Karl S. Hagen

Associate Professor, Inorganic Chemistry

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Harvard ANU, Australia UC, Berkeley Emory Collaborations

21.             Heidi Börzel, Peter Comba, Karl S. Hagen, Yaroslaw D. Lampeka, Achim Lienke, Gerald Linti, Michael Merz, Hans Pritzkow and Ludmilla V. Tsymbal "Iron coordination chemistry with tetra-, penta- and hexadentate bispidine-type ligands" Inorg. Chim. Acta. 2002, 337, 407-419.  Special issue dedicated to Karl Wieghardt on his 60th birthday


20.             Heidi Börzel, Peter Comba, Karl S. Hagen, Hans Pritzkow, Markus Schatz, Siegfried Schindler, and Olaf Walterd "The stabilization of dicopper(II) peroxo compounds by bispidine-type ligands" Inorg. Chem. 2002, 41, 5440-5452.


19.             K. N. Jayaprakash, Debasis Hazra, Karl S. Hagen, Uttamkumar Samanta, Mohan M. Bhadbhade, Vedavati G. Puranik, Amitabha Sarkar "Solution and solid state sonformation of Fischer carbene complexes vis-à-vis conformation of aryl carboxamides: complexation of the aromatic ring by tricarbonylchromium makes a difference" J. Organomet. Chem., 2001, 618, 709-722.


18.             Sheyi Wang, Michael S. Wemple, Jae Yoo, Kirsten Folting, John C. Huffman, Karl S. Hagen, David N. Hendrickson,* and George Christou* "Tetranuclear Manganese Carboxylate Complexes with a Trigonal Pyramidal Metal Topology via Controlled Potential Electrolysis" Inorg. Chem. 2000, 39, 1501-1513. Web Release Date: 3/14/2000


17.             Heidi Börzel, Peter Comba, Karl S. Hagen, Charis Katsichtis, and Hans Pritzkow  "A copper(I) oxygenation precursor in the entatic state: Two isomers of a copper(I) compound of a rigid tetradentate ligand" Chem. Eur. J. 2000, 6, 914-919.

                  This full paper is a result of a collaboration with Peter Comba where one of his students (Heidi) spent 10 weeks in my lab learning how to synthesize and characterize air sensitive compounds.


16.             Daniel J. Williams, Donald Vanderveer, Brian R. Crouse, Rhonda R. Raye, Ted Carter, Karl S. Hagen and Meggan Brewer "Spectroscopic Properties and Molecular Structure of 1,3-Dimethyl-2-(Se, Se-dibromoseleno)-2(3H)-imidazolylidene." Main Group Chemistry, 1997, 2, 61-66.


15.             Jonathan D. Cohen, Sonha Payne, Karl S. Hagen, and Joann Sanders‑Loehr "Resonance Raman Evidence for a Trapped-Valence State in an Iron(II)/Iron(III) Complex Formed from an Outer-Sphere Reaction Between a Diiron(II) Complex and Oxygen."  J. Am. Chem. Soc. 1997, 119, 2960-2961.


14.             M. W. Wemple, D. M. Adams, K. S. Hagen, K. Folting, D. N. Hendrickson, and G. Christou "Site-Specific Ligand Variation in Manganese-Oxide Cubane Complexes, and Unusual Magnetic Relaxation Effects in [Mn4O3X(OAc)3(dbm)3] (X = N3-, OCN-) J. Chem. Soc., Chem. Commun. 1995, 1591-1593.


13.             D. M. Collard, M. J. Sadri, D. VanDerveer, K. S. Hagen "Highly Twisted Substituted Arenes - X-ray Structure and Dynamic H-1-NMR Spectra of 1,4-Dialkyl-2,3,5,6-Tetrakis(alkylsulfonyl)benzenes." J. Chem. Soc., Chem. Commun. 1995, 1357-1358.


12.             C. R. Randall, L. Shu, Y.-M. Chiou, K. S. Hagen, M. Ito, N. Kitajima, R. J. Lachicotte, Y. Zang, L. Que, Jr. "X-ray Absorption Pre-Edge Studies of High-Spin Iron(II) Complexes" Inorg. Chem. 1995, 34, 1036-1039.


