Karl S. Hagen

Associate Professor, Inorganic Chemistry

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17.             A. J. M. Richards, A. J. Thomson, R. H. Holm, and K. S. Hagen, "The magnetic circular dichroism of the linear trinuclear clusters [Fe3S4(SR)4]3- in purple aconitase and in a synthetic model." Spectrochimica Acta, 1990, 46A, 987-993.


16.            M. A. Whitener, J. K. Bashkin, K. S. Hagen, J.-J. Girerd, E. Gamp, N. Edelstein, and R. H. Holm, "A New Inorganic Ring System: Planar Fe3(m2-SR)3 in [Fe3(SR)3X6]3--- Synthesis, Structures, and Solution Conformation and Equilibrium." J. Am. Chem. Soc. 1986, 108, 5607-5620


15.            G. Christou, Karl S. Hagen, J. K. Bashkin, and R. H. Holm, "The Clusters [Co8S6(SPh)8]4-,5-: Preparations, Properties, and Structural Relationship of Near-Cubic Co8(m4-S)6 Cores to the Clusters in Synthetic Pentlandite." Inorg. Chem. 1985, 24, 1010-1018.

14.            J.-J. Girerd, G. C. Papaefthymiou, A. D. Watson, E. Gamp, K. S. Hagen, N. Edelstein, R. B. Frankel, and R. H. Holm, "Electronic Properties of the Linear Antiferromagnetically Coupled Clusters [Fe3S4(SR)4]3- , Structural Isomers of the [Fe3S4]+ Unit in Iron-Sulfur Proteins." J. Am. Chem. Soc. 1984, 106, 5941-5947.


13.            R. H. Holm, K. S. Hagen, and A. D. Watson, " Assembly of Biologically Relevant Iron-Sulfur Clusters." In IUPAC "Chemistry for the Future" H. Grünewald, Ed.; Pergamon Press: Oxford and New York, 1984; pp. 115-124.


12.            Karl S. Hagen, Alan D. Watson, and R. H. Holm, "Analogues of the [Fe4S4]+ Sites of Reduced Ferredoxins: Single-Step Synthesis of the Clusters [Fe4S4(SR)4]3- and Examples of Compressed Tetragonal Core Structures." Inorg. Chem. 1984, 23, 2984-2990.


11.            Karl S. Hagen and R. H. Holm, "Synthesis and Stereochemistry of Metal(II)-Thiolates of the Types [M(SR)4]2-, [M2(SR)6]2-, and [M4(SR)10]2-, (M = Fe(II), Co(II))." Inorg. Chem. 1984, 23, 418-427.


10.            Thomas Costa, Jay Dorfman, Karl S. Hagen, and R. H. Holm, "Synthesis and Stereochemistry of Mono-, Bi-, and Tetranuclear Manganese Thiolates." Inorg. Chem. 1983, 22, 4091-4099.


9.              P. K. Mascharak, Karl S. Hagen, J. T. Spence, and R. H. Holm, "Structural Distortions of the [Fe4S4]2+ Core of [Fe4S4(S-t-C4H9)4]2- in Different Crystalline Environments and Detection and Instability of Oxidized ([Fe4S4]3+) Clusters." Inorg. Chim. Acta  1983, 80, 157-170.

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8.              Karl S. Hagen and R. H. Holm, "Stereochemistry of [Cd4(SC6H5)10]2-, a Cage Complex Related to the Cadmium-Cysteinate Aggregates in Metallothioneins." Inorg. Chem. 1983, 22, 3171-3174.


7.              Karl S. Hagen, Alan D. Watson, and R. H. Holm, "Synthetic Routes to Fe2S2, Fe3S4, Fe4S4, and Fe6S9 Clusters from the Common Precursor [Fe(SC2H5)4]2-: Structures and Properties of [Fe3S4(SR)4]3-  and  [Fe6S9(SC2H5)2]4-, Examples of the Newest Types of Fe-S-SR Clusters."  J. Am. Chem. Soc. 1983, 105, 3905-3913.


6.              Karl S. Hagen, G. Christou, and R. H. Holm,  "Trinuclear Metal(II)-Sulfide- Thiolate Complexes: Synthesis, Properties, and Structures of [M3S(1,2-(SCH2)2C6H4)3]2-  (M= Fe(II), Co(II))." Inorg. Chem. 1983, 22, 309-314.


5.              Karl S. Hagen and R. H. Holm, "Systematic Iron(II)-Thiolate Chemistry: Synthetic Entry to Trinuclear Complexes."  J. Am. Chem. Soc. 1982, 104, 5496-5497.


4.              Karl S. Hagen, D. W. Stephan, and R. H. Holm, "Metal Ion Exchange Reactions in Cage Molecules: The Systems [M4-nM'n(SC6H5)10]2- (M,M' = Fe(II), Co(II), Zn(II) and Cd(II)) with Adamantane-like Stereochemistry and the Structure of [Fe4(SC6H5)10]2-."  Inorg. Chem. 1982, 21, 3928-3936.


3.              G. Christou, Karl S. Hagen,  and R. H. Holm, "Synthesis, Structure, and Properties of [Co8S6(SC6H5)8]4-, Containing an Octanuclear Co8S6 Rhombic Dodecahedron Related to that of Cobalt Pentlandite." J. Am. Chem. Soc. 1982, 104, 1744.


2.              Karl S. Hagen, John G. Reynolds, and R. H. Holm, "Definition of Reaction Sequences Resulting in Self-Assembly of [Fe4S4(SR)4]2-  Clusters From Simple Reactants." J. Am. Chem. Soc. 1981, 103,  4054-4063.


1.              Karl S. Hagen, J. M. Berg, and R. H. Holm,  "Synthesis and Structure of Deca(benzenethiolato)tetraferrate(II) Dianion, an Intermediate in the Assembly of [Fe4S4(SC6H5)4]2- from Simple Reagents." Inorg. Chim. Acta  1980, 45, L17.