Bond valence sum Muller et al. Acta Cryst. (2003). D59, 32-37 if the resolution is good (better than 1.8 A)
R On 16 Nov 2011, at 18:20, Jacob Keller wrote: > Dear Crystallographers, > > I have crystals containing 666mM NH4 and 540mM Na, and there appears > to be a "water" which is only about 2.2 Ang from some polar atoms. It > is currently reasonably happy as a Na, but is there any reasonable way > to decide which cation is there? > > JPK > > -- > ******************************************* > Jacob Pearson Keller > Northwestern University > Medical Scientist Training Program > email: [email protected] > ******************************************* Roberto Steiner, PhD Randall Division of Cell and Molecular Biophysics Group Leader King's College London Room 3.10A New Hunt's House Guy's Campus SE1 1UL, London, UK Tel 0044-20-78488216 Fax 0044-20-78486435 [email protected]
