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- From: nuke@reed.edu (Bill Newcomb)
- Newsgroups: sci.chem
- Subject: Re: XRAY diffraction of C60 CRISTAL
- Message-ID: <1993Jan28.012340.3202@reed.edu>
- Date: 28 Jan 93 01:23:40 GMT
- Article-I.D.: reed.1993Jan28.012340.3202
- References: <1993Jan21.173950.7622@reed.edu> <39556@sophia.inria.fr>
- Organization: Reed College, Portland, OR
- Lines: 21
-
- laurent@cenerg.cma.f writes:
-
- >But I read in papers that C60 cristal was not a real cristal
- >but a "molecular cristal" in the sense that every buckyball
- >(at non zero temperature) is moving arround the sphere center with
- >a random movement (no covalent link between atoms of two buckyball).
- >So how to be able to tell where individual atoms are ?
-
- Well, strictly speaking there shouldn't be any covalent linkages between
- carbons on adjacent buckyballs, or you'd have polybuckyball, or something.
- However I do believe the part about them rotating in place, which would make
- the possibility of obtaining a good diffraction pattern somewhat less. If
- there were enough of an energy minimum at some orientation, then they might
- be in one place enough of the time for the average to be visible. If I am
- wrong about this one then someone call me on it. It seems at least possible
- that I am, but this may be something of a unique problem for fullerenes.
-
- Bill Newcomb
- nuke@reed.edu
- --
- ~/.oo
-