VASS, Gábor
    teaching assistant

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Eötvös Loránd University  Department of General and Inorganic Chemistry  Pázmány Péter sétány 1/A  1117 - Budapest  Hungary      phone: (36-1) 209-0555/1611  fax: (36-1) 209-0602 e-mail:vassg@chem.elte.hu

• M.Sc. Chemistry, Eötvös Loránd University, 1991
• Research Fellow, Institute of Isotopes, Hungarian Academy of Science, 1991-93
• Research Fellow, Eötvös Loránd University 1993-1995
• Teaching Assistant, Eötvös Loránd University, 1995-
• PhD, Eötvös Loránd University, 2000

Research at a Glance

• synthetic organometallic chemistry: inert atmospheric techniques to prepare main group and transition metal organics

 
• photoelectron spectroscopy (PES): instrument development, investigation of the electronic structure of organometallic compounds, gas phase reactions, in situ measurement of transient species, investigation of the relationship between catalytic activity and the PES of organometallic catalyzers

 
• metal-organic chemical vapor deposition (MO-CVD): deposition of hard coatings (SiC, ZrB₂, Cr_xC_y etc) in thermal and plasma-enhanced reactors from organometallic precursors.

Teaching Activities

 
• Inorganic and Organometallic Synthetic Laboratory Course
• Attainment target: Preparation of inorganic and organometallic compounds. Synthetic principles and methods.
• Detailed programme: Electrochemical reactions: cathodic reduction. Study of molecular oxygen fixation. Synthesis of metal carbonyls.

Reduction by using dissolving metal. Synthesis of organometallic compounds by using anionic alkyating agent. Transition metal ?sandwich? compounds. Use of  organometallic reagent in organic synthesis. Preparation and reactions of  transition metal organyls. Transition metal catalysis. Chemical Vapour Deposition. Organometallic photochemistry. Reactions in MW field.
 
• General Chemistry Laboratory Course
• izébizé az elsõs laborrólizébizé az elsõs laborról
 
• Inorganic Chemistry Laboratory Course
• izébizé az elsõs laborról

 

• Inorganic and Organometallic Special Laboratory Practice
• Attainment target: To gain experience in preparations and manipulations carried out at low temperatures, in high vacuum and inert atmosphere (Schlenk technique). Sample preparation of air sensitive compounds by use of dry box. Structural investigations  of the syntesized compounds by multi-nuclear NMR, FT-IR and UPS methods.
• Detailed programme: Synthesis of main group and transition metal organic derivatives. Recording and interpretation of their FT-IR, multi nuclear (1H, 13C, 15N, 17O, 29Si) NMR and UPS spectra. MOCVD of hard coatings. Imvestigation of reactive intermediates. Preparation of mixed oxides and complexes as precursors for metallic and superconducting materials. Determinations of organic and inorganic contaminants in air, water and soil samples.
 

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• Publications

• Papers in referred journals

1. Cs. Vértes, G. Vass, E. Kuzmann, K. Romhányi, M. Lakatos-Varsányi, A. Vértes: Conversion Electron Mössbauer and XPS Study on the Effect of Polishing of a Stainless Steel Sample; J. Radioanal. Nucl. Chem., Letters 186 (6) 447-454 (1994).
2. Zoltán Zsoldos, Gábor Vass, Genmin Lu, László Guczi: XPS study on the effects of treatments on Pt2+ and Co2+ exchanged into NaY zeolite; Applied Surface Science 78 (1994) 467-475.
3. Attila Nagy, László Szepes, Gábor Vass and László Zanathy: He(I) Photoelectron Spetroscopy Study of Half- and Bent Sandwich Tetrahydroborates; Journal of Organomet. Chem., 485 (1995) 215-218.
4. K. Hankó, G. Vass and L. Szepes: Arene-transition metal complexes as precursors of hard coatings prepared by the chemical vapour deposition technique; Journal of Organomet. Chem., 492 (1995) 235-239.
5. Gábor Vass, Bálint Sztáray and László Szepes: Photoelectron Spectroscopy of Mono- and Binuclear Iron and Chromium Cyclooctatetraene Complexes, Journal of Organomet. Chem., 560 (1998) 7–13.
6. István Csonka, Gábor Vass, László Szepes, Dénes Szabó, István Kapovits: He(I)/He(II) ultraviolet photoelectron spectroscopic studies on organosulphur compounds with emphasis on the sulphur–oxygen interactions, J. Mol. Struct (THEOCHEM),  455 (1998) 141–159.
7. Szepes, L., Kotschy, A., Vass, G.: Updated inorganic and organometallic laboratory course for junior chemistry students, Chemistry Education: Research and Practice in Europe, A Special Publication
8. György Tarczay, Gábor Vass, Gábor Magyarfalvi and László Szepes: He(I) Photoelectron Spectroscopy and Electronic Structure of Alkyllithium Clusters,
 
