Is it a crystal if there are no reflections?  Aren't Bragg reflections a 
necessary and sufficient condition for calling something a crystal?  Ron

On Thu, 30 Nov 2017, Geny wrote:


​Dear EveryOne,
​​I recently tried to collect the diffraction data, but unluckily, the 
diffraction patter is attached in this
email. There is no any diffraction spots ​at all. It is my honor to ask experts 
worldwide why the crystal does
this, and how to improve the quality of this kind of crystal. if you have any 
ideas, would you like to share? 
Thank you so much and really appreciate it.

Bests,
Geny


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