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Topic: anisotropic and isotropic  (Read 3280 times)

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Offline fdwrds

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anisotropic and isotropic
« on: May 01, 2008, 03:58:19 PM »
can someone explain the difference, plus give an example of and isotropic atom, other than hydrogen

thanks
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Offline AWK

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Re: anisotropic and isotropic
« Reply #1 on: May 02, 2008, 01:12:29 AM »
These terms are used in crystallography. Is it your subject?
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Offline fdwrds

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Re: anisotropic and isotropic
« Reply #2 on: May 02, 2008, 09:03:39 AM »
Am studying x-ray diffraction at the moment
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Offline AWK

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Re: anisotropic and isotropic
« Reply #3 on: May 06, 2008, 04:40:51 AM »
What about Na+ or Cl- in NaCl Fm-3m cubic structure?

Note - isotropic hydrogen atoms - this is only an aproximation for LS calculations. Also anisotropic model is also only the approximation of thermal motion, though much better than isotropic one.
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