Publications

Sandeep Ghumaan, Biprajit Sarkar, Nripen Chanda, Monika Sieger, Jan Fiedler, Wolfgang Kaim, and Goutam Kumar. Lahiri. 2,2'-Dipyridylketone (dpk) as Ancillary Acceptor and Reporter Ligand in Complexes (dpk)(Cl)Ru(m-tppz)Ru(Cl)(dpk)n+ where tppz = 2,3,5,6-Tetrakis(2-pyridyl)pyrazine. Inorganic Chemistry, (45)19:7955--7961, 2006. [PUMA: ruthenium pyridylpyrazine electrochem dipyridylketone spectroelectrochem prepn]

Atanu Kumar Das, Biprajit Sarkar, Jan Fiedler, Stanislav Zalis, Ingo Hartenbach, Sabine Strobel, Goutam Kumar Lahiri, and Wolfgang. Kaim. A Five-Center Redox System: Molecular Coupling of Two Noninnocent Imino-o-benzoquinonato-Ruthenium Functions through a p Acceptor Bridge. Journal of the American Chemical Society, (131)25:8895--8902, 2009. [PUMA: crystal center electrochem redox dinuclear;redox structure ruthenium system pyridylpyrazine bridged five iminoquinone spectroelectrochem;ruthenium electronic prepn]

Sascha Berger, Thomas Scheiring, Jan Fiedler, and Wolfgang. Kaim. Coupling of organometallic reaction centers through the non-planar bridging ligand 2,3-bis(2-pyridyl)pyrazine. Zeitschrift fuer Anorganische und Allgemeine Chemie, (630)13-14:2409--2417, 2004. [PUMA: half crystal complex bis sandwich structure iridium pentamethylcyclopentadienyl complex;rhodium pyridylpyrazine binuclear complex;redox complex;mol rhodium potential mononuclear prepn]

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 electrochem;bipyrimidine level azobipyridine electrochem;electrochem electrochem;pyridyltetrazine electrochem carbonyl;MO bipyrimidine carbonyl;Group VIB transition pyridylpyrazine bischelant carbonyl;energy carbonyl;electronic pyridyltetrazine;pyridylpyrazine]

Nripen Chanda, Biprajit Sarkar, Sanjib Kar, Jan Fiedler, Wolfgang Kaim, and Goutam Kumar. Lahiri. Mixed Valence Aspects of Diruthenium Complexes (L)ClRu2(m-tppz)n+ Incorporating 2-(2-Pyridyl)azoles (L) as Ancillary Functions and 2,3,5,6-Tetrakis(2-pyridyl)pyrazine (Tppz) as Bis-Tridentate Bridging Ligand. Inorganic Chemistry, (43)16:5128--5133, 2004. [PUMA: dinuclear ruthenium prepn;pyridylbenzoxazole complex;pyridylbenzimidazole pyridylpyrazine complex electrochem prepn;ruthenium prepn;pyridylbenzthiazole redox pyridylazole prepn]

Moumita Koley, Biprajit Sarkar, Sandeep Ghumaan, Ece Bulak, Jan Fiedler, Wolfgang Kaim, and Goutam Kumar. Lahiri. Probing Mixed Valence in a New tppz-Bridged Diruthenium(III,II) Complex (μ-tppz)Ru(bik)Cl23+ (tppz = 2,3,5,6-Tetrakis(2-pyridyl)pyrazine, bik = 2,2'-Bis(1-methylimidazolyl)ketone): EPR Silence, Intervalence Absorption, and nCO Line Broadening. Inorganic Chemistry, (46)9:3736--3742, 2007. [PUMA: UV ESR charge IR electrochem redn mixed valent transition ruthenium transfer methylimidazolylketone;ruthenium pyridylpyrazine methylimidazolylketone;intervalence methylimidazolylketone oxidn prepn]

Tanaya Kundu, Biprajit Sarkar, Tapan Kumar Mondal, Shaikh M. Mobin, Francisco A. Urbanos, Jan Fiedler, Reyes Jimenez-Aparicio, Wolfgang Kaim, and Goutam Kumar. Lahiri. Redox-Rich Spin-Spin-Coupled Semiquinoneruthenium Dimers with Intense Near-IR Absorption. Inorganic Chemistry, (50)11:4753--4763, 2011. [PUMA: absorption electrochem complex complex;electronic complex;IR complex;spin structure coupling dinuclear ruthenium pyridylpyrazine complex;prepn complex;ESR semiquinone]

Tanaya Kundu, David Schweinfurth, Biprajit Sarkar, Tapan Kumar Mondal, Jan Fiedler, Shaikh M. Mobin, Vedavati G. Puranik, Wolfgang Kaim, and Goutam Kumar. Lahiri. Strong metal-metal coupling in mixed-valent intermediates Cl(L)Ru(m-tppz)Ru(L)Cl+, L = b-diketonato ligands, tppz = 2,3,5,6-tetrakis(2-pyridyl)pyrazine. Dalton Transactions, (41)43:13429--13440, 2012. [PUMA: MO acetylacetonato DFT;optimized crystal electrochem mol diketonate mixed redox valence structure dinuclear ruthenium pyridylpyrazine MO;dinuclear acetylacetonate prepn]