Dear Faisal, When scrutinising such distances do be aware of the possibility of false precision in the estimates; see eg http://dx.doi.org/10.1107/S2052252513031485 Best wishes, John
Prof John R Helliwell DSc On 17 Apr 2014, at 21:13, Faisal Tarique <faisaltari...@gmail.com> wrote: > Dear all > > Can anybody please explain what is the classical metal ion coordination for > Mg2+, Ca+ and Na+ with Oxygen atom and the average distance with these metal > ions..does the distance vary with the type of metal ion and its coordination > with oxygen atom..what is the best way to identify the correct metal ion in > the electron density in the vicinity of negatively charged molecule mostly > oxygen containing molecule..In one of my paper the reviewer has asked me to > check whether the octahedrally coordinated Mg+ is Ca+ ion..and similarly > raised doubt about the identity of the Na+ ion as well..his argument was > based on metal ion to oxygen distance..I am attaching the figure with this > mail..i request you to please shed some light on this area and help me in > clearing some doubts regarding this. > > -- > Regards > > Faisal > School of Life Sciences > JNU > > <Fig3.tif>
