Publications

Markus Glockle, and Wolfgang. Kaim. An exceedingly stable diiron(II,III) complex ion (tz)Fe(CN)525- with comproportionation constants between 108 (in H2O) and 1019 (in CH3CN). Angewandte Chemie, International Edition, (38)20:3072--3074, 1999. [PUMA: bridged comproportionation decacyano diiron iron pentacyano prepn stability;iron stability;tetrazine tetrazine valence valence;mixed valent]

Markus Gloeckle, Wolfgang Kaim, Axel Klein, Emil Roduner, Georg Huebner, Stanislav Zalis, Joris van Slageren, Franz Renz, and Philipp. Guetlich. The Stable Diiron(2.5) Complex Ion (NC)5Fe(m-tz)Fe(CN)55-, tz = 1,2,4,5-Tetrazine, and Its Neighboring Oxidation States. Inorganic Chemistry, (40)10:2256--2262, 2001. [PUMA: complex complex;iron cyano dinuclear electrochem iron prepn;oxidn redn tetrazine]

Biprajit Sarkar, Stephanie Frantz, Wolfgang Kaim, and Carole. Duboc. High-frequency EPR study of reduced diruthenium and dirhenium polypyridine complexes based on the 1,2,4,5-tetrazine radical bridge. Dalton Transactions, 21:3727--3731, 2004. [PUMA: EPR EPR;ruthenium bridge polypyridine prepn radical rhenium tetrazine]

Biprajit Sarkar, Wolfgang Kaim, Axel Klein, Brigitte Schwederski, Jan Fiedler, Carole Duboc-Toia, and Goutam K. Lahiri. What a Difference Ancillary Thienyl Makes: Unexpected Additional Stabilization of the Diruthenium(III,II) but Not the Diosmium(III,II) Mixed-Valent State in Tetrazine Ligand-Bridged Complexes. Inorganic Chemistry, (42)20:6172--6174, 2003. [PUMA: complex osmium pyridyl reaction redox spectroscopy spectroscopy;ruthenium synthesis tetrazine thienyl]

Juergen Poppe, Michael Moscherosch, and Wolfgang. Kaim. An unusually weak intervalence transition in a very stable bis chelate analog of the ruthenium mixed-valent Creutz-Taube ion. UV/visible/near-IR and EPR spectroelectrochemistry of (NH3)4Ru(m-bptz)Ru(NH3)4n+ (bptz = 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine; n = 3 - 5). Inorganic Chemistry, (32)12:2640--2643, 1993. [PUMA: ESR ammine complex complex;UV complex;redox complex;ruthenium electronic factor g potential pyridyl ruthenium spectrum structure tetrazine]

Wolfgang. Kaim. The coordination chemistry of 1,2,4,5-tetrazines. Coordination Chemistry Reviews, (230)1-2:127--139, 2002. [PUMA: complex metal review tetrazine transition]

Cueneyt Kavakli, Anders Gabrielsson, Monika Sieger, Brigitte Schwederski, Mark Niemeyer, and Wolfgang. Kaim. Reversible radical complex formation of an organometallic diplatinum(IV) compound. Journal of Organometallic Chemistry, (692)15:3151--3155, 2007. [PUMA: complex complex;ESR complex;trimethyl crystal electrochem methylpyridyl mol platinum prepn radical redn spectra structure tetrazine trimethylplatinum]

Biprajit Sarkar, Thilo Schurr, Ingo Hartenbach, Thomas Schleid, Jan Fiedler, and Wolfgang. Kaim. Double cyclometalation of bridging 3,6-bis(2-thienyl)-1,2,4,5-tetrazine in a dinuclear mesityl(dimethylsulfoxide)platinum(II) complex: Structure and properties. Journal of Organometallic Chemistry, (693)8-9:1703--1706, 2008. [PUMA: complex crystal cyclometalated dimethylsulfoxide electrochem mesityl mesityl;cyclometalation mol platinum redn structure tetrazine thienyl]

Axel Klein, Steffen Hasenzahl, Wolfgang Kaim, and Jan. Fiedler. On the Question of Mixed-Valent States in Ligand-Bridged Dinuclear Organoplatinum Compounds RkPt(m-L)PtRkn, k = 2 or 4. Organometallics, (17)16:3532--3538, 1998. [PUMA: bridged cyclic dinuclear ligand organo organoplatinum organoplatinum;mixed organoplatinum;platinum prepn;spectroelectrochem pyrazine tetrazine valent voltammetry]