Rao, CNR and Pradeep, T and Seshadri, R and Nagarajan, R and Murthy, VN and Subbanna, GN and Souza, FD and Krishnan, N and Nagannagowda, GA and Suryaprakasha, NR and Khetrapal, CL and Bhat, SV (1992) Preparation, Characterization And Properties Of C-60 And C-70 - Spectroscopy, Structure, Anions, Interaction With Electron-Donors And Superconductivity. In: Indian Journal of Chemistry - Section A: Inorganic, Physical, Theoretical and Analytical Chemistry, 31 (5). F5-F16.
Full text not available from this repository. (Request a copy)Abstract
Preparation and characterization of the fullerenes, C60 and C70, are described in detail, including the design of the generators fabricated locally. The characterization techniques employed are UV-visible, IR, Raman and C-13 NMR spectroscopies, scanning as well as transmission electron microscopy and mass spectrometry. The electron energy level diagram of C60 as well as the one-electron reductions of C60 and C70 leading to various anions are discussed. Electronic absorption spectra of C60- and C60(2-) are reported. Phase transitions from the plastic to the crystalline states of C60 and C70 are examined. Based on a C-13 NMR study in a mixture of nematic liquid crystals, it has been demonstrated that C60 retains its extraordinary symmetry in solution phase as well. Interaction of C60 and C70 with strong electron-donor molecules has been investigated employing cyclic voltammetry. Superconductivity of K(x)C60 has been studied by non-resonant microwave absorption; Na(x)C60 as well as K(c)C70 are shown to be non-superconducting. Doping C60 with iodine does not make it superconducting. Interaction of C60 with SbCl5 and liquid Br2 gives rise to halogenated products.
| Item Type: | Journal Article |
|---|---|
| Publication: | Indian Journal of Chemistry - Section A: Inorganic, Physical, Theoretical and Analytical Chemistry |
| Publisher: | National Institute of Science Communication and Information Resources |
| Additional Information: | Copyright of this article belongs to National Institute of Science Communication and Information Resources. |
| Keywords: | Opposite Diamagnetic Anisotropies;Buckminsterfullerene. |
| Department/Centre: | Division of Chemical Sciences > Inorganic & Physical Chemistry Division of Chemical Sciences > Materials Research Centre Division of Chemical Sciences > Sophisticated Instruments Facility (Continued as NMR Research Centre) Division of Chemical Sciences > Solid State & Structural Chemistry Unit Division of Physical & Mathematical Sciences > Physics |
| Date Deposited: | 02 May 2011 04:53 |
| Last Modified: | 02 May 2011 04:53 |
| URI: | http://eprints.iisc.ac.in/id/eprint/37345 |
Actions (login required)
 |
View Item |
