Selected Publications - Morton Hoffman

"Dynamics of Photochemical Processes in Transition Metal Coordination Complexes as Studied by Time-Resolved Spectroscopy in Optical Spectroscopy in Chemistry and Biology - Progress and Trends", M.Z. Hoffman (D. Fassler, ed., VEB Deutscher Verlag der Wissenschaften, Berlin, DDR, 1989, pp 93-108).

"The Interaction of Radiation-Generated Radicals with Myoglobin in Aqueous Solution. VII. Ferrimyoglobin as a Probe of Free Radical Conversion Processes", K.D. Whitburn and M.Z. Hoffman, Radiat. Phys. Chem., 36, 301-306 (1990).

"Oxalate Ion as a Sacrificial Electron Donor in the Ru(bpy)32+-Methylviologen Model Photochemical System", M.Z. Hoffman and D. Prasad, J. Photochem. Photobiol., A: Chem., 54, 197-204 (1990).

"Energy Gap Dependence of the Efficiency of Charge Separation upon the Sacrificial Reductive Quenching of the Excited States of Ru(II)-Diimine Photosensitizers in Aqueous Solution", H. Sun, G. Neshvad, and M.Z. Hoffman, Molec. Cryst. Liqu. Cryst., 194, 141-150 (1991).

"Radiation-Induced Electron-Transfer Processes in Ru(II)-Diimine Complexes in Aqueous Solution. An Application of Marcus Electron-Transfer Theory", M. Venturi, Q.G. Mulazzani, M. D'Angelantonio, M. Ciano, and M.Z. Hoffman, Radiat. Phys. Chem., 37, 449-456 (1991).

"A Weak Delta Go-Dependence of Back Electron Transfer within the Geminate Redox Pairs Formed in the Quenching of Excited Ru(II) Complexes by Methylviologen", T. Ohno, A. Yoshimura, D.R. Prasad, and M.Z. Hoffman, J. Phys. Chem., 95, 4723-4728 (1991).

"One-Electron Reduction of Ru(II)-Diimine Complexes. Characterization of Reduced Species Containing 2,2'-Bipyridine, 2,2'-Bipyrazine, and 2,2'-Bipyrimidine in Aqueous Solution", M. Venturi, M. D'Angelantonio, M. Ciano, Q.G. Mulazzani, and M.Z. Hoffman, J. Phys. Chem.,95, 5121-5129 (1991).

"Cage Escape Yields in the Quenching of *Ru(bpy)32+ by Methylviologen. Presence of Triethanolamine as a Sacrificial Electron Donor", M. Georgopoulous and M.Z. Hoffman, J. Phys. Chem., 95, 7717-7721 (1991).

"*Cr(bpy)33+-Sensitized Photooxidation of Phenol in Aqueous Solution", C. Pizzocaro, M. Bolte, and M.Z. Hoffman, J. Photochem. Photobiol. A: Chem., 68, 115-119 (1992).

"An Evaluation of the Excited-State Absorption Spectrum of Ru(bpy)32+ in Aqueous and Acetonitrile Solutions", A. Yoshimura, M.Z. Hoffman, and H. Sun, J. Photochem. Photobiol., A: Chem., 70, 29-33 (1993).

"Protonation of the Excited States of Ruthenium(II) Complexes Containing 2,2'-Bipyridine, 2,2'-Bipyrazine, and 2,2'-Bipyrimidine Ligands in Aqueous Solution", H. Sun and M.Z. Hoffman, J. Phys. Chem., 97, 5014-5018 (1993).

Please add the following:

"Polymerization of Acrylamide Photosensitized by Tris(2,2'-bipyridine)chromium(III) Ion in Aqueous Solution", C. Pizzocaro, M. Bolte, and M.Z. Hoffman, Polyhedron, 12, 855-858 (1993).

"Photophysics of Ruthenium(II)-Diimine Complexes in H2O-CH3CN Mixed Solvents", H. Sun and M.Z. Hoffman, J. Phys. Chem., 97, 11956-11959 (1993).

"Photoinduced Charge Separation by Ruthenium(II) Photosensitizers", H. Sun and M.Z. Hoffman, Proc. Indian Acad. Sci., Chem. Sci., 105, 487-494 (1993).

"Quenching of the Excited States of Ru(II)-Diimine Complexes by Oxygen", Q.G. Mulazzani, H. Sun, M.Z. Hoffman, W.E. Ford, and M.A.J. Rodgers, J. Phys. Chem., 98, 1145-1150 (1994).

"Oxidative Quenching of the Excited State of Tris(2,2'-bipyridine)ruthenium(2+) Ion by Methylviologen. Effect of Solution Medium and Temperature", H. Sun, A Yoshimura, and M.Z. Hoffman, J. Phys. Chem., 98, 5058-5064 (1994)

"Properties of Excited States and One-Electron Reduced Forms of Ruthenium(II)-Diimine Photosensitizers", H. Sun, M.Z. Hoffman, and Q.G. Mulazzani, Res. Chem. Intermed., 20, 735-754 (1994).

"Metal Complex Sensitized Photo-oxidation of Phenol in Aqueous Solution", C. Pizzocaro, M. Bolte, H. Sun, and M.Z. Hoffman, New J. Chem., 18, 737-743 (1994).

"Reductive Quenching of the Excited States of Ruthenium(II) Complexes Containing 2,2'-Bipyridine, 2,2'-Bipyrazine, and 2,2'-Bipyrimidine Ligands", H. Sun and M.Z. Hoffman, J. Phys. Chem., 98, 11719-11726 (1994).

"Re-evaluation of the Solvent Cage Model for Electron Transfer Quenching of the MLCT Excited States of Ru(II) Complexes", H. Sun and M.Z. Hoffman, J. Photochem. Photobiol. A: Chem., 84, 97-99 (1994).