11.             S. Wang, H-L. Tsai, K. S. Hagen, D. N. Hendrickson, G. Christou "New Structural Type in Manganese Carboxylate Chemistry via Coupled Oxidation/Oxide Incorporation: Potential Insights into Photosynthetic Water Oxidation" J. Am. Chem. Soc.  1994, 116, 8376-8377.


10.             A. Nanthakumar, S. Fox, S. M. Nasir, N. Ravi, B. H. Huynh, R. D. Orosz, E. P. Day, K. S. Hagen, and K. D. Karlin, "Dioxygen Reactivity Models for Cytochrome C Oxidase: Synthesis and Characterization of Oxo and Hydroxo-Bridged Porphyrin-Iron/Copper Dinuclear Complexes" in "The Activation of Dioxygen and Homogeneous Catalytic Oxidation"  D. H. R. Barton, Ed. Plenum Press, N. Y. 1993. pp 381-394.


9.             Lanny S. Liebeskind, Marvin S. Yu, Richard H. Yu, Jianying Wang, and Karl S. Hagen "4,4'-Bicyclobutene-1,2-diones: Bisquaryls" J. Am. Chem. Soc. 1993, 115, 9048-9055.


8.             A. Nanthakumar, S. Fox, N. N. Murthy, K. D. Karlin, N. Ravi, B. H. Huynh, R. D. Orosz, E. P. Day, K. S. Hagen, and N. J. Blackburn "Oxo and Hydroxo-Bridged (Porphyrin)Iron(III)-Copper(II) Species as Cytochrome C Oxidase Models: Acid-Base Interconversions and X-ray Structure of the Fe(III)-(O2-)-Cu(II) Complex"  J. Am. Chem. Soc. 1993, 115, 8513-8514.


7.             Dong Hou, Gyu-Shik Kim, Karl S. Hagen, and Craig L. Hill "Synthesis and Structural Characterization of an Organic Soluble Polyester of a Polyvanadate of [(n-C4H9)4N][V6O12(OCH3)7]." Inorg. Chim. Acta  1993, 211, 127-130.


6.             Dong Hou, Karl S. Hagen, and Craig L. Hill "Pentadecavanadate, [V15O42]9-, a New Highly-copndensed Fully-oxidized Isopolyvanadate with Kinetic Stability in Water." J. C. S. Chem. Commun.  1993, 426-428.


5.             Gyu-Shik Kim, Karl S. Hagen, and Craig Hill "Synthesis, Structure, Spectroscopic Properties, and Hydrolytic Chemistry of Water and Organic Solvent Soluble Anti-HIV-Active Organophosphonyl Polyoxotungstates of Formula [C6H5P(O)]2Xn+W11O39(8-n)- (where Xn+ = P5+, Si4+)." Inorg. Chem. 1992, 31, 5316-5324.


4.             Dong Hou, Karl S. Hagen, and Craig L. Hill "Tridecavanadate, [V13O34]3-, a New High Potential Isopolyvanadate." J. Am. Chem. Soc. 1992, 114, 5864-5866.


3.             Alessandra Gerli, Karl S. Hagen and Luigi G. Marzilli, "The Nuclearity and Formulation of SALPN Complexes Formed from M(O2CCH3)2: Resolution of Longstanding Problems by X-ray Crystallography." Inorg. Chem. 1991, 30, 4673-4676.


2.             F. M. Menger, Jeng-Jong Lee, and K. S. Hagen, "Molecular Laminates.  Three Distinct Crystal Packing Modes."  J. Am. Chem. Soc. 1991, 113, 4017-4019.


1.             F.-J. Wu, D. M. Kurtz, Jr., K. S. Hagen, P. D. Nyman, P. G. Debrunner, and V. A. Vankai "m-Oxo/hydroxobis(m-carboxylato)idiiron(III) and Dimanganese(III) Complexes with Capping Tris(imidazol-2-yl)phosphine Ligands." Inorg. Chem. 1990, 29, 5174-5183.