inorganic Chemistry, (23)21:3365--3368, 1984. [PUMA: Group VIB anion;molybdenum bipyrimidine carbonyl carbonyl;ESR radical substitution tributylphosphine]

Sylvia Ernst, and Wolfgang. Kaim. Ambidentate ligand with high p-acceptor capacity: D6-metal complexes of 4,4'-bipyrimidine. Angewandte Chemie, (97)5:431--433, 1985. [PUMA: Group VIB bipyridine bipyrimidine bipyrimidine;bipyrimidine bipyrimidine;chromium bipyrimidine;tungsten carbonyl carbonyl;molybdenum carbonyl;redox electrochem metal ruthenium ruthenium;carbonyl transition]

Axel Klein, Wolfgang Kaim, Fridmann M. Hornung, Jan Fiedler, and Stanislav. Zalis. Electronic and molecular structure of 2,2'-bipyrimidine-bridged bis(organoplatinum) complexes in various oxidation states. Radical-bridged diplatinum species and the absence of a Pt(III)/Pt(II) mixed-valent intermediate. Inorganica Chimica Acta, (264)1-2:269--278, 1997. [PUMA: bipyrimidine bridged crystal dinuclear;electrochem dinuclear;electronic diplatinum;DFT mol organoplatinum oxidn platinum structure]

Frank Baumann, Wolfgang Kaim, Gert Denninger, Hans-Juergen Kuemmerer, and Jan. Fiedler. Widely Separated Reduction Processes of abpy-Coupled Areneosmium(II) Reaction Centers (abpy = 2,2'-Azobispyridine): Stabilization of the Radical Intermediate and of the Os0OsII State. Organometallics, (24)8:1966--1973, 2005. [PUMA: EPR arene azobispyridine binuclear bipyrimidine bridged cation complex complex;osmium diosmium mixed osmium potential;radical redox spectra valence]

Heiko Hartmann, Sascha Berger, Rainer Winter, Jan Fiedler, and Wolfgang. Kaim. Reversible and Site-Specific Reduction of the Ligand Sides in a Molecular Rectangle with up to Eight Electrons. Inorganic Chemistry, (39)21:4977--4980, 2000. [PUMA: bipyridine bipyrimidine complex electroredn mechanism mol rectangle rhenium]

Paul S. Braterman, Jae Inh Song, Stephan Kohlmann, Conny Vogler, and Wolfgang. Kaim. Spectroelectrochemistry of aromatic ligands and their derivatives. III. Binuclear transition metal complexes of copper(I), molybdenum(0), and rhenium(I) with 2,2'-bipyrimidine. Journal of Organometallic Chemistry, (411)1-2:207--213, 1991. [PUMA: binuclear bipyrimidine carbonyl complex copper electronic electroredn;transition metal potential redn rhenium spectrum spectrum;molybdenum visible]

Wolfgang Kaim, and Stephan. Kohlmann. Four bridging bis chelate ligands with very low lying p* orbitals. MO perturbation calculations, electrochemistry, and spectroscopy of mononuclear and binuclear group 6 metal tetracarbonyl complexes. Inorganic Chemistry, (26)1:68--77, 1987. [PUMA: Group MO VIB azobipyridine bipyrimidine bischelant carbonyl;Group carbonyl;MO carbonyl;electronic carbonyl;energy electrochem electrochem;bipyrimidine electrochem;electrochem electrochem;pyridyltetrazine level pyridylpyrazine pyridyltetrazine;pyridylpyrazine transition]

Walter Matheis, and Wolfgang. Kaim. Electronic structure of heterodinuclear complexes (bpy)2RuII(m-bpym)MLn; bpy = 2,2'-bipyridine; bpym = 2,2'-bipyrimidine; MLn = Cu(PPh3)2, Mo(CO)4, Re(CO)3Cl. Inorganica Chimica Acta, (181)1:15--21, 1991. [PUMA: ESR bipyridine bipyrimidine complex complex;copper complex;molybdenum complex;redox complex;ruthenium electrochem heterobinuclear heterobinuclear;rhenium heterodinuclear metal ruthenium transition]

Wolfgang Kaim, and Walter. Matheis. Coupling between polypyridineruthenium(II) and methylviologen moieties in p-conjugated hybrid systems. Chemische Berichte, (123)6:1323--1325, 1990. [PUMA: bipyrazine bipyrazine;ruthenium bipyridine bipyrimidine complex cyclic quaternized ruthenium voltammetry]

Manuela Schwach, H.-D. Hausen, and Wolfgang. Kaim. Pulled molecular strings and stacked molecular decks: Chelate-ring formation vs. metal-metal bridging in dicopper(I) complexes of 2,2'-bipyrimidine with diphosphine ligands of variable polymethylene chain length. Chemistry - A European Journal, (2)4:446--451, 1996. [PUMA: assembly;crystal bipyrimidine chain copper dinuclear dinuclear;ESR dinuclear;copper dinuclear;deck dinuclear;electrochem dinuclear;string diphosphine length mol redn reduced self structure]

Cueneyt Kavakli, Brigitte Schwederski, Jan Fiedler, Dietrich Gudat, and Wolfgang. Kaim. Ligand-based Reduction in a Molecular Rectangle with Four Organoplatinum(IV) Vertices. Zeitschrift fuer Anorganische und Allgemeine Chemie, (636)1:114--120, 2010. [PUMA: ESR based bipyridine bipyrimidine complex ligand platinum prepn rectangle redn;electrochem redox]

Priti Singh, Jan Fiedler, Stanislav Zalis, Carole Duboc, Mark Niemeyer, Falk Lissner, Thomas Schleid, and Wolfgang. Kaim. Spectroelectrochemistry and DFT Analysis of a New RuNOn Redox System with Multifrequency EPR Suggesting Conformational Isomerism in the RuNO7 State. Inorganic Chemistry, (46)22:9254--9261, 2007. [PUMA: DFT EPR bipyrimidine complex electrochem isomerism multifrequency nitro nitrosyl prepn redn;conformational redox ruthenium system system;spectroelectrochem terpyridine]

Markus Gloeckle, Wolfgang Kaim, Nestor E. Katz, Monica Garcia Posse, Edgardo H. Cutin, and Jan. Fiedler. The FeIII/FeII vs. Fe22.5 Formulation in Mixed-Valent Species (NC)4Fe(BL)Fe(CN)43-, BL = 2,2'-Bipyrimidine and 3,6-Bis(2-pyridyl)-1,2,4,5-tetrazine. Distance and Size Do Not Always Matter. Inorganic Chemistry, (38)14:3270--3274, 1999. [PUMA: bipyrimidine complex complex;iron complex;redn complex;redox complex;spectroelectrochem cyano dinuclear electrochem iron potential prepn;oxidn spectro tetrazinebispyridine]

Paul S. Braterman, Jae Inh Song, Stephan Kohlmann, Conny Vogler, and Wolfgang. Kaim. Spectroelectrochemistry of aromatic ligands and their derivatives. III. Binuclear transition metal complexes of copper(I), molybdenum(0), and rhenium(I) with 2,2'-bipyrimidine. Erratum to document cited in CA116(2):12392f. Journal of Organometallic Chemistry, (424)1:C2, 1992. [PUMA: Erratum Erratum;Erratum bipyrimidine carbonyl complex copper electronic electroredn metal potential;molybdenum redn rhenium spectrum transition visible]