Prof. Dr. Mohamed S.A. Hamza

Profil

Derzeitige StellungProfessor W-3 und Äquivalente
FachgebietAnorganische Molekülchemie
Keywordscoenzyme B12, ligands, equilibrium, kinetic studies, corrinoid derivatives

Aktuelle Kontaktadresse

LandÄgypten
OrtCairo
Universität/InstitutionAin Shams University
Institut/AbteilungFaculty of Science, Department of Chemistry

Gastgeber*innen während der Förderung

Prof. Dr. Rudi EldikInstitut für Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen
Beginn der ersten Förderung01.01.1999

Programm(e)

1997Humboldt-Forschungsstipendien-Programm

Publikationen (Auswahl)

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