Office: Room 802B, 17 Lex., Phone: (646) 660-6218, E-mail: David_Szalda@baruch.cuny.edu

David J. Szalda, Ph.D., Johns Hopkins University (Chemistry), is a Research Collaborator at Brookhaven National Laboratory where he uses X-ray crystallography to study the binding of carbon dioxide to metal complexes and electron transfer reactions. His publications have appeared in various journals of chemistry. He is an advisor to students in the biomedical specialization.

RESEARCH
"The primary focus of my research is a better understanding of the basic chemical principles required to create an efficient and economical method to convert solar energy into a storable and transportable fuel. Therefore we are investigating electron transfer reactions and the binding of carbon dioxide to metal complexes in order to be able to store solar energy by converting carbon dioxide (an end product of combustion) into methane or methanol (a storable and transportable fuel). This work is done in collaboration with Drs. Norman Sutin, Carol Creutz, and Etsuko Fujitu at Brookhaven National Laboratory."

Publications 1992-Present

Song, J-S., D. J. Szalda, and R. M. Bullock, 2001.
      Alcohol Complexes of Tungsten Prepared by Ionic Hydrogenations of Ketones. Organomettallics, 20:3337-3346. (American Chemical Society, Washington, DC)
Fujita, E. and D. J. Szalda, 2000.
      Crystallization and Structure of a Binuclear Species Containing the Co-C(OH)-O-Co Moiety. Inorganica Chemica Acta, 297:139-144.(Elsevier Science, New York, NY)
Cheung, T-Y., D. J. Szalda and R. M. Bullock, 1999.
      n Uncommon Bonding Mode of a Familiar Ligand:A Molybdenum Complex with a Four-electron Donor Chelating (h3-PPh3 Ligand, and Its Structural Determination Using Synchrotron Radiation. Chemical Communication, 1629-1630. (Royal Society of Chemistry, Cambridge, UK)
Mori, Y., D. J. Szalda, B. S. Brunschwig, H. A, Schwarz and E. Fujita, 1999.
      Towards the Photoreduction of CO2 with Ni(bipyridine)n2+ Complexes. In Advances in Chemistry Series 254; Photochemistry and Radiation Chemistry: Complementary Methods for the Study of Electron Transfer, Wishart, J. F. and Nocera, D. G., American Chemical Society, Washington, DC, 279-292.
Shin, Y-G.K., D. J. Szalda, B. Brunschwig, C. Creutz, and N. Sutin. 1997.
      Electronic and Molecular Structures of Pentaammineruthenium Pyridine and Benzonitrile Complexes as a Function of Oxidation State. Inorg. Chem. 36:3190-3197. (American Chemical Society, Washington, DC)
Song, J.-S., D. J. Szalda and R. M. Bullock, 1997.
      Hydride Transfer Reactions of Transition Metal Hydrides in the Preparation of [Cp(CO)3W(h1-aldehyde)]+OTf - and [Cp(CO)3W(h1-ketone)]+OTf - Complexes. Inorganica Chemica Acta, 259:161-172. (Elsevier Science, New York, NY)
Song, J.-S., D. J. Szalda and R. M. Bullock, 1996.
      Ether Complexes of Tungsten with Two Different Binding Modes: An O-Bound Ether and an h2-(C=C) Vinyl Ether. Evidence for C-H...O Hydrogen Bonding of Vinylic C-H Groups. J. Am. Chem. Soc. 118:11134-11141. (American Chemical Society, Washington, DC)
Szalda D.J., F. Fagalde and N. E. Katz, 1996.
      (2,2’-Bipyridine-1k2N)(2,2’:6’,2”-terpyridine-1k3N)(pentaammino-2k5N)(m-4,4’-bipyridine-N,N')diruthenium Tetrakis(hexafluorophosphate) Acetonitrile Solvate. Acta Crystallographica Section C, C52:3013-3016. (International Union of Crystallography, UK)
Kelly, C,. D.J. Szalda C. Creutz, H.A. Schwarz and N. Sutin, 1996.
