Gateway for:

Member Countries

Fullerene-Like Metal Derivatives

#2511


Production and Investigation of Composition, Structure and Properties of Fullerene-Like Structures' Metal Derivatives

Tech Area / Field

  • CHE-SYN/Basic and Synthetic Chemistry/Chemistry

Status
8 Project completed

Registration date
21.05.2002

Completion date
25.07.2007

Senior Project Manager
Endrullat B

Leading Institute
VNIIEF, Russia, N. Novgorod reg., Sarov

Supporting institutes

  • Razuvaev Institute of Organometallic Chemistry, Russia, N. Novgorod reg., N. Novgorod

Collaborators

  • Durham University, UK, Durham\nUniversity of Newcastle, UK, Newcastle upon Tyne\nJustus-Liebig-Universität Giessen, Germany, Giessen

Project summary

The invention of fullerenes in 1985 [1] that was awarded the Nobel Prize in chemistry in 1996 is one of the most important scientific developments of the last century. Fullerenes and nanotubes, which are of a high fundamental value for the development of modern science and views on the materials' hierarchy on the Earth and in Space, are now becoming widely used in various branches of science and technology. Fullerene-like-material-based metal complexes are of especial interest. The variety of these compounds can be pided into two large groups: endohedral complexes where the metal atom is inside a fullerene structure, and exohedral ones with the metal atom outside. Both classes attract researches due to their unique chemical and physical properties [2-5]. These compounds' superconductivity, ferroelectric and magnetic properties make them very promising to obtain materials for microelectronics (facilitation of integrated chips fabrication, simplicity and purity of the nanotechnology and other advantages). Metal-filled nanotubes and nanowires that possess very low edge electron work function are used for cold cathodes. They can be used to make flat economy-type displays. These structures' special chemical properties provide an opportunity to synthesize a variety of new compounds. Fullerene-based metal complexes are very promising for oxygen sensors, for cell investigations in molecular biology, and for pharmacology. But the progress that can be achieved in this area and the potential to use these compounds for scientific and applied purposes is, in the first place, determined by the development of the synthesis and refinement techniques.

Thus, the goal of this study is to synthesize new metal derivatives of fullerene-like structures, and to investigate their composition, structure and properties.

At present the Project researchers from IMOC RAN carry on studies to improve fullerene and nanotube synthesis technology [6]. Also, there are theoretical evaluations and preliminary experimental developments on the methods of synthesizing fullerene-like structures' metal derivatives, for instance, a unique method to synthesize metal-filled nanotubes from metal organic compound thermal decay, that has no analogue so far [7, 8], is under development. VNIIEF's Project researchers possess a unique experimental base and expertise in identification and investigation of these and other compounds' properties [9-11], and the use of ion radiation sources [12]. This will make the basis for the successful implementation of this Project.

To achieve this goal, we suggest solving the following tasks:

1. To synthesize metal derivatives of fullerene-like structures:

1.1. to fabricate metal-filled nanotubes (nanowires) by the thermal decay of metal organic compounds;
1.2. to synthesize endohedral complexes of С60 fullerene by ion implantation.


2. To develop metal complex separation techniques.

3. To develop and improve the techniques to analyze the composition, structure and properties of fullerene-like structures' metal derivatives, including mass-spectrometry, preparative liquid chromatography, electronic paramagnetic resonance, X-ray-fluorescence and X-ray structural analysis, combination scattering spectroscopy, high-resolution electron microscopy.

The expected results and the scientific value of this Project will be to create a wider range of reagents for chemistry and active materials for various physical processes. Additionally, this study will develop and improve the methods for the analysis of metal complexes of fullerene-like structures, generate laboratory specimens of compounds and materials to be used in collaborative studies with other research centers.

The project study will use the theoretical results in molecule-dynamic simulation of nanowire and endohedral complexes formation dynamics, and their chemical and physical properties.

Under this Project, collaborators will take part in joint studies, discussion of results and evaluation of potential applications of these compounds. The Project study will help switch the efforts of weapons scientists and engineers to general scientific problems and investigation of new materials.

This Project will be implemented at the Russian Federal Nuclear Center VNIIEF (Sarov, Nizhny Novgorod region) and at the G.A.Rasuvaev Institute of Metalorganic Chemistry RAN (Nizhny Novgorod).

References:

1. Kroto H.W. et al. C60: Buckminsterfullerene // Nature. 1985. V.318. P. 162.

2. Bethune D.S. et al. // Z. Phys., D. 1993. V.26. P.153; Nature (London). 1993. V.366. P.123.

3. A.V.Eletsky. et. al. Fullerenes and carbon structures // UFN. 1995. V.165. N9. P.977; Endohedral structures // UFN. 2000. V. 170. N2. P.113.

4. Nagase S. et al. // Chem. Phys. Lett. 1993. V.201 P.475.

5. Shinohara H. // Sci. Rep. Res. Instr. Tohoku University. 1997. A44. P.47.

6. Kaverin B.S. et al. High-efficiency set for direct current arc synthesis of fullerene containing soot // IWFAC’1993. Abstr. 1993. St. Petersburg. Russia. P. 78; High-efficiency set for the synthesis of metal-containing and fullerene structures // Proceedings of the Conference: “Structures and properties of crystalline and amorphous materials”. 1996. Nizhny Novgorod. 12-14 March. С. 172; The optimization of the pure C60 and C70 preparation // IWFAC’97. Abstr. 1997. St. Petersburg. P. 61.

7. B.G.Gribov, G.A.Domrachev, B.S.Kaverin et. al. Film and coating precipitation by the decomposition of metal organic compounds. Moscow, Nauka, 1981. 322p. p.160-166.

8. Gromov P.I., Domrachev G.A., Domracheva E.G., Kaverin B.S. // Mol.Mat. 1996. V.8. P.5.

9. Zhogova K.B. et al. Thermodynamics of allotropic modification of carbon: synthetic diamond, graphite, fullerene C60 and carbine // Thermochim. Acta. 1997. V.299. P. 127; Thermodynamic characteristics of physical transitions in fullerenes C60 and C70 // Mol. Mat. 1998. V.11. P. 27; Thermodynamic properties of 1D and 2D polymerized fullerite C60 between 0 and 340 K at standard pressure // Thermochim. Acta. 2000. V.364. P. 23.

10. A.V.Stengatch. et. al. Ittrium ditritide solid phase change during radiogenic helium formations // Proceedings of the X International Meeting on “Radiative solid state physics ”, Sevastopol, July, 3-8, 2000, p.367.

11. Morovov A.P. et al. Wide-band monocromators in X-ray fluorescent analysis with primary radiation complete external reflection // Zavodskaya laboratoriya. 1997. V.63. P. 26; Advances in X-ray analysis. 1997. V.41. P. 822; Sin-films sorbents for X-ray-RF analysis // Advances in X-ray analysis. 1998. V.42. P.119.

12. A.V.Almazov. et. al. A self-focusing high-frequency ion source // Pribory i Technika Experimenta. 1964. N5. P.43.


Back

The International Science and Technology Center (ISTC) is an intergovernmental organization connecting scientists from Kazakhstan, Armenia, Tajikistan, Kyrgyzstan, and Georgia with their peers and research organizations in the EU, Japan, Republic of Korea, Norway and the United States.

 

ISTC facilitates international science projects and assists the global scientific and business community to source and engage with CIS and Georgian institutes that develop or possess an excellence of scientific know-how.

Promotional Material

Значимы проект

See ISTC's new Promotional video view