"Polymerization of Acrylamide Photoinitiated by Co(NH3)5N32+ with Long-Wavelength Visible Light in Aqueous Solution", M. Sarakha, V. Portal, M. Bolte, and M.Z. Hoffman, J. Photochem. Photobiol. A: Chem., 91, 165-70 (1995).

"Temperature and Specific Anion Effects in Photoinduced Intermolecular Electron-Transfer Reactions", C.D. Clark and M.Z. Hoffman, Proc. Indian Acad. Sci. (Chem. Sci.), 107, 769-777 (1995).

"Ion-Pairing Control of Excited-State Electron-Transfer Reactions. Quenching, Charge Recombination, and Back Electron Transfer", C.D. Clark and M.Z. Hoffman, J. Phys. Chem., 100, 7526-7532 (1996).

"Solvent Reorganization Energy in Excited-State Electron-Transfer Reactions. Quenching and Geminate Pair Back Electron Transfer", C.D. Clark and M.Z. Hoffman, J. Phys. Chem., 100, 14688-14693 (1996).

"Does Back Electron Transfer Within Geminate Redox Pairs Formed in Bimolecular Quenching Follow a Marcus Bell-Shaped Energy-Gap Dependence?", C.D. Clark and M.Z. Hoffman, J. Photochem. Photobiol. A: Chem., 99, 9-11 (1996).

"Acid-Base and Electrochemical Properties of the MLCT Excited States and One-Electron Reduced Forms of Ru(II) Complexes Containing 2-(2'-Pyridyl)pyrimidine and 2,2'-Bipyridine in Aqueous Solution", F. Casalboni, Q.G. Mulazzani, C.D. Clark, M.Z. Hoffman, P.L. Orizondo, M.W. Perkovic, and D.P. Rillema, Inorg. Chem., 36, 2252-2257 (1997).

"Effect of Solution Medium on the Rate Constants of Excited-State Electron-Transfer Reactions of Ruthenium(II)-Diimine Photosensitizers", C.D. Clark and M.Z. Hoffman, Coord. Chem. Rev., 159, 359-373 (1997).

"Ground- and Excited-State Interactions Between Tris(2,2'-bipyridine)rutheniuim(2+) Ion and Phenol in Aqueous Solution", C. Li, H. Sun, and M.Z. Hoffman, J. Photochem. Photobiol. A: Chem., 108, 129-133 (1997).

"Photophysics of Ruthenium(II) Complexes with 2-(2'-Pyridyl)pyrimidine and 2,2'-Bipyridine Ligands in Fluid Solution", C.D. Clark, M.Z. Hoffman, D.P. Rillema, and Q.G. Mulazzani, J. Photochem. Photobiol. A: Chem., 110, 285-290 (1997).

"Ion-Pairing Control of Excited-State Electron-Transfer Reactions. Effect of Cations on Cationic Reactants", C.D. Clark and M.Z. Hoffman, J. Photochem. Photobiol. A: Chem., 111, 9-13 (1997).

"Electron Localization or Delocalization in the MLCT Excited States of Ru(bpy)32+ and Ru(phen)32+. Consequences to Their Photochemistry and Photophysics in Fluid Solution", C. Li and M.Z. Hoffman, Inorg. Chem., 37, 830–832 (1998).

"Ground–State Interactions Between Ruthenium(II)–Diimine Complexes and Phenol and Monochlorophenols in Aqueous Solution", C. Li, M.Z. Hoffman, C. Pizzocaro, G. Mailhot, and M. Bolte, Inorg. Chem., 37, 3078–3082 (1998).

"Comment on `Marcus Inverted Region in the Photoinduced Electron Transfer Reactions of Ruthenium(II)–Polypyridine Complexes with Phenolate Ions’", C. Li and M.Z. Hoffman, J. Phys. Chem. A, 102, 6052–6053 (1998).

"Protonation of the Ground States of Ruthenium(II) Photosensitizers", A. Rugge, C.D. Clark, M.Z. Hoffman, and D.P. Rillema, Inorg. Chim. Acta, 279, 200–205 (1998).

"Interactions Between the Excited States of Ruthenium(II)-Diimine Complexes and Phenols in Aqueous Solution", C. Li, M.Z. Hoffman, C. Pizzocaro, G. Mailhot, and M. Bolte, J. Phys. Chem. A, 102, 7370–7374 (1998).

"Solvent Reorganization Energies in Excited–State Electron–Transfer Reactions. Oxidative Quenching of the MLCT Excited States of Ru(II)–Diimine Complexes", C.E. Crowley, C.D. Clark, and M.Z. Hoffman, Inorg. Chem., 37, 5704–5706 (1998).

"L'Italiano in Boston. An Italian Chemistry Undergraduate Abroad", A. Rugge and M.Z. Hoffman, The Nucleus, 77, 16–19 (Summer 1999).

"One-Electron Redox Potentials of Phenols in Aqueous Solution", C. Li and M.Z. Hoffman, J. Phys. Chem. B, 103, 6653–6656 (1999).

"Oxidation of Phenol by Singlet Oxygen Photosensitized by Tris(2,2'–bipyridine)ruthenium(II) Ion", C. Li and M.Z. Hoffman, J. Phys. Chem. A, 104, 5998–6002 (2000).

“Chemiestudien in den USA (Chemical Education in the U.S.A.)”, M.Z. Hoffman, Nachrichten aus der Chemie, 51, 200-201 (2003).

“Teaching General Chemistry Without a Calculator”, M.Z. Hoffman, Teaching Tips: Innovations in Undergraduate Science Instruction, M. Druger, E. Siebert, and L. Crow, Eds., NSTA Press, 2004.