Prof. Dr. Mohamed S.A. Hamza

Profile

Academic positionFull Professor
Research fieldsInorganic Molecular Chemistry
Keywordscoenzyme B12, ligands, equilibrium, kinetic studies, corrinoid derivatives

Current contact address

CountryEgypt
CityCairo
InstitutionAin Shams University
InstituteFaculty of Science, Department of Chemistry

Host during sponsorship

Prof. Dr. Rudi EldikInstitut für Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen
Start of initial sponsorship01/01/1999

Programme(s)

1997Humboldt Research Fellowship Programme

Publications (partial selection)

2004Mohamed S.A. Hamza, Alessandro Felluga, Lucio Randaccio, Giovanni Tauzher, Rudi van Eldik: Electronically and sterically tuned trans labilization controls the substitution behaviour of cobaloximes. In: Dalton Trans., 2004, 287-291
2004Basam M. Alzoubi, Mohamed S.A. Hamza, Alexxandro Felluga, Lucio Randaccio, Giovanni Tauzher, Rudi van Eldik: Kinetics and Mechanism of Axial Ligand Substitution of Alkyl Cobaloximes by Substituted Pyridines in Different Solvents. In: Eur. J. Inorg. Chem, 2004, 653-659
2004Mohamed S.A. Hamza, Rudi van Eldik: The profound influence of a single metal-carbon bond on the reactivity of bio-relevant cobalt(III) complexes . In: Dalton Trans., 2004, 1-12
2003Achim Zahl, Peter Igel, Manfred Weller, Dimitri E. Khoshtariya, Mohamed S.A. Hamza, Rudi van Eldik: Compact high pressure unit for ultraviolet-visible-near-infrared spectroscopic measurements at pressures up to 400 MPa . In: Review of Scientific Instruments, 2003, 3758-3762
2003Reinhard Kissner, Chris Thomas ,Mohamed S.A. Hamza, Rudi van Eldik, Willem H. Koppenol: Evaluation of Activation Volumes for the Conversion of Peroxynitrous to Nitric Acid. In: J. Phys. Chem. A, 2003, 11261-11263
2003Debabrata Chatterjee, Mohamed S.A. Hamza, Mohamed M. Shoukry, Anannya Mitry, Sreerupa Deshmukh, Rudi van Eldik: Interaction of [RuIII(edta)(H2O)] with amino acids in aqueous solution. Equilibrium, kinetic and protease inhibition studies. In: Dalton Trans., 2003, 293-299
2003Mohamed S.A. Hamza, Xiang Zou, Kenneth L. Brown, Rudi van Eldik: Kinetic and thermodynamic studies on the cyanation reactions and base-on/base-off equilibria of alkyl-13-epicobalamins. In: Dalton Trans. , 2003, 2986-2991
2003Basam M. Alzoubi, Mohamed S.A. Hamza, Carlos Dücker-Benfer, Rudi van Eldik: Mechanistic Insight Gained into the Ligand Substitution Reactions of Bis-(o-benzosemiquinonediiminato)(triphenylphosphane) cobalt(III) - Kinetic, Solvent, and Volume Profile Studies. In: Eur. J. Inorg. Chem., 2003, 2972-2978
2003Mohamed S.A. Hamza, Andrew G. Cregan, Nicola E. Brasch, Rudi van Eldik: Mechanistic insight from activation parameters for the reaction between co-enzyme B12 and cyanide: further evidence that heterolytic Co-C bond cleavage is solvent-assisted. In: Dalton Trans. , 2003, 596-602
2003Mohamed S.A. Hamza, Xiang Zou, Kenneth L. Brown, Rudi van Eldik: Thermodynamic and Kinetic Data for the Base-On/Base-Off Equilibration of Alkylcobalamins. In: Eur. J. Inorg. Chem., 2003, 268-276
2002Ivana Ivanovic-Burmazovic, Mohamed S.A. Hamza, Rudi van Eldik: A Detailed Mechanistic Study of the Substitution Behavior of an Unusual Seven-Coordinate Iron(III) Complex in Aqueous Solution. In: Inorganic Chemistry, 2002, 5150-5161
2002Mohamed S.A. Hamza, Xiang Zou, Kenneth L. Brown, Rudi van Eldik: Detailed kinetic and thermodynamic studies on the cyanation of alkylcobalamins. A generalized mechanistic description. In: J. Chem. Soc., Dalton Trans., 2002, 3832-3839
2002Mohamed S.A. Hamza, Basam M. Alzoubi, Carlos Dücker-Benfer, Rudi van Eldik: Equilibrium, Kinetic and Leaving Group Effect Studies on Ligand Substitution Reactions of a Simple Model for Coenzyme B12. In: Eur. J. Inorg. Chem., 2002, 968-974
2002Mohamed S.A. Hamza, Rudi van Eldik, Pascal L. S. Harper, John M. Pratt, Eric A. Betterton: Five-Coordination and Adduct Formation in CoIII-Corrinoids Dissecting Ligand Substitution into Its Component Steps. In: Eur. J. Inorg. Chem., 2002, 580-583
2002Ivana Ivanovic-Burmazovic, Mohamed S.A. Hamza, Rudi van Eldik: Substitution behaviour of an unusual seven-coordinate iron(III) complex different solvents. In: Inorganic Chemistry Communications, 2002, 937-940
2002Debabrata Chatterjee, Anannya Mitra, Mohamed S.A. Hamza, Rudi van Eldik: The substitution mechanism of [RuIII(edta)(H2O)] with DNa bases, nucleoside and nucleotides in aqueous solution revisited. In: J. Chem. Soc., Dalton Trans. , 2002, 962-965
2001Mohamed S.A. Hamza: Equilibrium and Kinetic studies on the reactions of alkylcobalamins with cyanide. In: American Chemical Society, 2001, 5440-5447
2001Mohamed S.A. Hamza, Zhong-Li Lu, Rudi van Eldik: Thermodynamic and Kinetic Studies on Complex-Formation Reactions of a Cobalt(II) Tripodal Tetraamine Complex. In: Eur. J. Inorg. Chem., 2001, 503-510
2000Mohamed S.A. Hamza, Maria Wolak, Grazyna Stochel, Rudi van Eldik: Aquacobalamin (Vitamin B12a) Does Not Bind NO in Aqueous Solution. Nitrite Impurities Account for Observed Reaction. In: Inorg. Chem., 2000, 2018-2019
2000Mohamed S.A. Hamza, Carlos Dücker-Benfer, Rudi van Eldik: Ligand Substitution Behavior of a Simple Model for Coenzyme B12. In: Inorg. Chem., 2000, 3777-3783
2000Mohamed S.A. Hamza, Carlos Dücker-Benfer, Conrad Eckhardt, Rudi van Eldik: Substitution Behaviour of an Alkylcobaltamine Complex - Evidence for a Limiting Dissociative Mechanism. In: Eur. J. Inorg. Chem. , 2000, 1563-1569