Hi Jacob,
one possible explanation for a smoothly varying twin fraction would be
two intergrown crystals (i.e. not a twin). Intergrown crystals often do
so by a rotation of 180degrees, which is not your case, but maybe the
rotation just happens to be close to your twin law.
There are experimental approaches to overcome such a problem:
Uou could try higher concentration of the cryoprotectant to kick off the
two crystals. Higher temperatur during crystal genesis is also often
recommended.
Best,
Tim
On 07/16/2015 09:12 PM, Keller, Jacob wrote:
>
> Ps The question is "now what?" I assume there is no software for fitting a smoothly-varying twin fraction estimate as a function of phi?
>
>
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Dr Tim Gruene
Institut fuer anorganische Chemie
Tammannstr. 4
D-37077 Goettingen
phone: +49 (0)551 39 22149
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