Dear Francois. I did a quick non-exhaustive search of ICSD for pure C60, and posted the results on https://neutronoptics.com/downloads/C60-icsd.jpg This includes claims of tetragonal and orthorhombic structures. You can search Google with the paper titles to find the references if you don't have access to ICSD :-) The old neutron powder work I previously referred to from memory was Nature (1991) 353, 147-149 <https://www.nature.com/articles/353147a0> *Crystal structure and bonding of ordered C60* David, W.I.F.;Ibberson, R.M.;Matthewman, J.C.;Prassides, K.;Dennis, T.J.S.;Hare, J.P.;Kroto, H.W.;Taylor, R.;Walton, D.R.M. This paper is copyright by Nature, but have put ICSD details on https://neutronoptics.com/downloads/C60-icsd_66729.jpg <https://neutronoptics.com/downloads/C60-icsd_66729.jpg> Below the 249K transition, the structure becomes ordered with a different cubic phase. You will find more ISIS work on C60 with inclusion compounds, eespecially superconducting K3C60 on https://neutronoptics.com/downloads/K-C60-icsd.jpg including Peter Steven's paper. Kind Regards, Alan.
On Fri, 24 Sept 2021 at 16:18, Alan Hewat <alan.he...@neutronoptics.com> wrote: > Dear Francois. > > Thank you for putting the paper on your private server rather than sending > it to the whole list. However the correct link should be: > https://perso.univ-lemans.fr/~fgouten/C60/ > Koichi KIKUCHI, et al Physiea C 185-189 (1991) 415-416 > STRUCTURE AND SUPERCONDUCTIVITY OF SINGLE CRYSTALLINE C80 > There are quite a number of papers on C60 superconductors, in particular > by Bill David and colleagues at ISIS, and it would be worthwhile doing a > broader search of the literature. > > Kind regards, Alan. > > On Fri, 24 Sept 2021 at 14:56, francois Goutenoire < > francois.gouteno...@univ-lemans.fr> wrote: > >> Dear Rietveld users, >> >> Sorry for the mistake, the paper was published in 1991. >> >> I put the paper in the link >> >> http:\\perso.univ-lemans.fr\~fgouten\C60 >> >> From the previous answer it seems that it is not really realiable. >> >> Best wishes françois Goutenoire >> >> >> Le 24/09/2021 à 12:05, francois Goutenoire a écrit : >> >> Dear Rietveld users, >> >> We are currently looking for the atomic structure (cif file) of the C60 >> Orthorhombic cell >> >> The previous paper : "Structure and superconductivity of single >> crystalline C60" from Koichi Kikuchi et al. >> >> Physica C in 1975 >> >> The cell parameters are given a=25.011 Ang, b=25.582 Ang. c=10.003 Ang. >> Space group Pbnm >> >> but there is not atomic position in the paper. >> >> Best regards, françois Goutenoire >> >> >> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >> Please do NOT attach files to the whole list <alan.he...@neutronoptics.com> >> <alan.he...@neutronoptics.com> >> Send commands to <lists...@ill.fr> <lists...@ill.fr> eg: HELP as the subject >> with no body text >> The Rietveld_L list archive is on >> http://www.mail-archive.com/rietveld_l@ill.fr/ >> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >> >> >> -- >> ********************************************************************************************* >> Pr. Francois GOUTENOIRE >> e-mail: francois.gouteno...@univ-lemans.fr >> Tel: 02.43.83.33.54 >> FAX: 02.43.83.35.06 >> Skype Entreprise visio conférence >> Département des Oxydes et Fluorures >> Institut des Molécules et des Matériaux du Mans >> IMMM - UMR CNRS 6283 >> Université du Maine - Avenue Olivier Messiaen >> F-72085 Le Mans Cedex 9 >> FRANCE >> ********************************************************************************************* >> Formation Rietveld CNRS >> 2020https://cnrsformation.cnrs.fr/diffraction-des-rayons-x-sur-materiaux-polycristallins?axe=135 >> Formation EDX CNRS >> 2020https://cnrsformation.cnrs.fr/fluorescence-x-edx?axe=135 >> Formation SAXS et Réflectivités pour couches minces et matériaux >> nanostructurés.https://cnrsformation.cnrs.fr/caracterisation-des-materiaux-nanostructures-par-diffusion-des-rayons-x?axe=135 >> Bibliographiehttps://scholar.google.fr/citations?hl=fr&user=qC-lmN4AAAAJ&view_op=list_works&authuser=1&sortby=titlehttps://orcid.org/0000-0001-5339-3002 >> >> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >> Please do NOT attach files to the whole list <alan.he...@neutronoptics.com >> > >> Send commands to <lists...@ill.fr> eg: HELP as the subject with no body >> text >> The Rietveld_L list archive is on >> http://www.mail-archive.com/rietveld_l@ill.fr/ >> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >> >> > > -- > ______________________________________________ > * Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE * > <alan.he...@neutronoptics.com> +33.476.98.41.68 > http://www.NeutronOptics.com/hewat TVA FR 79499450856 > ______________________________________________ > -- ______________________________________________ * Dr Alan Hewat, NeutronOptics, Grenoble, FRANCE * <alan.he...@neutronoptics.com> +33.476.98.41.68 http://www.NeutronOptics.com/hewat TVA FR 79499450856 ______________________________________________
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Please do NOT attach files to the whole list <alan.he...@neutronoptics.com> Send commands to <lists...@ill.fr> eg: HELP as the subject with no body text The Rietveld_L list archive is on http://www.mail-archive.com/rietveld_l@ill.fr/ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
