Faculty of Natural and Agricultural Sciences

1. CONTACT DETAIL:

• Tel +27-(0)51-401 2574
• Tel (secretary): +27-(0)51-401 2348
• Email: steylg@ufs.ac.za
• Fax: +27-(0)51-444 3648
• Postal Address: Dept. of Chemistry (Int Box 48), Univ. of the Free State, PO Box 339, Bloemfontein 9300, South Africa.
• Physical Address: Room 03, Department of Chemistry, Univ. of the Free State, Nelson Mandela Drive, Bloemfontein, South Africa.

2. QUALIFICATIONS AND RATING AS SCIENTIST:

• Qualifications:
  • Ph.D. (Inorganic Chemistry): 2004 (Supervisor: A Roodt), Rand Afrikaans University (RAU), South Africa.
  • M.Sc. (Geohydrology): 2009, University of the Free State
  • M.Sc. (Applied Mathematics): 2004 Cum Laude, University of the Free State.
  • M.Sc. (Inorganic Chemistry): 2000 Cum Laude, University of the Free State.
  • B.Sc.Hons. (Chemistry): 1998, University of the Free State.
  • B.Sc.Hons. (Applied Mathematics): 1997, University of the Free State.
  • B.Sc. (Applied Mathematics and Chemistry): 1996, University of the Free State.
     
• Rating as a Scientist
  • Profesional Natural Scientist (PrSciNat) Chemistry
  • NRF Evaluated Researcher (Y2) (2009).
  • South African National Research Foundation: Innovation Fund Recipient (2005-2006).
  • South African National Research Foundation: Ph.D. (Chem.), M.Sc. (Chem.), B.Sc. Hons. (Chem. and Appl. Math.)

3. RESEARCH & SCIENCE MANAGEMENT:

• General Reviewer for Scientific Journals:
  • South African Journal of Chemistry (Theoretical and Inorganic Chemistry)
  • Acta Crystallographica C and E
  • Journal of Environmental Earth Sciences 
  • Environmental Earth Science
  • Journal of Contaminant Hydrology
     
• Research visits abroad:
  • Prof. P. Comba, Heidelberg, Germany (2001).
  • Prof. T. Cundari, Denton, Texas, USA (2003/2005).
  • Prof. R. Alberto, Zurich, Switzerland (2008).
  • USGS, San Diego, California, USA (2009).
     
• Societies/ Conferences:
  • South African Chemical Institute, Member, 1996-
  • South African Amateur Astronomical Society, 2004-7
  • South African Council for Natural Scientific Professions, 2009-
  • South African Groundwater Division, 2009-
  • Institute for Municipal Engineers of South Africa, 2009-
  • American Chemical Society, 2007-

4. CONFERENCES/INVITED LECTURES/PRESENTATIONS:

• 2003: Invited Speaker at the European Crystallographic Meeting (ECM2003), “Mechanistic Study Of Five Coordinated Vaska-Type Rhodium(I) Tropolonato Complexes”
• 2003: Lecture at the SACI/SASOL One Day Meeting in Catalysis, Northern Universities, “Rhodium Tropolonato Complexes, A Crystallographic and Theoretical Study”
• 2006: Invited Speaker at the INDABA 6
• 2006: Invited Speaker at the 37th International Conference of Coordination Chemistry
• 2007: CANSA Copper complexes in Radiopharmacy

Book Chapters

1. G. Steyl, A. Roodt (2008) Tropolone As Neutral Compound And Ligand In Palladium Complexes in Boeyens, Jan C.A.; Ogilvie, John F. (Eds.) Models, Mysteries, and Magic of Molecules ISBN: 978-1-4020-5940-7 (pp. 325-340). Springer: PO Box 17, 3300 AA Dordrecht, The Netherlands.

