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Science Forum Index » Chemistry Forum » questions on shape of XeF6
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| chemistrynewbie! |
 Posted: Fri Jan 02, 2004 9:28 am |
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| Martin |
| Posted: Sun Jan 04, 2004 7:48 am |
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I'm afraid your background info is incorrect. Xenon hexafluoride does
not assume an octahedral configuration. An MX7 compund can according
to the VSEPR theory assume three structures: pentagonal bipyramidal,
capped trigonal prismatic, or the probable capped octahedral
structure. It is believed that XeF6 assumes a probable capped
octahedral structure. This structure looks very much like the
octahedral structure characteristic for MX6 compounds, however, the
probable capped octahedral structure is slightly different seeing as
it has the seventh X (in our case the lone pair) "sticking out of the
side" of the octahedron which gives it a sligthly different geometry.
Hope it helped (despite lack of graphics)
Martin
smallsowa@yahoo.com.hk (chemistrynewbie!) wrote in message news:<16a9e3b1.0401020628.2b159745@posting.google.com>...
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