@article{britten_hearns_preuss_richardson_bin-salamon_2007, title={Mn(II) and Cu(II) complexes of a dithiadiazolyl radical ligand: Monomer/dimer equilibria in solution}, volume={46}, ISSN={["1520-510X"]}, DOI={10.1021/ic0619456}, abstractNote={Complexes of the 4-(2'-pyridyl)-1,2,3,5-dithiadiazolyl radical bidentate ligand with bis(hexafluoroacetylacetonato)manganese(II) and with bis(hexafluoroacetylacetonato)copper(II) have been prepared. Unlike the previously reported cobalt(II) complex, these complexes form dimers via intermolecular S...S contacts in the solid state. The spectroscopic and magnetic properties of these species in the solid state and in solution are reported and compared to the previously reported Co(II) complex, with emphasis on the elucidation of the a monomer/dimer equilibrium in the solution. The electrochemical properties of these species in solution are also presented and discussed.}, number={10}, journal={INORGANIC CHEMISTRY}, author={Britten, James and Hearns, Nigel G. R. and Preuss, Kathryn E. and Richardson, John F. and Bin-Salamon, Sofi}, year={2007}, month={May}, pages={3934–3945} } @article{bin-salamon_brewer_depperman_franzen_kampf_kirk_kumar_lappi_peariso_preuss_et al._2006, title={Testing Bridge-Mediated Differences in Dinuclear Valence Tautomeric Behavior}, volume={45}, ISSN={0020-1669 1520-510X}, url={http://dx.doi.org/10.1021/ic060170y}, DOI={10.1021/ic060170y}, abstractNote={Two structurally characterized dinuclear valence tautomers are described. Cobalt ions are bridged by p- and m-phenylene units connected to 2,2'-bipyridines. X-ray crystal structures show that the molecules are in the [(Co(III))(Co(III))] forms at ca. 125 K, while spectroscopic studies show that both molecules can achieve the [(Co(II))(Co(II))] form above 400 K and confirm the [(Co(III))(Co(III))] form below 10 K. Magnetic susceptibility studies are also included. Our results highlight the necessity of studying both crystalline and amorphous samples to distinguish the effects of intrinsic electronic structure and intermolecular forces on valence tautomeric behavior.}, number={11}, journal={Inorganic Chemistry}, publisher={American Chemical Society (ACS)}, author={Bin-Salamon, Sofi and Brewer, Scott H. and Depperman, Ezra C. and Franzen, Stefan and Kampf, Jeff W. and Kirk, Martin L. and Kumar, R. Krishna and Lappi, Simon and Peariso, Katrina and Preuss, Kathryn E. and et al.}, year={2006}, month={May}, pages={4461–4467} } @article{bin-salamon_brewer_franzen_feldheim_lappi_shultz_2005, title={Supramolecular control of valence-tautomeric equilibrium on nanometer-scale gold clusters}, volume={127}, ISSN={["0002-7863"]}, DOI={10.1021/ja042520q}, abstractNote={This communication describes the preparation and characterization of a valence tautomer complex covalently attached to gold nanoparticles. Variable-temperature IR spectroscopy is used to determine the equilibrium thermodynamic parameters for the valence tautomerization. These results are compared with a nonsurface combined valence tautomer complex. The results show that surface confinement attenuates both DeltaH degrees and DeltaS degrees . We attribute these changes to a reduced accessible molecular surface area.}, number={15}, journal={JOURNAL OF THE AMERICAN CHEMICAL SOCIETY}, author={Bin-Salamon, S and Brewer, S and Franzen, S and Feldheim, DL and Lappi, S and Shultz, DA}, year={2005}, month={Apr}, pages={5328–5329} } @article{shultz_kumar_bin-salamon_kirk_2005, title={Valence tautomerization and exchange coupling in a cobalt-nitronylnitroxide-semiquinone complex}, volume={24}, ISSN={["0277-5387"]}, DOI={10.1016/j.poly.2005.03.016}, abstractNote={Abstract The synthesis, variable-temperature electronic absorption spectroscopy, magnetic susceptibility of a novel valence tautomer are presented, and thermodynamic parameters for the valence tautomeric equilibrium were determined. The dioxolene used is a semiquinone–nitronylnitroxide donor–acceptor ligand. Due to the ferromagnetic coupling inherent in the semiquinone–nitronylnitroxide donor–acceptor biradical, the Co III form of the valence tautomer may display an additional stabilization of the high-spin ground state resulting from valence delocalization. As such, this would represent a unique example of double exchange in an organic system.}, number={16-17}, journal={POLYHEDRON}, author={Shultz, DA and Kumar, RK and Bin-Salamon, S and Kirk, ML}, year={2005}, month={Nov}, pages={2876–2879} } @article{hearns_preuss_richardson_bin-salamon_2004, title={Design and synthesis of a 4-(2 '-pyridyl)-1,2,3,5-dithiadiazolyl cobalt complex}, volume={126}, ISSN={["1520-5126"]}, DOI={10.1021/ja046304t}, abstractNote={The 4-(2'-pyridyl)-1,2,3,5-dithiadiazolyl neutral radical 1 has been prepared for use as a spin-bearing bidentate ligand. The coordination of this ligand to bis(hexafluoroacetylacetonato)cobalt affords a thermally stable complex 2. Magnetic susceptibility measurements of the crystalline complex indicate ferromagnetic coupling between the ligand-centered spin and the unpaired electrons of the high-spin Co(II).}, number={32}, journal={JOURNAL OF THE AMERICAN CHEMICAL SOCIETY}, author={Hearns, NGR and Preuss, KE and Richardson, JF and Bin-Salamon, S}, year={2004}, month={Aug}, pages={9942–9943} }