Long Papers

1. Structure and solution behaviour of rhodium(I) Vaska-type complexes for correlation of steric and electronic properties of tertiary phosphine ligands, A. Roodt, S. Otto, G. Steyl, Coordination Chemistry Reviews (2003) 245(1-2), 121-137.
2. Calculation of the enthalpies of formation for transition metal complexes, T.R. Cundari, H.A.R. Leza, T. Grimes, G. Steyl, A. Waters, A.K. Wilson, Chemical Physics Letters (2005). 401(1-3) 1, 58-61.
3. Rhodium hydride formation in the presence of a bulky monophosphite ligand: a spectroscopic and solid-state investigation, R. Crous, M. Datt, D. Foster, L. Bennie, C. Steenkamp, J. Huyser, L. Kirsten, G. Steyl, A. Roodt, Dalton Trans. 2005, (6), 1108-1116.
4. Solid-state and theoretical structural study on trans-[ReO2(Eten)2]CF3SO3·LiCF3SO3 (Eten = N-ethyl ethylenediamine), H.P. Engelbrecht, L. Den Drijver, G. Steyl and A. Roodt, Comptes Rendus Chimie (2005). 8 (9-10), 1660-1669.
5. A theoretical study on the behaviour of a neutral 2-(amino)-1-cyclopentene-1-dithiocarboxylate compound: Rotamers and hydrogen transfer effects, G. Steyl, Chemical Physics Letters (2006). 418, 59-64.
6. Molecular and Crystallographic Study of Tropolone Type Derivatives by ab inition Hartree-Fock Calculations, G. Steyl, A. Roodt, S. Afr. J. Chem. (2006). 21-27.
7. Quantitative Computational Thermochemistry of Transition Metal Species, N.J. DeYonker, K.A. Peterson, G. Steyl, A.K. Wilson, T.R. Cundari, J. Phys. Chem. A (2007) 111(44), 11269-11277.
8. Synthesis, structure and theoretical study of two rhodium(I) complexes [Rh(TropNMe)(CO)(PPh3)] and [Rh(Trop)(CO)(PPh3)] · Acetone, G. Steyl, Polyhedron (2007) 26(18), 5324-5330.
9. Methods To Assess The Impacts Of Tailings Dams On The Groundwater System In South Africa, I. Dennis, J. Pretorius, P. van Deventer, G. Steyl, Journal of Mining and Metallurgy, 44 A (1) (2009) 59 - 66.
10. Review of coastal-area aquifers in Africa, G. Steyl, I. Dennis, Hydrogeology Journal (2010) 18: 217–225.
11. Effect of fracture zone on DNAPL transport and dispersion: a numerical approach, I. Dennis, J. Pretorius, G. Steyl, Environ. Earth Sci., (2010) DOI: 10.1007/s12665-010-0468-8.

