Vieira, S. M. C., Kotsiris, S. G., Drewello, Thomas, Rego, C. A. and Birkett, P. R. (2008) Methylation of C-60 using the modified hot filament chemical vapour deposition method. In: 8th Biennial International Workshop on Fullerenes and Atomic Clusters (IWFAC 2007), St Petersburg, Russia, Jul 02-06, 2007. Published in: Fullerenes, Nanotubes, and Carbon Nanostructures, Vol.16 (No.5-6). pp. 404-411.

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Abstract

The methylation of C-60 was performed via a gas-phase reaction in a CH4/H-2 atmosphere using a modified hot filament chemical vapour deposition (HFCVD) method. Pressures were varied from 20-45 torr, substrate temperatures set at 690 degrees C and reaction times up to 15 minutes. High-resolution matrix-assisted laser desorption ionisation (MALDI) mass spectrometry was used to determine the synthetic route of the methylated products through accurate mass measurements. The analysis established the production of C60H18-2n(H,CH3)(n) (n=1-3). Collision-induced dissociation experiments confirmed a maximum of 18 ligands possible to the C-60 cage. The formation of carbon spheres with diameters up to 25 mu m on the surface of the tungsten filament subsequent to HFCVD is also reported.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	Q Science > QC Physics Q Science > QD Chemistry
Divisions:	Faculty of Science > Chemistry
Library of Congress Subject Headings (LCSH):	Buckminsterfullerene, Methylation, Chemical vapor deposition, Matrix-assisted laser desorption-ionization, Carbon
Journal or Publication Title:	Fullerenes, Nanotubes, and Carbon Nanostructures
Publisher:	Taylor & Francis Inc.
ISSN:	1536-383X
Date:	2008
Volume:	Vol.16
Number:	No.5-6
Number of Pages:	8
Page Range:	pp. 404-411
Identification Number:	10.1080/15363830802281708
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Description:	Special Issue: Proceedings of the 8th Biennial International Workshop “Fullerenes and Atomic Clusters”
Title of Event:	8th Biennial International Workshop on Fullerenes and Atomic Clusters (IWFAC 2007)
Type of Event:	Workshop
Location of Event:	St Petersburg, Russia
Date(s) of Event:	Jul 02-06, 2007
References:	1. Vieira, S.M.C., Birkett, P.R., and Rego, C.A. (2001) Hydrogenation of [60]fullerene using a novel chemical vapour modification (CVM) method. Chem. Phys. Lett., 347: 355–360. 2. Vieira, S.M.C., Kotsiris, S., Drewello, T., Birkett, P.R., and Rego, C.A. (2004) Functionalisation of [60]fullerene using a novel chemical vapour modification (CVM) method. Fullerenes, Nanotubes and Nanostruc., 12: 139–145. 3. Gan, B., Ahn, J., Zhang, Q., Yoon, S.F., Rusli, Huang, Q.F., Yang, H., Yu, M.-B., and Li, W.-Z. (2000) Branching carbon nanotubes deposited in HFCVD system. Diam. Rel. Mat., 9: 897–900. 4. Friedman, S.H., DeCamp, D.L., Sijbesma, R.P., Srdanov, G., Wudl, F., and Kenyon, G.L. (1993) Inhibition of the HIV-1 protease by fullerene derivatives: model building studies and experimental verification. J. Am. Chem. Soc., 115: 6506–6509. 5. Krusic, P.J., Wasserman, E., Keizer, P.N., Morton, J.M., and Preston, K.F. (1991) Radical reactions of C60. Science, 254: 1183–1185. 6. Bausch, J.W., Prakash,G.K.S.,Olah,G.A.,Tse,D.S.,Lorents,D.C.,Bae,Y.K., andMalhotra, R. (1991) Diamagnetic polyanions of the C60 and C70 fullerenes: preparation, 13C and 7Li NMR spectroscopic observation, and alkylation with methyl iodide to polymethylated fullerenes. J. Am. Chem. Soc., 113: 3205–3206. 7. Al-Matar, H., Sada, A.K.A., Avent, A.G., Fowler, P.W., Hitchcock, P.B., Rogers, K.M., and Taylor, R.J. (2002) Isolation and characterisation of symmetrical C60Me6, C60Me5Cl and C60Me5O2OH, together with unsymmetrical C60Me5O3H, C60Me5OOH, C60Me4PhO2OH, and C60Me12; fragmentation of methylfullerenols to C58. Chem. Soc., Perkin Trans., 2: 53–58. 8. Vasil’ev, Y.V., Khvostenko, O.G., Streletskii, A.V., Boltalina, O.V., Kotsiris, S.G., and Drewello, T. (2006) Electron transfer reactivity in matrix-assisted laser desorption/ionization (MALDI): Ionization energy, electron affinity and performance of the DCTB matrix within the thermochemical framework. J. Phys. Chem. A, 110: 5967–5972. 9. Harries, S.J., Weiner, A.M., and Perry, T.A. (1998) Measurement of stable species present during filament-assisted diamond growth. Appl. Phys. Lett., 53: 1605–1607. 10. Barrow, M.P., Feng, X.D., Wallace, J.I., Boltalina, O.V., Taylor, R., Derrick, P.J., and Drewello, T. (2000) Characterization of fullerenes and fullerene derivatives by nanospray. Chem. Phys. Lett., 330: 267–274. 11. Brown, T. Clipston, N.L., Simjee, N., Luftmann, H., Hungerbu¨ hler, H., and Drewello, T. (2001) Matrix-assisted laser desorption/ionization of amphiphilic fullerene derivatives. Inter J. of Mass Spect., 210: 249–263. 12. Rogner, I., Birkett, P.R., and Campbell, E.B. (1996) Hydrogenated and chlorinated fullerenes detected by ‘‘cooled’’ modified matrix-assisted laser desorption and ionisation mass spectroscopy (MALDI-MS). Int. J. of Mass and Ion Proc., 156: 103–108. 13. Vasil’ev, Y., Wallis, D., Nu¨ chter, M., Ondruschka, B., Lobach, A., and Drewello, T. (2000) From major to minor and back—A decisive assessment of C60H36 with respect to the Birch reduction of C60. Chem. Comm., 1233–1234. 14. Vasil’ev, Y.V., Absalimov, R.R., Nasibullaev, S.K., Lobach, A.S., and Drewello, T. (2001) Formation and characterization of long-lived negative molecular ions of C60H18. J. Phys. Chem. A, 105: 661–665. 15. Vasil’ev, Y.V., Kotsiris, S.G., Bashkin, I.O., Antonov, V.E., Moravsky, A.P., and Drewello, T. (2005) Bulk production of a strong covalently linked (C60Hx)2 dimer. J. Phys. Chem. B, 109: 11875–11879. 16. Mo¨der, M., Nu¨chter, M., Ondruschka, B., Czira, G., Vekey, K., Barrow, M.P., and Drewello, T. (2000) Unimolecular ion dissociation and laser-induced coalescence of hydrogenated fullerenes. Int. J. Mass Spectrom., 195: 599–607. 17. Sommers, M. and Smith, F.W. (1990) Activity of tungsten and rhenium filaments in CH4/H2 and C2H2/H2 mixtures: Importance for diamond CVD. J. Mater. Res., 5: 2433–2440.
URI:	http://wrap.warwick.ac.uk/id/eprint/29249

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