      Electron transfer barriers for ground- and excited-state redox couples: trans-Dioxo(1,2,8,11-tetra-azacyclotetradecane)osmium(VI)/osmium(V). Inorganica Chemica Acta, 243:39-45. (Elsevier Science, New York, NY)
Bullock R. M., J-S. Song and D. J. Szalda, 1996.
      Protonation of Metal Hydrides by Strong Acids. Formation of an Equilibrium Mixture of Dihydride and Dihydrogen Complexes from Protonation of CpOs(CO)2*H. Structural Characterization of [CpW(CO)2(PMe3)(H)2]+OTf -. Organometallics, 15:2504-2516.(American Chemical Society, Washington, DC)
Bullock, R. M., J.-S. Song and D. J. Szalda, 1996.
      Protonation of metal hydrides by strong acids. Formation of an equilibrium mixture of dihydride and dihydrogen complexes from protonation of Cp*Os(CO)2H. Structural characterization of [CpW(CO)2(PMe3)(H2)+OTf. Organometallics 15: 2504-2516.
Kelly, C., D. J. Szalda, C. Creutz, H. A. Schwarz, and N. Sutin. 1996.
      Electron transfer barriers for ground- and excited-state redox couples: trans-dioxo (1,2,8,11-tetraazacyclotetradecane)osmium(VI)/osmium(V). Inorganica Chemica Acta 243: 39-45.
Schindler, S., and D. J. Szalda. 1995.
      Syntheses, structures and properties of copper and nickel complexes of the macrocyclic ligand 5,6,11,12,17,18,23,24-octahydrotetrabenzo[b,f,j,n][1,5,9,13] tetraazacyclohexadecine (H8TAAB). Inorganica Chimica Acta, 228: 93-102.
Szalda, D. J., E. Fujita, R. Sanzenbacher, H. Paulus, and H. Elias. 1994.
      Synthesis and properties of nickel(I) and nickel(II) complexes of a series of macrocyclic N4 ligands: Crystal structures of C-RSSR-[NiIHTIM](ClO4), C-RSSR-[NiIIHTIM](ClO4)2, C-RRSS-[NiIIHTIM](ClO4)2, and [NiIITIM](ClO4)2(HTIM = 2,3,9,10-Tetramethyl-1,4,8,11-tetraazacyclotetradecane, TIM = 2,3,9,10-Tetramethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene. Inorg. Chem., 33: 5855-5863.
Chou, M. H., D. J. Szalda, C. Creutz, and N. Sutin. 1994.
      Reactivity and coordination chemistry of aromatic carboxamide RC(O)NH2 and carboxylate ligands: Properties of pentaamineruthenium(II) and - (III) complexes. Inorg. Chem., 33: 1674-1684.
Szalda, D. J., M. H. Chow, E. Fujita, and C. Creutz. 1992.
      Properties and reactivity of metallocarboxylates. Crystal and molecular structure of the -CO22- -bridged ëpolymerí {[CoIII (en)2(CO2)](ClO4).H2O}n. Inorg. Chem., 31: 4712-4714.
Song, J.-S., D. J. Szalda, R. M. Bullock, C. J. C. Lawrie, M. A. Rodkin, and J. R. Norton. 1992.
      Hydride transfer by hydrido transition metal complexes. Ionic hydrogenation of aldehydes and ketones, and structural characterization of an alcohol complex. Angew. Chem. Int. Ed. Engl., 31: 1233-1235. (German translation: Angew. Chem., 1992, 104: 1280-1282.
Szalda, D. J., and E. Fujita. 1992.
      Structures of racemic and meso (5,7,7,12,14,14-Hexamethyl-1,4,8,11-tetraazacyclotetradeca-4,11-diene)nickel(II) perchlorate. Acta Cryst. C, C48: 1767-1771.
Schindler, S., D. J. Szalda, and C. Creutz. 1992.
      Syntheses, structures, and properties of copper(II) and copper(I) complexes of the new binucleating ligand 1,3-Bis[bis(2-pyridylmethyl)amino]benzene. Inorg. Chem., 31: 2255-2264.
Lemke, F. R., D. J. Szalda, and R. M. Bullock. 1992.
      Insertion of isocyanides into the Zr-C bond of ruthenium/zirconium dimetalloalkenes. Spectroscopic and structural comparisons of the nu2-iminoacyl complexes Cp(PMe3)2RuCH=CRC(NtBu)ZrClCp2 (R = H vs. R = Me) and kinetics of isomerization of a thermodynamically unstable nu2-iminoacyl complex. Organometallics 11:876-884.