Short Papers

1. Carbonyl (ferrocenyldiphenylphosphine) (tropolonato)rhodium(I), G. Steyl, S. Otto, A. Roodt, Acta Cryst. (2001). E57, m352-m354.
2. 3,7-Dibromohinokitiol: a redetermination, G. Steyl, A. Roodt, Acta Cryst. (2003) C59, o525-o527.
3. Carbonyl(5-nitrotropolonato)(triphenylphosphine) rhodium(I), G. Steyl, A. Roodt, Acta Cryst. (2004). C60, m324-m326.
4. Triferrocenylphosphine oxide monohydrate, A. Muller, G. Steyl, A. Roodt, Acta Cryst. (2004). C60, m386-m388.
5. Dicarbonyl(tropolonato)rhodium(I), a redetermination, G. Steyl, G.J. Kruger, A. Roodt, Acta Cryst. (2004) C60, m473-m475.
6. Carbonyl(triphenylarsine)(tropolonato)rhodium(I), G. Steyl, A. Roodt, Acta Cryst. (2005). E61, m1212-m1214.
7. 1,2-Dibenzoyl-3,4-bis(4-methoxyphenyl)cyclo-butane, G. Steyl, T. Hill, A. Roodt, Acta Cryst. (2005). E61, o1978-o1980.
8. Bis(tropolonato)palladium(II), G. Steyl, Acta Cryst. (2005). E61, m1860-m1862.
9. (Tricyclohexylphosphine)bis(tropolonato) palladium(II), G. Steyl, Acta Cryst. (2006). E62, m650-m652.
10. Chloro(triphenylphosphine)(tropolonato) palladium(II), G. Steyl, Acta Cryst. (2006). E62, m974-m976.trans-Bromocarbonylbis(triphenylphosphine) rhodium, G. Steyl, L. Kirsten, A. Muller, A. Roodt, Acta Cryst. (2006). E62, m1127-m1129.
11. trans-Dichlorobis(triphenylphosphine) palladium(II) dichloroethane solvate, G. Steyl, Acta Cryst. (2006). E62, m1324-m1325.
12. trans-Carbonylchlorobis[diphenyl(4-tolyl) phosphine] rhodium(I), L. Kirsten, G. Steyl, A. Roodt, Acta Cryst. (2006). E62, m1702-m1704.
13. trans-Dichlorobis[diphenyl(p-tolyl)phosphine] palladium(II), G. Steyl, L. Kirsten, A. Roodt, Acta Cryst. (2006). E62, m1705-m1707.
14. Chlorobis[diphenyl(p-tolyl)phosphine] copper(I), G. Steyl, Acta Cryst. (2006). E62, m3277-m3278.
15. trans-Carbonylchlorobis[(2-naphthyloxy) diphenylphosphine]rhodium(I), L. Kirsten, E. Steyl, J.H. van der Westhuizen, G. Steyl, Acta Cryst. (2007). E63, m20-m22.
16. Carbonyl(3,7-dichlorotropolonato) (triphenylphosphine)rhodium(I), G. Steyl, Acta Cryst. (2007). E63, m23-m25.
17. Tris(1-naphthyl) phosphate, L. Kirsten, G. Steyl, A. Roodt, Acta Cryst. (2007). E63, o2828-o2830.
18. Tetraaqualithium(I) bis(tropolonato)lithate(I), G. Steyl, Acta Cryst. (2007). E63, m2343.
19. Tris[diphenyl(4-tolyl)phosphane]-di-iodido-dicopper(I), G. Steyl, Acta Cryst. (2007). E63, m2522.
20. Chlorobis[diphenyl(p-tolyl)phosphine] copper(I), G. Steyl, Acta Cryst. (2006). E62, m3277-m3278.
21. Tetraethylammonium bromidotricarbonyl[3,5,7-tribromotropolonato-O,O’]rhenate(I), M. Schutte, H.G. Visser, G. Steyl, Acta Cryst. (2007). E63, m3195-m3196.
22. (Diphenylmethoxyphosphane-P)(diphenylphosphanito-P)(3,5,7-tribromotropolonato-O,O’)palladium(II) methanol solvate, G. Steyl, Acta Cryst. (2007). E63, m2613-m2614.
23. 2-(4-Flouroanilino)tropone, G. Steyl, Acta Cryst. (2007). E63, o4353-o4353.
24. Chloridobis[2-(4-fluoroanilino)troponato-N,O](triphenylphosphine-P)rhodium(III), G. Steyl, Acta Cryst. (2007). E63, m2968-m2969.
25. Tetrakis(1,1,1-trifluoroacetylacetonato-O,O) zirconium(IV) toluene solvate, M. Steyn, A. Roodt, G. Steyl, Acta Cryst. (2008). E64, m827.
26. Dicarbonyl[2-hydroxy-3,5,7-tris- (morpholinomethyl)cyclohepta-2,4,6-trienonato-O,O]rhodium(I), T. N. Hill, G. Steyl, Acta Cryst. (2008). E64, m827.
27. (3,5,7-Tribromotropolonato-O,O)tris- (triphenylphosphine-P)silver(I), G. Steyl, T. N. Hill, Acta Cryst. (2009). E65, m191.
28. Dibromidobis(triphenylarsine)palladium(II). L. Kirsten, G. Steyl, Acta Cryst. (2009). E65, m218.
29. Trans-Dibromidobis tris(4-chlorophenyl)phosphine palladium(II). L. Kirsten, G. Steyl Acta Cryst. (2009). E65, m1565.
30. trans-Dibromidobis diphenyl(p-tolyl)phosphine palladium(II). L. Kirsten, G. Steyl, A. Roodt, Acta Cryst. (2009). E65, m1564.
31. trans-Dibromidobis(tri-p-tolylarsine)palladium(II). L. Kirsten, G. Steyl, A. Roodt, Acta Cryst. (2009). E65, m1449.
32. Bis tris(4-fluorophenyl)phosphine-kappa-P-(tropolonato-kappa-O-2,O)copper(I). G. Steyl, Acta Cryst. (2009). E65, m448.
33. Nitratotris(triphenylphosphine)copper(I) methanol solvate. G. Steyl, Acta Cryst. (2009). E65, m272.
34. (3,5,7-Tribromotropolonato-kappa-O-2,O)tris(triphenylphosphine-kappa-P)silver(I). G. Steyl, T. N. Hill, Acta Cryst. (2009). E65, m191.
35. Bis(triphenylphosphine-kappa P)(tropolonato-kappa O-2,O )silver(I) dichloromethane solvate. Steyl, G. and T. N. Hill, Acta Cryst. (2009). E65, m233.
36. Carbonyl 4-(2,3-dimethylphenylamino)pent-3-en-2-onato-kappa-N-2,O (triphenylphosphine-kappa-P)rhodium(I). G.J.S. Venter, G. Steyl, A. Roodt, Acta Cryst. (2009). E65, m1321.
37. Carbonyl 4-(2,6-dimethylphenylamino)pent-3-en-2-onato-kappa-N-2,O (triphenylphosphine-kappa-P)rhodium(I) acetone hemisolvate. G.J.S. Venter, G. Steyl, A. Roodt, Acta Cryst. (2009). E65, m1606.
38. [N,N-Bis(4-chlorophenyl)pentane-2,4-diiminato]dicarbonylrhodium(I), T.N. Hill, G. Steyl, Acta Cryst. (2010). E66, m205.

