Characterization, XPS and Toxicological Study of Organothallium (III) Compounds with Schiff Base Ligands

Gyanendra Kumar Gaur, Shekhar Srivastava

Scientific Officer, Forensic Science Laboratory, Gwalior, India.

DOI: 10.4236/csta.2012.13018                

Abstract

Many Organothallium Compounds have been used in medicine, industry and antibacterial activity. Optical properties are among the most fascinating and useful properties of many complexes and have been extensively studied using a variety of optical spectroscopic techniques. A basic understanding of the optical properties and related spectroscopic techniques is essential for characterization about semiconductors, insulators or metal. Optical properties are related to other properties and functionalities (e.g. electronic, magnetic, and thermal) that are of fundamental importance to many technological applications, such as energy conversion, chemical analysis, biomedicine, opto-electronics, communication, and radiation detection. The fundamental importance of Thallium is the ability to accept electrons due to empty d-orbitals and thus establish additional bonds (σ bond and π bond) in chemistry. The Thallium metal, which has outer electronic configuration 6 s², 6 p1 shows oxidation states of Thallium (III) and Thallium (I). This research paper explains that Thallium (III) and Thallium (I) accepts lone pairs from various bi-dentate tetra-dentate Schiff base ligands due to p-orbital and vacant d-orbital. This research paper explains the Characterization, XPS and Toxicological Study of Or- ganothallium (III) Compounds with Schiff base ligands by physiochemical technique. X-Ray photoelectron spectrogra- phy (XPS) study of Thallium (III) complexes with Schiff Base ligands also reported in this paper. XPS study shows a single symmetrical peak without any splitting in photoelectron peak, which confirms diamagnetic nature of all prepared molecular adducts. All prepared complexes with Schiff base ligands show toxicological effect.

Keywords

Oxidation; Ligand; Diamagnetic; Organothallium Compound; Molecular Adducts

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	H. E. Podall and H. Shapire, “The Organmetallic Chemistry of the Transition Metals,” Wiley, Chichester, 1960.
[2]	C. C. Hant and J. R. Doyle, “Synthesis of Cyclopentadienide Derivatives,” Inorganic and Nuclear Chemistry Letters, Vol. 2, No. 10, 1966, pp. 283-288. doi:10.1016/0020-1650(66)80043-0
[3]	A. N. Nesmeyanov, R. B. Materikova, N. S. Kochetkova and R. V. Luk’yanova, “Preparation of Diphenylnickel with Cyclopentadienylthallium,” Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science, Vol. 18, No. 4, 1969, p. 896.
[4]	R. B. King and M. B. Bisnette, “Initial Examples of the Synthesis of Cp*-Metal Complexes,” Journal of Organometallic Chemistry, Vol. 8, 1967, pp. 287-297.
[5]	C. Seamus, X. G. Ji, I. C. Douqlas and P. Michael, “Process for the Production of Ultra Pure Metals from Oxide and Their Cold Rolling to Ultra Thin Foils for Use as Particle Accelerator Targets and Reference Materials,” Special Issue of Nuclear Instruments and Methods in Physics Research, 2000. http://publications.jrc.ec.europa.eu/repository/handle/111111111/11716
[6]	R. Detzer, “Hochreine Metalle Durch Elektroraffination in Metallorganischen Komplexsalzschmelzen,” Chemie Ingenieur Technik, Vol. 36, No. 6, 1964, pp. 616-637. doi:10.1002/cite.330360606
[7]	M. Antler, “Materials, Coatings and Platings, in Electrical Contacts: Principles and Applications,” Marcel Dekker, New York, 1999.
[8]	S. Samson and G. R. Stephenson, “Pentacarbonyliron,” In: L. Paquette, Ed., Encyclopedia of Reagents for Organic Synthesis, John Wiley & Sons, New York, 2004.
[9]	R. Hoff and R. T. Mathers, “Handbook of Transition Metal Polymerization Catalysts,” John Wiley & Sons, New York, 2010.
[10]	G. J. P. Britovsek, V. C. Gibson and D. F. Wass, “The Search for New-Generation Olefin Polymerization Catalysts: Life beyond Metallocenes,” Angewandte Chemie International Edition, Vol. 38, No. 4, 1999, pp. 428-447. doi:10.1002/(SICI)1521-3773(19990215)38:4<428::AID-ANIE428>3.0.CO;2-3
[11]	M. Bochmann and I. Organometallics, “Complexes with Transition Metal-Carbon σ-Bonds,” Oxford University Press, New York, 1994.
[12]	T. N. Srivastava and K. K. Bajpai, Journal of Organometallic Chemistry, Vol. 31, No. 1, 1971, pp. 1-3. doi:10.1016/s0022-328x(00)87457-4
[13]	S. Srivastava, “ESCA Studies of Metal Complexes,” Applied Spectroscopy Reviews, Vol. 22, No. 4, 1986, pp. 401-535. doi:10.1080/05704928608060441
[14]	F. Challenger and B. Parker, “CXCIX—A Method for the Preparation of Some New Organo-Thallium Halides,” Journal of the Chemical Society, 1931, pp. 1462-1467. doi:10.1039/jr9310001462
[15]	F. R. Bean and J. R. Johnson, “Derivatives of Phenylboric Acid, Their Preparation and Action upon Bacteria. II. Hydroxyphenylboric Acids,” Journal of the Chemical Society, Vol. 54, No. 11, 1932, pp. 4415-4425. doi:10.1021/ja01350a045