Dear Marta Martínez Alonso, Thank You for your suggestion. I will try that and I am watching videos to familiarize with OLEX.

Thanks again

Venkat

Dear Venkata,

the deeper sense of the use of the checkcif program is to find systematic or individual errors. If some strong reflections do not fit with the structural model and/or some parameters get out of hand, in most cases the data are corrupted. Thus, you should find out why the dataset behaves that way.

A good test is to use a standard weighting scheme with a small A value to check the quality of the data. I would like to encourage you to find out what happend to your dataset. In most case the B- and C Alerts  provide some additional information to understand the problem. Sometimes a non-optimal data reduction creates some problems. The simple OMITing of many non-fitting reflections is a kind of cheating to me.

Best regards

Guido

Hi Venkat,

could you please explain bit clearly how do you solve this problem?

Dear Dinesh, I have not solve the issue. I am trying get some help from the crystallography expert.

open your  .lst file there you will find hkl values of the bad reflections, so copy these hkl values in .ins file and with omit command ...

Dear Dinesh, I can see four reflections  Likely Affected by the Beamstop having very high resolution.

Where do I have to copy these reflections in .ins file and how do I have to write omit command. 

Thank You for your help

Dear Venkat, anywhere you can copy in .ins file and then refine it...