Projects - Research and Consultation

1. SASOL – Synthetic Fuels – Technical Report on Hydroformylation Process (2004).
2. NECSA – Nuclear Fuels – Technical Report on Zirconium and Hafnium (2007 – 2009).
3. Project coordinator and financial manager – Field investigations to study the fate and transport of light non-aqueous phase liquids (LNAPLs) in groundwater, WRC KSA 1 Water Resource Management Project No. (2007 - 2010).
4. Project coordinator and financial manager – Measurement of the Bulk Flow and Transport Characteristics of Selected Fractured Rock Aquifer Systems in South Africa, WRC KSA 5 Water Centered Knowledge Project No. K5/11760(2007 - 2010)
5. SASOL – Underground Coal Gasification Process – Hydrogeological Investigation (2008 – 2009).
6. University of the Free State – Okavango Project – Hydrochemical Analysis (2009).
7. SASOL – Coal Mine – Hydrogeological Investigation (2008 – 2009).
8. University of the Free State – Fractured Rock Project – Hydrochemical modeling (2008).
9. Water Research Commission – Surface Water and Groundwater Interaction (2008 – 2009).
10. Department of Water Affairs – Artificial Neural Network Prediction of Surface Water and Groundwater Interaction (2008 – 2009).
11. Project leader – Sustainable Salt Sinks: Phase II ESKOM and SASOL (2009 – 2011).
12. Remediation and Delineation Specialist – Fertilizer and Explosives Plants, SASOL (Industrial) (2009 – 2010).
13. Researcher – Organic and Pesticide Contamination at Building Sites, West Australia, Australia, VDM (2009 – 2010).
14. Researcher – AMD/ARD leaching, surface water and groundwater quality at Mine Facilities, Northern Territories, Australia, VDM (2009 – 2010).
15. Project Coordinator – Surface Water and Groundwater Interactions in the Modder River a joint WRC and DWA Project (Scoping and Drilling Phase) (2009 – 2010).
16. Researcher and Project Coordinator – SASOL Contaminant Site Investigation North West Region (2010).

• Computational Chemistry and Catalysis

1. Environmental aquatic chemistry,
2. Hydrogeological Modeling,
3. Molecular Modeling with Ab Initio and DFT level of theories,
4. Organometallic Chemistry (Rh, Pd, Pt, Ni),
5. Organic Chemistry (Ligand Synthesis),
6. Reaction Mechanisms and Kinetics,
7. X-Ray Crystallography,
8. Multi-Nuclear NMR, IR, UV/Vis Spectroscopy.

1. Applied Mathematics, 2nd Year, Computational Mathematics with Matlab (An Introduction)
2. Chemistry, 1st Year, Chemistry in Life Sciences
3. Chemistry, 4th Year, Crystallographic Database (CSD) Application in Inorganic Chemistry
4. Chemistry, 4th Year, Group Theory and Symmetry Applications in Inorganic Chemistry
5. Groundwater Modelling
6. Geohydrochemistry
7. Aquifer Mechanics
8. Chemistry, 4th Year, Group Theory for Chemists