Hi Matthias
Another crucial point to phase with sulphur anomalous signal is to use
an appropriate scaling protocol. You can find extense discussion in
the reference Matt posted.
In case you want just to calculate an anomalous difference Fourier map
you don't need to go that soft, you can try first to calculate it with
the dataset you already have... For Ca it will be surely enough!
Ciao
D
Sent from my iPod
On Nov 11, 2009, at 1:16 PM, Matthias Zebisch <matthias.zebi...@bbz.uni-leipzig.de
> wrote:
Dear bb!
What is the optimal wavelength for Sulfur SAD phasing?
Is it 1.9A or should one go below that to reduce absorption/damage.
Also, would the same wavelength be appropriate to maximize anomalous
scattering to position chlorides, calcium, sulfate in already phased
structures?
Thanks in advance,
Matthias