•  Conference abstracts

1. Guczi, G. Vass, Z. Zsoldos and Genmin Lu:

XPS Study of Surface Transformations on Pt and Co Containing NaY-zeolites After Different Treatments, XXIIth International Vacuum Congress – VIIIth International Conference on solid surfaces 12-16 october 1992. The Hague, The Netherland.
2. D. Knausz, L. Szepes, G. Vass, R. Szalay, M. Mörtl, K. Ujszászy:

Correlation Between Structure and Spectrosc. Behaviour of Silylcarbaminates, Xth FECHEM conference on Organometallic Chemistry 1993, Crete, Greece.
3. Attila Nagy, László Zanathy, Gábor Vass and László Szepes:

He(I) Photoelectron Spectroscopy of Transition Metal Cyclopentadienyl Borohydrides, Xth FECHEM conference on Organometallic Chemistry 1993, Crete, Greece.
4. K. Hankó, G. Vass and L. Szepes:

Arene-transition metal complexes as precursors of hard coatings prepared by CVD-technique; 1st JOM Conference, München, 1993.
5. Vass Gábor, Sztáray Bálint, Szepes László:

Az (1,3)-ciklopentdienil-króm-(1,3,5,7)ciklooktatetraén és az  (1,3,5,7)-ciklooktatetraén - bisz((1,3)-ciklopentadienil-króm elektronszerkezetének vizsgálata He(I) ultraibolya fotoelektron-spektroszkópiával, Magyar Színképelemzõ Vándorgyûlés, Paks, 1995.
6. Bálint Sztáray, Gábor Vass and László Szepes:

Gas Phase Photoelectron Spectroscopic and Theoretical Studies on Transition Metal Cyclooctatetraene Complexes, XIth FECHEM Conference on Organometallic Chemistry, Parma, 1995.
7. Csonka István, Frigyes Dávid, Vass Gábor, Kapovits István, Szepes László:

He(II) sugárforrással szerzett tapasztalatok szerves kénvegyületek UV fotoelektron-spektroszkópiás vizsgálatánál, 39. Magyar Spektrokémiai Vándorgyûlés, Mosonmagyaróvár, 1996.
8. Bálint Sztáray, Gábor Vass, László Szepes:

The geometry and electronic structure of CpCoCOT; 13rd Hungarian Conference in Spectrochemistry, Debrecen, 1997.
9. Vass Gábor, Sztáray Bálint, Szepes László:

Átmenetifémek ciklooktatetraén komplexeinek szerkezet- és kötésviszonyai, MTA Szervetlen és fémorganikus munkabizottság, 1998.
10. Gábor Vass, Bálint Sztáray and László Szepes:

Photoelectron Spectroscopy of  Mono- and Binuclear Iron, Molybdenum and Tungsten Cyclooctatetraene Complexes, XVIIIth International Conference on Organometallic Chemistry, München, 1998.
 

• University textbooks

1. Kotschy A., Mörtl M., Szalay R., Szepes L., Vass G., Szervetlen és fémorganikus kémiai gyakorlatok, ELTE Általános és Szervetlen Kémiai Tanszék, 1999

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